U-SYS MRS6100 System Description

Huawei Technologies Proprietary

U-SYS MRS6100 Media Resource Server V100R003

System Description Issue 02

Date 2007-4-20

Part Number 31027816

Huawei Technologies Proprietary

Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service. For any assistance, please contact our local office or company headquarters.

Huawei Technologies Co., Ltd. Address: Huawei Industrial Base

Bantian, Longgang Shenzhen 518129 People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

Copyright © Huawei Technologies Co., Ltd. 2007. All rights reserved. No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd. All other trademarks and trade names mentioned in this document are the property of their respective holders. Notice The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied.

U-SYS MRS6100 System Description Contents

Issue 02 (2007-4-20) Huawei Technologies Proprietary i

Contents

About This Document.....................................................................................................................1

1 Overview of the MRS6100........................................................................................................1-1

1.1 Location.......................................................................................................................................................1-2 1.2 Appearance ..................................................................................................................................................1-3

1.2.1 Cabinet ..............................................................................................................................................1-3 1.2.2 Frame.................................................................................................................................................1-5

1.3 Functions .....................................................................................................................................................1-5 1.3.1 Media Resource Functions ................................................................................................................1-5 1.3.2 OAM Functions.................................................................................................................................1-7

1.4 Features .......................................................................................................................................................1-9 1.4.1 Large Capacity and High Integrity ....................................................................................................1-9 1.4.2 Smooth Expansion.............................................................................................................................1-9 1.4.3 High Reliability .................................................................................................................................1-9 1.4.4 High Security ..................................................................................................................................1-11 1.4.5 Easy Operation and Maintenance....................................................................................................1-11 1.4.6 Convenient Upgrade........................................................................................................................1-12 1.4.7 Various Interface Types ...................................................................................................................1-13

2 System Structure ........................................................................................................................2-1

2.1 Hardware Structure......................................................................................................................................2-2 2.1.1 Physical Structure of the MRS6100 ..................................................................................................2-2 2.1.2 Logical Structure ...............................................................................................................................2-7

2.2 Software Structure .......................................................................................................................................2-8 2.2.1 Module Classification........................................................................................................................2-8 2.2.2 Module Description...........................................................................................................................2-9

3 Alarm and Voice Processing Principles.................................................................................3-1

3.1 Alarm Principles ..........................................................................................................................................3-2 3.1.1 Alarm System Structure.....................................................................................................................3-2 3.1.2 Alarm Levels and Types ....................................................................................................................3-3 3.1.3 Alarm Box and Alarm Console..........................................................................................................3-4 3.1.4 Alarm Reporting Path........................................................................................................................3-5

3.2 Voice Processing Principles.........................................................................................................................3-7

Contents U-SYS MRS6100

System Description

ii Huawei Technologies Proprietary Issue 02 (2007-4-20)

3.2.1 Announcement Playing......................................................................................................................3-7 3.2.2 Digit Collecting ...............................................................................................................................3-12 3.2.3 Recording ........................................................................................................................................3-13 3.2.4 Audio Mixing ..................................................................................................................................3-14

4 Networking and Applications .................................................................................................4-1

4.1 Providing Media Resource for Basic Services and Supplementary Service................................................4-2 4.2 Providing Multimedia Services ...................................................................................................................4-3 4.3 Providing IVR Conference Services............................................................................................................4-4

5 OAM System...............................................................................................................................5-1

5.1 Overview .....................................................................................................................................................5-2 5.2 BAM............................................................................................................................................................5-3 5.3 OAM Workstation .......................................................................................................................................5-8 5.4 Emergency Workstation...............................................................................................................................5-9 5.5 Communication Gateway Software.............................................................................................................5-9

6 Reliability and Security Design..............................................................................................6-1

6.1 Reliability Design........................................................................................................................................6-2 6.1.1 Hardware Reliability .........................................................................................................................6-2 6.1.2 Software Reliability...........................................................................................................................6-3

6.2 Security Design ...........................................................................................................................................6-4 6.2.1 Network Security...............................................................................................................................6-4 6.2.2 System Protection..............................................................................................................................6-4 6.2.3 Data Security .....................................................................................................................................6-5 6.2.4 Operation Security.............................................................................................................................6-5

7 Technical Specifications and Environment Requirements ...............................................7-1

7.1 Technical Specifications ..............................................................................................................................7-2 7.1.1 System Capacity................................................................................................................................7-2 7.1.2 System Processing Capability ...........................................................................................................7-2 7.1.3 Physical Parameters...........................................................................................................................7-3 7.1.4 Reliability Indexes.............................................................................................................................7-4 7.1.5 Power Supply and Power Consumption ............................................................................................7-4 7.1.6 Performance Statistics Indexes..........................................................................................................7-5 7.1.7 Audio Conference Indexes ................................................................................................................7-5

7.2 Environment Requirements .........................................................................................................................7-6 7.2.1 Storage Environment.........................................................................................................................7-6 7.2.2 Transportation Environment..............................................................................................................7-8 7.2.3 Operating Environment ...................................................................................................................7-10

8 Compliant Standards.................................................................................................................8-1

8.1 PRC Standards.............................................................................................................................................8-2 8.2 ITU-T Standards..........................................................................................................................................8-2 8.3 IEEE Standard .............................................................................................................................................8-2

U-SYS MRS6100 System Description Contents

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8.4 IETF Standards............................................................................................................................................8-2

A Acronyms and Abbreviations............................................................................................... A-1

Index ................................................................................................................................................ i-1

Figures U-SYS MRS6100

System Description

iv Huawei Technologies Proprietary Issue 02 (2007-4-20)

Figures

Figure 1-1 N610-22 cabinet..............................................................................................................................1-3

Figure 1-2 Front view of the N68-22 cabinet (a single cabinet) .......................................................................1-4

Figure 1-3 Front view of the MRS6100 frame .................................................................................................1-5

Figure 2-1 Physical structure of the MRS6100.................................................................................................2-2

Figure 2-2 Configuration of the MRS6100 basic frame ...................................................................................2-4

Figure 2-3 Service frame structure ...................................................................................................................2-5

Figure 2-4 MRS6100 configuration (main control board)................................................................................2-6

Figure 2-5 MRS6100 hardware logical structure..............................................................................................2-7

Figure 2-6 MRS6100 software structure ..........................................................................................................2-9

Figure 2-7 Software structure of the call processing subsystem.....................................................................2-10

Figure 2-8 Software structure of the media processing subsystem.................................................................2-11

Figure 3-1 Structure of the alarm generation subsystem ..................................................................................3-3

Figure 3-2 Hardware alarm reporting path of the MRS6100 frame..................................................................3-6

Figure 3-3 An example of the MRS6100 register process ................................................................................3-8

Figure 3-4 Process of the MRS6100 playing announcement through MGCP ..................................................3-9

Figure 3-5 Process of the MRS6100 playing announcement through SIP......................................................3-11

Figure 3-6 Conference process of the MRS6100 through MGCP ..................................................................3-15

Figure 4-1 Networking application of the MRS6100 in the fixed network end office .....................................4-2

Figure 4-2 Networking application of the MRS6100 in multimedia RBT service ...........................................4-3

Figure 4-3 Networking application of the MRS6100 in the IVR conference services .....................................4-4

Figure 5-1 Hardware architecture of the MRS6100 terminal system ...............................................................5-2

Figure 5-2 Logic structure of the MRS6100 terminal system ..........................................................................5-3

Figure 5-3 BAM network configuration...........................................................................................................5-5

Figure 5-4 BAM software components ............................................................................................................5-6

U-SYS MRS6100 System Description Tables

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Tables

Table 2-1 MRS6100 boards ..............................................................................................................................2-6

Table 3-1 Description of the MGCP commands and parameters ......................................................................3-9

Table 3-2 Description of the SIP commands and parameters..........................................................................3-11

Table 7-1 System capacity ................................................................................................................................7-2

Table 7-2 N68-22 Cabinet Physical parameters................................................................................................7-3

Table 7-3 N610-22 Cabinet Physical parameters..............................................................................................7-3

Table 7-4 Reliability indexes of the MRS6100.................................................................................................7-4

Table 7-5 MRS6100 power consumption .........................................................................................................7-4

Table 7-6 Climate requirements........................................................................................................................7-6

Table 7-7 Concentration of the mechanically active materials .........................................................................7-7

Table 7-8 Concentration of the chemically active substances...........................................................................7-7

Table 7-9 Mechanical stress indexes.................................................................................................................7-7

Table 7-10 Climate requirements......................................................................................................................7-8

Table 7-11 Concentration of the mechanically active materials........................................................................7-9

Table 7-12 Concentration of the chemically active materials ...........................................................................7-9

Table 7-13 Mechanical stress requirements ....................................................................................................7-10

Table 7-14 Temperature and humidity requirements ......................................................................................7-10

Table 7-15 Other climate requirements...........................................................................................................7-11

Table 7-16 Concentration of the mechanically active materials .....................................................................7-11

Table 7-17 Concentration of the chemically active materials .........................................................................7-12

Table 7-18 Requirements on the mechanical stress ........................................................................................7-12

U-SYS MRS6100 System Description About This Document

Issue 02 (2007-4-20) Huawei Technologies Proprietary 1

About This Document

Purpose This manual is an overall introduction of the MRS6100. It introduces the overview of the MRS6100, system structure, alarm and voice processing principles, networking and applications, OAM system, reliability and security design, technical specifications and environment requirements, and compliant standards of the MRS6100.

Related Versions The following table lists the product versions related to this document.

Product Name Version

MRS6100 V100R003

Intended Audience The intended audiences of this document are:

Network planning and decision-making personnel Network management personnel

Organization This document consists of eight chapters and is organized as follows.

Chapter Description

1 Overview of the MRS6100

This chapter describes the basic concepts of the MRS6100.

2 System Structure This chapter describes both the hardware structure and the software structure of the MRS6100.

About This Document U-SYS MRS6100

System Description

2 Huawei Technologies Proprietary Issue 02 (2007-4-20)

Chapter Description

3 Alarm and Voice Processing Principles

This chapter presents the alarm system structure, alarm levels and types, alarm box and console, alarm reporting path as well as the PA, digits collecting, recording and audio mixing of the MRS6100.

4 Networking and Applications

This chapter focuses on the system networking and typical applications of the MRS6100.

5 OAM System This chapter details the operation administration and maintenance system of the MRS6100 in the aspects of functions, man-machine language, terminal system, and network management.

6 Reliability and Security Design

This chapter presents the reliability measures and security design of the MRS6100.

7 Technical Specifications and Environmental Requirements

This chapter lists the technical specifications and environmental requirements of the system – the MRS6100 taking into account the actual conditions of Huawei-developed system.

8 Compliant Standards This chapter lists the standards that the product complies with.

Appendix A Acronyms and Abbreviations

This part collects the definitions of terms and acronyms that are used in this manual.

Conventions

Symbol Conventions The following symbols may be found in this document. They are defined as follows.

Symbol Description

Indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury.

Indicates a hazard with a medium or low level of risk which, if not avoided, could result in minor or moderate injury.

Indicates a potentially hazardous situation that, if not avoided, could cause equipment damage, data loss, and performance degradation, or unexpected results.

Indicates a tip that may help you solve a problem or save you time.



Symbol Description

Provides additional information to emphasize or supplement important points of the main text.

General Conventions

Convention Description

Times New Roman Normal paragraphs are in Times New Roman.

Boldface Names of files, directories, folders, and users are in boldface. For example, log in as user root.

Italic Book titles are in italics.

Courier New Terminal display is in Courier New.

Command Conventions


Boldface The keywords of a command line are in boldface.

Italic Command arguments are in italic.

[ ] Items (keywords or arguments) in square brackets [ ] are optional.

{ x | y | ... } Alternative items are grouped in braces and separated by vertical bars. One is selected.

[ x | y | ... ] Optional alternative items are grouped in square brackets and separated by vertical bars. One or none is selected.

{ x | y | ... } * Alternative items are grouped in braces and separated by vertical bars. A minimum of one or a maximum of all can be selected.

GUI Conventions


Boldface Buttons, menus, parameters, tabs, window, and dialog titles are in boldface. For example, click OK.

> Multi-level menus are in boldface and separated by the “>” signs. For example, choose File > Create > Folder.

About This Document U-SYS MRS6100

System Description

4 Huawei Technologies Proprietary Issue 02 (2007-4-20)

Keyboard Operation Format Description

Key Press the key. For example, press Enter and press Tab.

Key 1+Key 2 Press the keys concurrently. For example, pressing Ctrl+Alt+A means the three keys should be pressed concurrently.

Key 1, Key 2 Press the keys in turn. For example, pressing Alt, A means the two keys should be pressed in turn.

Mouse Operation Action Description

Click Select and release the primary mouse button without moving the pointer.

Double-click Press the primary mouse button twice continuously and quickly without moving the pointer.

Drag Press and hold the primary mouse button and move the pointer to a certain position.

Update History Updates between document versions are cumulative. Therefore, the latest document version contains all updates made to previous versions.

Updates in Issue 02 (2007-04-20) 1.3.1 Media Resource Functions

Description of sending and receiving the FSK signals is added.

1.3.2 OAM Functions

Description of the message tracing is modified.

3.2.2 Digit Collecting

Description of the FSK is added.

1.4.3 High Reliability

This section is added to describe the bidirectional heartbeat function.

3.2.1 Announcement Playing

Announcement playing of the MRS6100 is added.

4.1 Providing Media Resource for Basic Services and Supplementary Service



A description is added.

Updates in Issue 01 (2006-10-31) Initial field trial release

U-SYS MRS6100 System Description 1 Overview of the MRS6100

Issue 02 (2007-4-20) Huawei Technologies Proprietary 1-1

1 Overview of the MRS6100

About This Chapter

The following table lists the contents of this chapter.

Section Describes

1.1 Location The location of the MRS6100

1.2 Appearance The cabinet and frame of the MRS6100

1.3 Functions The functions of the MRS6100

1.4 Features The features of the MRS6100

1 Overview of the MRS6100 U-SYS MRS6100

System Description

1-2 Huawei Technologies Proprietary Issue 02 (2007-4-20)

1.1 Location The media resource server (MRS6100) is the core resource component in the NGN. The MRS6100 provides the media value-added services.

It provides the NGN with the media data processing services, such as:

Announcement playing Digit collecting Voice synthesis Voice recognition Recording Audio conference Video conference

The MRS6100 is controlled by the devices such as the SoftSwitch and the application server (AS). It provides the media resource functions in the NGN.

When it is controlled by the SoftSwitch, the MRS6100 provides the following: − Signal tone resource − Conference resource − Digit collecting resource

The MRS6100 can be used with the SoftSwitch and AS (MediaX3600) for networking. The network can provide the interactive voice response (IVR) conference service. It supports the functions, such as: − Reserving a conference − Attending a conference − Canceling a conference − Modifying the speech authority of the participants taking part in the conference

The MRS6100 can be used with the SoftSwitch, AS and media devices for networking. The network can provide both audio and video services.



1.2 Appearance 1.2.1 Cabinet

The N610-22 cabinet is used when the MRS6100 is used with AS for networking.

See Figure 1-1.

Figure 1-1 N610-22 cabinet

The N68-22 cabinet is used when the MRS6100 is used with SoftSwtich (SoftX3000), and AS (MediaX3600) for networking.

See Figure 1-2.


System Description


Figure 1-2 Front view of the N68-22 cabinet (a single cabinet)



1.2.2 Frame Figure 1-3 shows the frame of the MRS6100 in front view.

Figure 1-3 Front view of the MRS6100 frame

1.3 Functions The MRS6100 provides the following functions:

Media resource Operation and maintenance (OAM)

1.3.1 Media Resource Functions The MRS6100 provides the media resource functions as follows.

Receiving and Sending the DTMF Signals The MRS6100 can detect the dual tone multi-frequency (DTMF) signals from the real-time transport protocol (RTP) voice payload or the RTP voice payload in the RFC2833 format. The MRS6100 can send DTMF signals under the control of the SoftSwitch or AS.


System Description


Receiving and Sending the FSK Signals The MRS6100 can detect the frequency shift keying (FSK) signals from the RTP voice payload and send FSK signals under the control of the SoftSwitch.

Generating and Sending the Signal Tone The MRS6100 can:

Recognize the signal tone tags that come from the SoftSwitch or AS. Generate the related signal tones such as dialing tone or busy tone. Send the related signal tones.

Playing Announcement The MRS6100 plays the announcement in the customized voice coding format, as required by the control devices.

The announcement can be recorded in the following coding formats:

G.711A/μ G.729A G.723.1

Audio Conference The MRS6100 provides the multiparty conference. It supports the terminals with multiple coding and decoding formats.. The organizer can control the conference in real time.

Switching Between the Voice Coding and Decoding The MRS6100 supports multiple voice coding and decoding algorithms, such as

G.711A/μ G.723.1 G.729A.

It can switch between the coding and decoding algorithms.

Recording The MRS6100 can record a single channel or the entire conference. It supports multiple record file formats, such as G 711A and G 729A.

The recorded voice files can be stored on the external server in the specified path.

Video Bulletin Under the control of the SoftSwitch or AS, the MRS6100 provides the video bulletin function, including:

Multiple video coding and decoding, such as H.263 Multiple image formats, such as CIF and QCIF



Multiple video rate from 64 kbit/s to 384 kbit/s (one MRPC pinch board supports 100 channels for 64 kbit/s or 30 channels for 384 kbit/s.)

TTS Function MRS6100 supports the multi-language TTS function.

1.3.2 OAM Functions The OAM functions of the MRS6100 are realized through the OAM system in the MRS6100 client tools.

The MRS6100 provides the following OAM functions. .

Authority Management The MRS6100 OAM system is a multi-user system. To ensure that the system can be used safely, the authorities vary with the operators and workstations (WS).

Data Storage The data of the MRS6100 includes two types, that is, back administration module (BAM) data and host data.

The BAM data of the MRS6100 is stored on the sequential query language (SQL) server of the BAM. Through the data management program of the BAM, the data operation authorities are managed in a hierarchical method.

The BAM data can be backed up in real time. When you modify some important data, you should back up the data.

The host data can be stored on the client in two ways, that is, with data backup in the flash and without data backup in the flash.

Fault Management The fault management system includes a set of complete and intelligent software. It can detect, isolate and rectify faults when the modules run abnormally.

When a fault that occurs affects the services in the MRS6100, the related module generates an alarm. Then the alarm management module reports the alarm to the operator for solving the problem.

If a fault or an exception occurs when the device is running, the system provides the related alarm for solving the fault.

Performance Statistics Performance statistics means measuring and collecting all kinds of data on the MRS6100.

The system can collect and monitor the running status, signals, and users of the MRS6100 (or telecom network). It can also monitor the usage of the system resources. In this way, it provides reliable data for the following:

Managing the device running Locating the fault


System Description


Monitoring, maintaining, planning, and designing the network

The performance statistics of the MRS6100 has the following features:

Multiple measurement indexes and tasks Flexible measurement time selection and real-time measurement Task query and output

Online Upgrade After the device is put into use, you may need to modify the adaptation and correct the error of the host programs. That is, you need to correct the defects in the system and add new functions.

In this case, you can use the MRS6100 software patch to upgrade the software, which does not affect the running of the device.

Message Tracing Message tracing means real-time and dynamic tracing and monitoring of the internal control messages and external media gateway control protocol (MGCP) or session initiation protocol (SIP) messages. You can keep the tracing messages for future reference or print the monitor results.

The MRS6100 enables end-to-end signaling tracing based on the MGCP protocol, and thus enhances the serviceability. The MRS6100 can start or stop the message tracing according to the message fields sent by the SoftX3000. The MRS6100 can also save the traced messages in tracing files of a specified format, and uploads the files to the N2000 network management server through FTP.

The traced messages are marked in different colors as follows:

The messages sent by MRS are in green. The received messages are in dark red. All the internal messages are in black.

Man Machine Interaction The MRS6100 uses the man machine language (MML) to provide the man machine interaction. The MML provides a set of commands to operate and query the MRS6100. Using the command set, you can monitor and manage the MRS6100.

Configuration Management The data can be configured when the MRS6100 is offline or online. Using the function, you can load, modify or delete the device and voice files.

When you modify or add the data, the MRS6100 runs normally.

The MRS6100 can be remotely configured through the maintenance client and network management center (NMC).



Log Management The system records all the operation logs of the operators. The contents are listed as follows:

Operation time Command execution time Operation terminal Command Input command result

1.4 Features 1.4.1 Large Capacity and High Integrity

The MRS6100 is of large capacity and high integrity. The features are described as follows:

The fully configured MRS6100 has three frames, which supports up to 7200 voice channels.

The MRS6100 supports up to 200 calls per second (CAPS). The MRS6100 uses the open standards telecom architecture (OSTA) platform. The frame

is 9 U high and 436 mm wide. This ensures high integrity of the system.

1.4.2 Smooth Expansion The MRS6100 features smooth expansion.

The hardware uses the modular structure. You can add new boards when you want to expand the system capacity. This does not affect the system running.

1.4.3 High Reliability The MRS6100 has five reliability features.

Supporting Hardware and Software Redundancy Design The MRS6100 supports the redundancy design of the key components such as the boards, power supply, and bus. This ensures that the device is more reliable.

In the same way, the redundancy design of the software also ensures the high reliability of the MRS6100.

Providing Auto-Detection for Faults and Self-Healing Capability The MRS6100 can automatically detect faults in its hardware and software.

If the hardware or software of a key component is faulty, the MRS6100 generates an alarm. Then the system management unit (SMUI) and media call control unit (MCCU) switches over to the standby host to rectify the fault.

If the fault cannot be rectified, the system resets them for recovery.


System Description


When the MRPC and MRPB boards of the MRS6100 are faulty, the system cannot reset them.

Providing Perfect Protection Function Against Exceptions The MRS6100 provides the protection functions against exceptions. They are listed as follows:

System power-down protection System power switch protection against error operations System power supply protection against lightning Voltage protection (over high or over low) Short circuit protection Over current and voltage protection for the power supply and interfaces Internal temperature regulation and protection for the power supply Protection against exceptional packets

Supporting Hot-standby for MCCU and Online Modification Even when errors occur on the active MCCU, calls can be connected.

After modifying the configuration of MCCU online, for example, modifying the IP address, you need not reset the board.

Supporting to Isolate and Activate the MSU When using the MML command to configure the MSU, you can set the status to isolated or activated.

You can understand the status of the MSU from the color displayed on the Device Manager of the MRS6100 OMS Client. If the color is dark red, it indicates that the MSU is isolated.

Ensuring Data Security The system-class critical data of the MRS6100 can be backed up on your hard disk or CDs. The following also can be backed up:

Device running parameters that you configure Statistics information Operator information Administrator information Logs

When the MRPC and MRPB boards of the MRS6100 are faulty, the system cannot auto reset them.

Ensuring Operation Security The MRS6100 ensures the system security in the following ways:

Operator authority management Login and logout control



Security control and protection Operation logs

Supporting the Dual Homing Function The MRS6100 supports dual homing.

In the Media Gateway Control Protocol (MGCP), an MRS6100 can register on two SoftSwitches. When one SoftSwitch is faulty, the MRS6100 switches to the other SoftSwitch. In this case, calls will be ended.

Bidirectional heartbeat When the SIP is used, the bidirectional heartbeat in a session is supported to check whether the connection between client and MRS is normal, thus to prevent the MRS resources from occupied for long-term and not released.

You can enable this function and set the heartbeat interval through the Connect Check Enable and Connect Check Time parameters respectively when configuring the MCCU.

1.4.4 High Security The MRS6100 ensures the system security with respect to the following:

The network management system (NMS) of the MRS6100 provides a strict user authentication function.

The system can prevent exceptions, including: − Maintenance error preventing − Voltage protection (over high or over low) − Adaptation to the environment (especially the hot stress) − Protection against power-off in loading

The system has multiple alarm processing mechanisms. The MRS6100 can protect the data strictly.

1.4.5 Easy Operation and Maintenance The MRS6100 provides the OAM functions that are easy to use and are practical.

Flexible and Diversified Management Modes The NM network can be constructed depending on the factors such as:

Network structure Management requirements Investment scale

The OAM system works in the client/server mechanism, providing many maintenance modes such as:

Graphical User Interface (GUI) Man Machine Language (MML)

The MRS6100 can be accessed by more than one local and remote client at the same time.


System Description


Visualized GUI The MRS6100 provides the OAM interfaces by using a unique navigation tree to avail many MML features and GUI advantages are kept, such as:

Visualized Simple Quick to use Easy to access the NMS Easy to memorize

Real-Time Fault Management Capability The MRS6100 receives and reports the faults about the network devices in real time. It provides the audible and visible alarms in real time through the topology, the alarm panel, or the alarm box.

The MRS6100 has the fault management system to report and filter the leveled faults. This helps the carriers to locate and rectify the faults quickly.

Comprehensive Help System The online help is integrated in the MRS6100. You can retrieve the help system any time you want.

Other Functions The MRS6100 also supports the following functions:

Installing the software patches online Debugging the system online Maintaining the system remotely Setting the data dynamically

The MRS6100 supports to maintain the status of communication between MRS6100 and AS. The ENIP or MediaX can query the MRS6100 resource through the INFO messages to maintain the status.

The MRS6100 supports to check the RTP link. Through the RTCP, the MRS6100 can check if the terminal devices are online, and report the results to AS.

1.4.6 Convenient Upgrade The MRS6100 provides an easy and safe upgrade method. It has the following features.

Easy to Upgrade The MRS6100 setup features the Windows style and has the similar setup wizard. The default settings are most applicable. This helps you to install, upgrade or recover the system easily.

The program design is separated from the data design. This ensures that the upgraded system can inherit the legacy data.



Safe to Upgrade During the upgrade, the MRS6100 setup program backs up the system database in more than one mode many times to ensure the security.

Also, the MRS6100 setup backs up the loading files of the old version to ensure that the system files can be restored to the old version if the new version fails to be loaded. If the upgrade fails, the setup program restores the system to the status before upgrade.

Online Upgrade The MRS6100 provides uninterrupted online upgrade for the network services.

Separate Upgrade Tool The upgrade tool can be used alone to ensure the efficiency and security of the upgrade.

1.4.7 Various Interface Types The MRS6100 supports rich protocols and provides several interfaces as follows:

Protocol Interfaces The MRS6100 supports:

Session Initiation Protocol (SIP) IETF RFC3261 Media Gateway Control Protocol (MGCP) (RFC 3435) Session Description Protocol (SDP) (IETF RFC 2327) PacketCable NCS V1.0 Vxml 1.0 Multiple voice coding and decoding protocols: G.711A, G.711μ, G.723.1, G.729A, and

G.729B Multiple transfer protocols: RTP, Real-time Transport Control Protocol (RTCP), File

Transfer Protocol (FTP), and Network File System (NFS)

The MRS6100 conforms to the following standards:

− IETF RFC 1889, Real-time Transport Protocol (RTP) and RTP Control Protocol (RTCP)

− IETF RFC 2833, RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals

− IETF RFC959, File Transfer Protocol (FTP); IETF RFC 3530 Network File System (NFS) version 4 Protocol

− IETF RFC2198, RTP Payload for Redundant Audio Data (to receive and process the RTP packets of the redundant voice)

Physical Interfaces Fast Ethernet (FE) interfaces


System Description


NM Interfaces MML interfaces

U-SYS MRS6100 System Description 2 System Structure


2 System Structure

About This Chapter


Section Describes

2.1 Hardware Structure The hardware structure of the MRS6100

2.2 Software Structure The software structure of the MRS6100

2 System Structure U-SYS MRS6100

System Description


2.1 Hardware Structure This section describes the composition of the MRS6100 hardware. They are listed as follows:

Cabinet Frame Boards

2.1.1 Physical Structure of the MRS6100 Figure 2-1 shows the physical structure of the MRS6100..

Figure 2-1 Physical structure of the MRS6100

0# frame

1#

2#

FS

0#LANSwitch

1#LANSwitch

BAM

VPS

LANSwitch

To NMS

WS WS WSEW

GE/FE

FE..

.

...

GE/FE

WebServer

frame

frame

GE: Gigabit Ethernet interface WS: Workstation VPS: Vxml Parser Server FE: Fast Ethernet interface FS: File Server EW: Emergency Workstation NMS: Network Management System

The MRS6100 consists of MRS6100 frames, LAN Switch, BAM and file server.

The functions of these parts are as follows:

The frame of the MRS6100 provides the service processing and resource management. The VPS parses the Vxml script. BAM provides the functions of operation and maintenance. LAN Switch provides the channel for the communication between the host and the

BAM. The file server is used to store all voice files.



Figure 2-1 helps you to know that all devices of the MRS6100 are connected through two LAN Switches.

The features of the communication between the devices are as follows:

BAM and each MRS6100 frame are connected to the 0#LAN Switch and 1#LAN Switch through two network cables. In this way, two internal Ethernets are set up for the communication between the devices. The two Ethernets work in the active and standby mode.

The BAM is connected to an external LAN Switch through a network cable. The WSs communicate with the BAM through TCP/IP in the client/server mode.

In practice, the system capacity of the MRS6100 is decided by the number of frames, which ranges from 1 to 3. This can meet the need of a smooth expansion.

Figure 2-1 is an example of the MRS6100 hardware structure. In fact, all the components of the MRS6100 are placed in the MRS6100 cabinet. The frames of the MRS6100 process the services. The OAM system carries out the OAM functions of the MRS6100. The following three sections describe the cabinet, frame and boards of the MRS6100.

For details on the OAM system, see chapter 5 "OAM System."

Cabinet The MRS6100 uses the N68-22 or N610-22 cabinet of Huawei Technologies Co., Ltd. (Huawei for short).

The available space inside the cabinet is 46 U (1U = 44.45 mm).

The cabinet consists of:

Power distribution frame MRS6100 frames Air deflectors Cable troughs Filler panels Rack Guide rail Fiber coiler

The cabinet uses the –48 V DC power supply, which conforms to the IEC297. This can meet the flexible need of configuring the internal modules.

See Figure 2-2.


System Description


Figure 2-2 Configuration of the MRS6100 basic frame

KVMS (1U)

Extended frame01(9U)

Air deflector(2U)

Non-standard filler panel(1U)

Power distribution frame(2U)

Basic frame02(9U)

1# LAN Switch(1U)

0# LAN Switch(1U)

Server（2U）

Filler panel(3U)

3# LAN Switch(1U)

2# LAN Switch(1U)

Server（2U）

Server（2U）

Air deflector(2U)




Cable trough(1U)

Cable trough(1U)

Cable trough(1U)

Cable trough(1U)

KVMS(1U)

Extended frame01(9U)

Air defence frame(2U)

Filler panel(1U)

Power distribution frame(2U)

Basic frame02(9U)

Server（2U）

Filler panel(2U)

3# LAN Switch(1U)

2# LAN Switch(1U)

Server（2U）

Server（2U）

Air deflector(2U)

Cable trough(1U)

BAM Server（2U）

Filler panel(1U)

Filler panel(1U)

Cable trough(1U)

Filler panel(2U)

Filler panel(2U)

N68-22Cabinet N610-22Cabinet

Frame The MRS6100 uses the frame that is 436 mm wide and 9 U high. The design conforms to the IEC297 standard. The MRS6100 frame provides a backplane in the middle. A board and its related rear board are connected through the backplane. The frame includes 21 pairs of slots with a unified leadout. At the bottom of the frame, a hot-swap fan tray is installed. The air goes upwards for heat dissipation.



Figure 2-3 shows the structure of the MRS6100 frame.

Figure 2-3 Service frame structure

1 Fan tray 2 Frame in front view 3 Frame in back view

Boards The MRS6100 boards include the front boards and the back boards.

The front boards process the services. The back boards provide the interfaces for the related front boards.

Figure 2-4shows the configuration of the MRS6100 boards. The following boards must be configured and installed in the fixed slots:

SMUI System Interface Unit (SIUI) HSCI Alarm Unit (ALUI) MCCU Back Insert FE Interface Unit (BFII) UPWR

The Media Service Unit (MSU) is a service board and at least one MSU must be configured. The EAM is an embedded management board that can provide the OAM functions. Each MSU can support up to 240 IVR voice channels that are used for coding and decoding. You can configure the number of the MSUs according to your requirement.


System Description


See Figure 2-4.

Figure 2-4 MRS6100 configuration (main control board)

0 1 2 3 4 8765 109 11 12 13 14 15 16 17 18 19 20

BFII

Back

FrontMSU

ALUI

BFII

MRI

MRI

MRI

MRI

SIUI

HSCI

SIUI

HSCI

MRI

MRI

MRI

MRI

MRI

MRI

UPWR

UPWR

UPWR

UPWR

MCCU

MCCU

MSU

MSU

MSU

MSU

SMUI

SMUI

MSU

MSU

MSU

MSU

MSU

Table 2-1 lists the main boards of the MRS6100 and their functions.

Table 2-1 MRS6100 boards

Board Full Name Function

SMUI System Management Unit Managing all the other boards in the frame. Loading and managing the system programs and data.

SIUI System Interface Unit Back board of the SMUI, providing external interfaces for the SMUI.

HSCI Hot-Swap and Control unit Connecting the left and right halves to share the resources.

MSU Media Service Unit Service board, providing the media processing functions.

MRI Media Resource Interface Back board of the MSU, providing the FE interfaces for the media streams.

ALUI Alarm Unit Alarm board, displaying the power supply and faults of the back boards through the alarm indicator.

MCCU Media Call Control Unit Receiving and sending the IP packets, processing the messages of the Media Access Control (MAC) layer, and sending the SIP/MGCP messages.

BFII Back insert FE Interface unit Back board of the MCCU, providing external physical interfaces for the MCCU.



Board Full Name Function

UPWR Universal Power Providing the DC power supply for all the boards in the frame.

2.1.2 Logical Structure The MRS6100 consists of four logical modules:

System support subsystem Call processing subsystem Media processing subsystem OAM terminal

See Figure 2-5.

Figure 2-5 MRS6100 hardware logical structure

MSUMSU

Shared high speed bus and switchedFE

SMUI

MCCU, VPS

MSU

Operation and maintenaceterminal subsystem

Media processingsubsystem

Media streaminterfaces FE

Call processingsubsystem

Call controlinterfaces FE

BAMserver

EmergencyWS

O&M WS

System supportsubsystem

TTS Server

ASR Server

System Support Subsystem This subsystem loads the software or data, manages and maintains the devices, and carries out the inter-board communication.

It includes the SMUI, SIUI, and HSCI.

The SMUI is the main control board of the frame. It loads the devices, configures the data, and controls their working status.


System Description


The HSCI carries out the bridging between the left and right shared resource buses, board hot swap control, and intra-frame Ethernet bus switching. The HSCI does not include a CPU. It is configured and maintained by the SMUI through the shared resource bus.

Call Processing Subsystem This subsystem has the SIP and MGCP call processing functions.

The MCCU parses and distributes the SIP and MGCP protocol. The VPS translates the VXML script. The VPS communicates with the MSU through the internal Ethernet bus and controls the MSU for media processing.

Media Processing Subsystem This subsystem consists of the MSUs.

It processes the media streams. They are listed as follows:

RTP/RTCP Voice codec Conference bridge Video

OAM Subsystem This subsystem manages and maintains the entire system.

It consists of the following devices:

BAM WS EMS

2.2 Software Structure This section describes the modules of the MRS6100 software system and then describes each module.

2.2.1 Module Classification The MRS6100 uses the hierarchical modular software structure from the top to the bottom. The design focuses on integration. This ensures:

High reliability Easy maintenance Easy expansion

The MRS6100 software is a distributed system. It runs on the MCCU, MSU and VPS.

Logically, the MRS6100 software system consists of three modules:

Call processing subsystem



Media processing subsystem System support subsystem

See Figure 2-6.

Figure 2-6 MRS6100 software structure

2.2.2 Module Description This section describes each software module.

System Support Subsystem This subsystem uses Huawei distributed object-oriented programmable real-time architecture (DOPRA) to provide the application layer with the uniform application program interfaces (API).

Also, the system support subsystem provides the upper layer with the implementation mechanisms with respect to the following functions:

OAM Alarm management Performance statistics Signaling and user tracing Data backup Board switchover Online loading

Call Processing Subsystem This subsystem processes the MGCP, SIP and explains the VXML script.

The MCCU is responsible for call processing. It is also responsible for the following:

Lower layer interface processing Transport layer protocol processing Call control protocol processing

The VPS explains the VXML script.

Figure 2-7 shows the software structure of the call processing subsystem.


System Description


Figure 2-7 Software structure of the call processing subsystem.

MAC

IP

UDP/TCP

SIP/MGCP/Vxml call protocols

Lower layer interface processing The Ethernet IP interface is the lower layer interface of the MRS6100 call processing subsystem. The MCCU processes the MAC and the IP packets.

Transport layer processing The call processing subsystem processes the transport layer protocols such as the UDP and the TCP. These protocols bear the call control protocols like HTTP at the upper layer over the IP network.

Call control protocol processing The MRS6100 supports the two call control protocols: − MGCP

The MRS6100 processes the MGCP codes in the following steps: Receives the call requests from the SoftSwitch. Connects to the MGCP and the IAD or the AMG terminals. Provides the announcement, digit collecting and recording services for the terminals based on the call requests that are sent by the SoftSwitch.

− SIP The MRS6100 processes the SIP codes in the following steps: Receives the call requests from the AS. Connects to the SIP terminal. Provides the announcement playing, digit collecting or recording services for the SIP terminal based on the call requests that are sent by the AS.

VXML: It encodes the VXML protocol and receives the call request sent by the AS to connect to the terminal. After the connection is set up, the MRS6100 provides the PA, digit collecting or recording for the terminal based on the media operation request sent by the AS.



Media Processing Subsystem This subsystem performs the following tasks:

Managing the media resources of the MRS6100 Controlling and processing the service flows Transcoding the RTP media streams Providing the media processing resources for the external SoftSwitches or AS

Figure 2-8 shows the software structure of the media processing subsystem.

Figure 2-8 Software structure of the media processing subsystem

Media resource management Through this module, the MRS6100 can allocate and manage its resources. This module provides the following functions: − Allocating the channel and conference resources to each SIP/MGCP call − Reserving the resources − Recovering the resources when the connection is released

Service flow control The MRS6100 serves as a media resource pool. It provides the media services for the AS or SoftSwitch. The MRS6100 also controls the service flows to simplify the operation and control on the AS or SoftSwitch.

Media processing The media processing includes: − Transcoding − PA − Digit collecting − Audio mixing − Recording

U-SYS MRS6100 System Description 3 Alarm and Voice Processing Principles


3 Alarm and Voice Processing Principles

About This Chapter


Section Describes

3.1 Alarm Principles The alarm principles

3.2 Voice Processing Principles

The voice processing principles

3 Alarm and Voice Processing Principles U-SYS MRS6100

System Description


3.1 Alarm Principles Alarm management is a part of the fault management system in the OAM center (OMC).

The fault management system includes a complete set of software that is able to detect, isolate and rectify the faults of the managed device modules.

When a fault, which might affect the services, occurs on the MRS6100, the related module generates an alarm and the alarm management module reports the alarm to the operator. The reported alarm helps the operator to take measures to rectify the fault.

3.1.1 Alarm System Structure The alarm system consists of:

Fault detection subsystem Alarm generation subsystem

Fault Detection Subsystem It monitors the running status of the devices many ways, such as hardware detection and software detection, and reports the fault information in time.

Hardware detection is carried out by each board. Its contents are as follows:

Operating status of this board (normal or abnormal; active or standby) Channel fault Online or offline

The operator can detect the logical errors through the software detection. The logical errors cannot be detected through the hardware detection. The contents of software detection are as follows:

Self-loop test of the board CRC check Memory check Data consistency check

Alarm Generation Subsystem It collects the fault information and handles the fault, and then generates detailed alarm information. The information is then listed in many tables to be reported to the maintenance personnel.

The alarm generation subsystem is listed as follows:

Host alarm system BAM alarm service module Alarm console Alarm box

See Figure 3-1.



The host alarm module collects the alarms from other modules of the host and sends them to the BAM. The BAM alarm service module analyzes and processes all the alarms (including those of the BAM) and stores them at the same time. Then, it informs the alarm box of generating the audible and visual alarms to report the alarms and related solutions to the alarm console of the WS.

Figure 3-1 Structure of the alarm generation subsystem

Alarm process

Othermodule

Alarmmodule

Alarmmanagement

system

Alarmbox

Host BAM

WS

As shown in Figure 3-1, the dotted line stands for the connection status of the alarm box. The alarm box can be connected to either the BAM or the WS.

In addition to the alarm box, the alarm information can be obtained from:

Panel of the device on the WS Status indicator of each board

For details of the board status indicator, refer to U-SYS MRS6100 Media Resource Server Hardware Description.

3.1.2 Alarm Levels and Types The alarms of the MRS6100 are divided into three types and four levels.

Alarm Types The alarms that are exported by the alarm console contain the alarm types that indicate the alarm property.

There are three types of alarms in the system.

Fault alarm It indicates a certain status of the equipment. When an alarm occurs, the status is set to a value. When the alarm recovers, the status is set to another value. The severity of a fault alarm is higher than an event alarm. After the fault occurs, it will recover. Thus, the fault alarm corresponds to the recovery alarm. The fault alarm is displayed as "fault" in the report. For example, the data such as the board fault is the fault alarm.

Recovery alarm It refers to the recovery of the fault alarm. It can be regarded as a part of the fault alarm.

Event alarm It refers to an accidental event when the device is running. It is an instant status of the


System Description


running device. The event alarm occurs and cannot be recovered. Some event alarms can be sent again in a given time. For example, board loading is an event alarm.

Alarm Levels Alarm levels are used to identify the severity of the alarms.

According to the severity, the alarms are classified into the following four levels:

Critical alarm The fault that results in a critical alarm affects the services of the system. You must handle the fault in time. If a device or resource cannot be used, you must take measures to recover the fault even if the fault occurs during non-working time.

Major alarm The fault that results in a major alarm affects the quality of service (QoS). You must handle the fault in time. If the quality of a device or resource decreases, you must take measures during work time to recover the quality and all capabilities.

Minor alarm The fault that results in a minor alarm does not affect the QoS. To avoid a serious fault, you need to handle the fault in time or monitor it further.

Warning alarm The fault that results in a warning alarm may affect the services. You must take related measures to handle the fault.

3.1.3 Alarm Box and Alarm Console The alarms of the MRS6100 are displayed through the alarm box and alarm console.

Alarm Box The alarm box uses an open design.

It performs the following functions and features:

The alarm box can provide four levels of visual and audible alarms, that is, critical, major, minor, and warning. The displayed alarms are direct and clear.

The alarm box is used with the alarm console. In this way, the resources of the alarm console are easy to use. The alarm box provides only the alarm levels. The alarm console provides the details of the alarms. The resources of the alarm box and alarm console should be used efficiently.

The networking is flexible. According to your actual needs, the alarm box can be connected to the BAM or the WS.

The serial ports have powerful communication capability. The alarm box has eight serial ports, including four RS-232 serial ports and four RS-422 serial ports. It can externally provide up to five serial ports that can work at the same time. The communication distance of an RS-232 serial port can be up to 80 m and that of an RS-422 serial port can be up to 100 m.

The alarm box provides the function of last words. When the system is down, the alarm box can report the last words in time.

The alarm box provides the alarm voice announcement. The volume of the alarm voice can be manually adjusted. The voice of the major, minor, and warning alarms can be



closed. To ensure normal running of the system, the voice of the critical alarms cannot be closed.

The alarm box provides remote alarms and the alarm voice can be controlled remotely. The alarm box can be connected to a remote sound box. It then sends the alarm information in real time to a remote distance of up to 30 m. Through the remote alarm sound switch, you can enable or disable the alarm sound. Thus, these two functions ensure that the operator can operate and maintain the alarm box remotely.

It is easy to locate the faults and maintain the devices. By the maintenance serial port, you can locate the faults of the alarm box quickly.

The alarm box has a flexible power supply. It provides 220 V AC, 110 V AC and –48 V DC to meet the requirements of the power supply flexibly.

The reliability, security and electromagnetic compatibility (EMC) of the alarm box must pass the environment test, EMC test and electromagnetic interference (EMI) test.

The alarm box is tiny and clear, with direct display and it is easy to install.

Alarm Console The alarm console is a key maintenance platform that is used often. The alarm console reports the alarms that are generated by the MRS6100 in real time. Through the alarm console, the operator can browse, query, and manage the alarms.

The alarm console provides the functions as follows:

Browsing the current alarm and condition in real time Querying types of alarms and dynamically updating the query results Providing the detailed alarm explanation and displaying the alarm handling method Printing the current alarm in the format of detailed alarm explanation in real time Providing the auto-paging function to inform the operator of handling the alarm when an

alarm occurs Controlling the sound, reset, and indicator of the alarm box

3.1.4 Alarm Reporting Path The alarms of the MRS6100 are reported through:

Hardware alarm reporting path Software alarm reporting path

Hardware Alarm Reporting Path All the boards of the MRS6100 are intelligent. They can monitor their own status, running conditions and external interfaces, test and designate the running status, and report the exceptions to the superior devices.

The superior devices can automatically monitor the running status of the lower-level devices, report the detected exceptions to the higher-level ones, and carry out operations, such as blocking the channel, switching over active to standby, reorganizing the system, and restarting the device.

The alarm reporting path of the MRS6100 frame is as follows.

Figure 3-2 shows the hardware faults of the MRS6100 frame and the alarm reporting path.


System Description


Figure 3-2 Hardware alarm reporting path of the MRS6100 frame

CPCI bus

CPCI bus

Serialport bus

Back plane

LAN

BAM WS EW

HSCI

SIUI

MRI

SMUI

ALUI

UPWR

BFII

Alarm reporting path of the front boards (except the ALUI and UPWR): After it collects the alarm information of the frame through the shared resource bus, the SMUI in the MRS6100 frame reports the alarm to the BAM through the LAN Switch. Then, the alarm console of the WS displays the alarm and the alarm box reports the audible and visual alarm.

Alarm reporting path of the back boards: − The related front boards of the SIUI and MRI collect their status and report it to the

SMUI through the shared resource bus. − The HSCI reports its status to the SMUI through the shared resource bus. − The SMUI delivers each back board status to the ALUI through the serial port bus. − The ALUI drives the indicators on its front panel to indicate the status of the back

boards. A board can be in the state of uninstalled, normal and abnormal. − The SMUI reports the alarm to the BAM through the LAN Switch. − The alarm console of the WS displays the alarm and the alarm box reports the audible

and visual alarm. Alarm reporting path of the power board:

− The ALUI collects each power module status through the backplane. − The ALUI drives the indicators on its front panel to indicate the status of the power

modules. At the same time, the ALUI reports the status information to the SMUI through the serial port bus.

− The SMUI reports the alarm to the BAM through the LAN Switch. − The alarm console of the WS displays the alarm and the alarm box reports the audible

and visual alarm. Alarm reporting path of the power distribution frame:

− The SMUI collects the alarm information of the power distribution frame through the RS485 serial port of the SIUI and reports the alarm to the BAM through the Ethernet.

− The alarm console of the WS displays the alarm and the alarm box reports the audible and visual alarm.



Software Alarm Reporting Path The software alarm information includes the following:

Information of in-coordination of signaling procedure between the local office and peer office

Circuit status change due to the operations on the peer office Service processing failure information CPU overload information

Both the host software and the BAM software can generate the software alarm information. The alarms generated by the host software modules (such as the signal processing module and call control module) are sent to the alarm module. Then, the alarm module transfers them to the BAM alarm service module. The alarms that are generated by the BAM are processed by the BAM alarm service module.

3.2 Voice Processing Principles This section describes the principles of the basic functions of the MRS6100.

3.2.1 Announcement Playing This section describes the announcement playing principle of the MRS6100.

Overview Playing announcement (PA) means that the media resource server plays voices to the user terminal, including all types of service voices.

The voice files of the MRS6100 can be stored in the following paths:

Board cache: this cache provides the voice space of 180 M (The static load of G.729 is 3.6 Mbytes/h while the static load of G.711 is 28.8 Mbytes/h.)

File server: the capacity of the file server depends only on the external storage capacity configured.

The file format and coding format of the MRS6100 voice files should meet the following requirements:

File format: wav format Coding format: G.711A/u, G.729A and G.723.1

The MRS6100 supports the following PA types:

Playing variable voices with the parameter being currency, date, time, number, quantity and duration.

Playing voices through multiple languages. Playing voice files of different coding formats in different coding channels.

The PA sequence of MRS6100 voice files is as follows:

Begin with the specified offset of the voice files. Play up to 64 files with maximum length of the file name being 32 bytes according to the

PA sequence.


System Description


Play cyclically without limitation or play according to the set times and interval.

The PA of the MRS6100 has the following features:

Can extract the tone files from the board cache of the BAM. Can load dynamically the voice files defined by the subscriber from the BAM. Can play tone before digit collecting. Can play voice files of digit format without file head (such as raw PCM). But you need

to choose the default value of the coding format. Can send DTMF signal tone including the DTMF signals 0–9 under the instruction of

SoftX3000. Supporting to modify the connection properties during playing announcement, such as

modifying the IP address and announcement playing mode.

Process Under the control of the SoftSwitch or AS, the MRS6100 plays the announcement to the user by using the RTP/RTCP packets through the SIP or MGCP.

The process of the MRS6100 playing the announcement through the SIP or MGCP is described as follows with the help of two examples.

Process 1: Under the control of the SoftSwitch, the MRS6100 plays the announcement to the user by using the RTP/RTCP packets through the MGCP.

To use the MGCP as the control protocol, the MRS6100 must register to the Media Gateway Controller (MGC). Then it can continue the consecutive process.

Figure 3-3 shows the process of playing announcement.

Figure 3-3 An example of the MRS6100 register process

MGC(SoftSwitch)MRS6100

RSIP

RSIP_RSP

Step 1 The MRS6100 sends the RSIP command to the MGC (SoftSwitch), reports that the MRS6100 completes the loading or is restarted, and then requests for register.

Step 2 The MGC responds to the register request of the MRS6100.

After the registration on the MGC, the MRS6100 can play the announcement.

----End

Figure 3-4 shows the process of playing announcement



Figure 3-4 Process of the MRS6100 playing announcement through MGCP

MRS6100MGC（SoftSwitch）

CRCX

CRCX ACK

RQNT(pa/pc/pr)

NTFY(oc/of/digit)

NTFY ACK

RQNT ACK

DLCX

DLCX ACK

(1)

(2)

(3)

(4)

Table 3-1 lists the commands and parameters that are used in the process as shown in Figure 3-4.

Table 3-1 Description of the MGCP commands and parameters

Command or Parameter Description

CRCX Creation connection command

ACK Acknowledgement response command It must be used with the related one.

RQNT Notification request command The MGC uses RQNT to deliver the requests of recording, announcement playing, digit collecting, and operation cancellation to the MRS6100.

NTFY Notification command The MRS6100 uses NTFY to submit the operation results to the MGC.

DLCX Deletion connection command It can be used to delete one or more than one connection on an endpoint.


System Description



pa/pc/pr Parameters pa: announcement playing pc: digit collecting pr: recording

oc/of/digit Parameters oc: call completion of: call failure digit: digit received by the MRS6100

Step 1 The MGC sends the CRCX command to the MRS6100 to request for setting up a connection. After it receives CRCX, the MRS6100 sends an acknowledged command CRCX ACK.

Step 2 After the connection is set up, the MGC sends the RQNT command to the MRS6100. The contents of the request vary with the parameters. For example, pa means playing an announcement. After it receives RQNT, the MRS6100 sends CRCX ACK.

Step 3 After playing the announcement is complete, the MRS6100 sends the NTFY command to the MGC to notify the MGC to return the result. The results vary with different parameters. For example, oc means that playing the announcement is complete. Then, the MGC sends CRCX ACK.

Step 4 The MGC sends the DLCX command to the MRS6100 to request for deleting the connection that was set up. After it receives DLCX, the MRS6100 sends the DLCX ACK command.

----End

Process 2: Under the control of the AS, the MRS6100 plays the announcement to the user by using the RTP/RTCP packets through the SIP.

Figure 3-5 shows the process of the MRS6100 playing announcement through the SIP.



Figure 3-5 Process of the MRS6100 playing announcement through SIP

MRS6100A S

100 Trying

180 Ringing

200 OK

ACK

INFO(result)

200 OK

BYE

200 OK

......

SIP terminal

100 Trying

180 Ringing

200 OK

ACK

BYE

200 OK

INVITE(pa/pc/pr)INVITE(pa/pc/pr)

RTP

Table 3-2 lists the commands and parameters that are used in the process as shown in Figure 3-5.

Table 3-2 Description of the SIP commands and parameters


INVITE When a session INVITE request is initiated, the user is invited to take part in the session. The message body contains a description of the session.

100Tring It is a response message that indicates the trying call.

180 Ringing It is a response message that indicates the ring.

200 OK It is a response message that indicates the final confirmation.

ACK This message confirms that the final response to the INVITE request is received. It can be used only with the INVITE message.


System Description



INFO The AS can deliver the operation requests (pa, pc, pr are used to cancel the operations) to the MRS6100 through the expansion of the BODY part of the INFO message. The MRS6100 can also submit the operation results to the AS through the INFO message.

BYE It indicates ending the session.

pa/pc/pr They are parameters: pa means playing an announcement. pc means collecting digits. pr means recording.

Step 1 The AS sends the INVITE request to the MRS6100. The contents of the request vary with the parameters. For example, pa means playing an announcement.

Step 2 The MRS6100 returns 100 Trying to the AS. That means the MRS6100 has received the request message and is processing it.

Step 3 The MRS6100 sends 180 Ringing to the AS. Then the AS sends it to the remote calling SIP terminal (user terminal that uses SIP for communication).

Step 4 The MRS6100 sends the 200 OK message, which means the request is accepted.

Step 5 The AS sends the ACK message to the MRS6100 to acknowledge that the response to the INVITE request of the MRS6100 has been received.

Step 6 After playing the announcement is complete, the MRS6100 sends the INFO message to submit the result to the AS.

Step 7 The AS returns the 200 OK message as a response, indicating that it received the INFO message.

Step 8 The AS sends the BYE message to request for releasing the connection.

Step 9 The MRS6100 returns the 200 OK response, which indicates that the connection has been released.

----End

3.2.2 Digit Collecting This section describes the digit collecting principle of the MRS6100.

Overview Digit collecting means that the MRS6100 extracts digits from the information sent by the users.

The MRS6100 can collect digits only in the following two ways:

DTMF: The digits of the DTMF signals consist of two frequencies. If you press a key on the dual audio phone set, the phone set sends the signals containing two frequencies.



RFC2833 (RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals): It is used for the RTP loading format of the DTMF digit signals, telephone speech, and telephone signals.

FSK: The MRS6100 sends and receives digital signals in the binary FSK of continuous phases.

Process Under the control of the SoftSwitch or AS, through SIP or MGCP, the MRS6100 detects the RTP/RTCP packets that are sent by the users and collects the digits. Then, the MRS6100 sends the digits to the SoftSwitch or AS through SIP or MGCP.

The process of digits collecting is similar to that of announcement playing.

For details, see "Process" in section 3.2.1 "Announcement Playing."

3.2.3 Recording This section describes the recording principle of the MRS6100.

Overview Recording is to reserve the audio information of the users, including:

Speech message Conference recording

The recording files of the MRS6100 are stored in the following devices:

FTP server NFS server

The recording files of the MRS6100 are in the following formats:

File format: wav format Coding format: G.711A and G.729A

The MRS6100 provides the following two recording methods:

Channel recording Site announcement playing

Process Under the control of the SoftSwitch or AS, through SIP or MGCP, the MRS6100 saves the audio information that is sent by the users on the file server as the voice files.

The process of recording is similar to that of announcement playing.

For details, see "Process" in section 3.2.1 "Announcement Playing."


System Description


3.2.4 Audio Mixing This section describes the audio mixing principle of the MRS6100.

Overview Audio mixing means that each user can clearly hear and distinguish others' speech when more than one user is speaking in a conference. In this case, the speakers cannot hear their own voice.

Each telephone that is connected in the telephone conference system occupies a channel.

A user who uses a telephone in the system to take part in the conference is called a participant.

At a certain moment, the participant with the most voice energy is called the primary party, in turns the secondary party, and so on.

The participant who does not speak but only listen is called a listener.

Audio mixing refers to the linear addition of the signals.

For example, if the voice signal of the participant 1 is "x1 (n)" and that of the participant 2 is "x2 (n)", the audio mixing of these two participants is "x1 (n) + x2 (n)".

There are two methods for audio mixing. They are listed as follows:

Method 1: Find two participants with the loudest voice in the conference site. Send the voice energy of the primary party to the secondary party and send the voice energy of the secondary party to the primary one. Then, the voice volume that other participants hear is the half volume of the mixing voice of the primary and the secondary party.

Method 2: Mix the voices of all the participants. Subtract the voice of a participant from the mixed voice. After auto-adaptation gains control, send the subtracted voice to the participant. In this way, the participant can hear the voice of others.

At present, the MRS6100 uses the second method.

Conferencing Process Under the control of the SoftSwitch or AS, through SIP or MGCP, the MRS6100 mixes the voice data of multiple users to provide the conference function.

The process of conferencing is similar to that of announcement playing. The difference is that multiple conference channels must be set up in the beginning.

For example, the MRS6100 can realize the conference function through MGCP.

Before the conference is set up, the MRS6100 must register to the MGC. The register process is similar to the process of announcement playing. For details, see Figure 3-3.

After registering to the SoftSwitch, the MRS6100 can carry out the conference process.

See Figure 3-6.



Figure 3-6 Conference process of the MRS6100 through MGCP

MRS6100MGC(SoftSwitch)

CRCX

CRCX ACK

RQNT(pa/pc/pr)

NTFY(oc/of/digit)

NTFY ACK

RQNT ACK

DLCX

DLCX ACK

(1)

(n+1)

(n+2)

(n+3)

CRCX

CRCX ACK

(2)

CRCX

CRCX ACK

(n)

For the details on the commands and parameters shown in Figure 3-6, see Table 3-1.

From step (1) to step (n), the MGC sends the CRCX command to the MRS6100 to create multiple conference channels. After receiving CRCX, the MRS6100 sends the command CRCX ACK.

The steps (n+1) to (n+3) are similar to the steps (4), (5), and (6) in the announcement playing process. For details, see "Process" in section 3.2.1 "Announcement Playing."

U-SYS MRS6100 System Description 4 Networking and Applications


4 Networking and Applications

About This Chapter


Section Describes


The media resource provided by the MRS6100

4.2 Providing Multimedia Services

The multimedia service provided by the MRS6100

4.3 Providing IVR Conference Services

The IVR conference service provided by the MRS6100

4 Networking and Applications U-SYS MRS6100

System Description



The MRS6100 can act as the media server in:

SoftX3000 end office Traditional end office

Under the control of the SoftX3000, the MRS6100 provides the resources of:

Signal tone Conference Digit collecting

Figure 4-1 shows the application of the MRS6100 in the fixed network end office.

Figure 4-1 Networking application of the MRS6100 in the fixed network end office

iOSS ENIP MRS6100

UMG

MGCP

AMG

SoftX3000RTP/RTCP

U-PATHIAD

. . .

IP Core

In this application, MRS6100 supports to collecting digits during playing announcement through the SET RBTCOPY command. The function is defaulted to unavailable.

U-SYS MRS6100 System Description 4 Networking and Applications


4.2 Providing Multimedia Services The MRS6100 can be used with the SoftX3000 and multimedia devices for networking. They provide the multimedia services that combine audio and video.

See Figure 4-2.

At present, the MRS6100 plays the video files of private or self-defined format (H.263) and supports the voice formats, such as:

G.711 A-law G.711 µ-law G.729A G.729B G.723.1

Figure 4-2 Networking application of the MRS6100 in multimedia RBT service

iOSS AS MRS6100

UMGAMG

SoftX3000 RTP/RTCP

U-PATHIAD

. . .

IP Core

FTP/NFS Server

SIP/Vxml FTP/NFS

4 Networking and Applications U-SYS MRS6100

System Description


4.3 Providing IVR Conference Services The MRS6100 can be used with the devices such as the SoftX3000 and MediaX3600 for networking. They provide the multimedia services that combine voice and video.

Refer to Figure 4-3.

The MRS6100 supports the functions, such as:

Reserving, attending, or canceling a conference Modifying the speech authority of the participants in the conference

Figure 4-3 Networking application of the MRS6100 in the IVR conference services

MediaX3600 MRS6100

UMGAMG

SoftX3000 RTP/RTCP

U-PATHIAD

. . .

IP Core

FTP/NFS Server

SIP FTP/NFS

U-SYS MRS6100 System Description 5 OAM System


5 OAM System

About This Chapter


Section Describes

5.1 Overview The OAM system hardware and software structure

5.2 BAM The basic components and features of the BAM

5.3 OAM Workstation The OAM workstation

5.4 Emergency Workstation The usage of emergency workstation

5.5 Communication Gateway Software

The communication method between the BAM and WSs

5 OAM System U-SYS MRS6100

System Description


5.1 Overview The OAM system of the MRS6100 includes the hardware and software systems. It provides the OAM functions for the entire system.

System Hardware Architecture The hardware of the MRS6100 OAM system consists of the following:

BAM server WSs EWS

The hardware system is responsible for the OAM functions of the entire system.

Figure 5-1 shows the hardware architecture of the MRS6100 terminal system.

Figure 5-1 Hardware architecture of the MRS6100 terminal system

Lan Switch

WS

BAM Server Emergency Server

To NetworkManagement Center

WAN

Alarm Box

WS

MRS6100

System Software Structure The software of the MRS6100 terminal system consists of:

Local maintenance system (BAM, WS and telecommunication gateway) NMS

The local maintenance system is a mandatory part in the MRS6100 terminal system while the NMS is an optional one.

Figure 5-2 shows the logical structure of the MRS6100 terminal system.



Figure 5-2 Logic structure of the MRS6100 terminal system

For the working principles of the NMS software, refer to the related user manual.

The BAM communicates with the host to manage the OAM of the system.

The BAM and the NMS interact through the standard MML to realize the centralized maintenance and operation of MRS6100 devices. The NMS provides an access interface to its upper NMS.

The BAM and WSs communicate with each other by using TCP/IP through Ethernet. They can also communicate by using the serial port through the gateway.

5.2 BAM The BAM is the key device of the MRS6100 OMS. It works as a bridge between the OMS and the terminals.

The BAM sends the local or remote OAM terminal commands to the host. The host then directs the response to the related terminal devices to store or forward the alarm messages or service statistics.

The BAM software is used to manage and maintain the MRS6100, providing:

Running data Configuration data Alarm information

The MRS6100 provides a complete set of practical OAM methods and tools in order to:

Ensure the normal running of the system Minimize the business cost


System Description


Improve the quality of communication service

BAM Networking The BAM is the core component in the local OAM system.

As the TCP/IP server, the BAM responds to the connection requests from the WS clients, creates connections, analyzes and processes the commands from the clients.

At the same time, the BAM responds to the connection requests from the equipment, creates connections, receives and processes the data loading requests and alarms.

The BAM provides two network ports to connect the core LAN Switches to the HSCIs in the basic frame.

These two network ports are in the same network segment (two closed LANs connected to the equipment) with the active or standby SMUI, one for each. The connection to a client belongs to a different network segment (an open OAM LAN).

The three network segments are not visible to each other. In this way, the network security is ensured to a certain extent and the dependence on the system security is reduced.

Figure 5-3 shows the network configuration of the BAM.



Figure 5-3 BAM network configuration

NIC1 NIC2

NIC3

NIC1 NIC2

NIC3

LAN

WS1

BAM server Emergency WS

MRS6100 frame

SMUI

SMUI

SIUI

SIUI

HSCI

HSCI

WS 0

Front

Back

BAM: Back administration module WS: Work station NIC: Network interface card LAN: Local area network

The EAM board carries out the BAM function of the MRS6100. The NIC1 and the NIC2 of the BAM (EAM board) communicate with other boards through the MRS6100 internal switch Ethernet.

Fixed IP address of the NIC1: 172.20.200.0 Fixed IP address of the NIC2: 172.30.200.0

Components of the BAM Software Figure 5-4 shows the components of the BAM software.


System Description


Figure 5-4 BAM software components

Warn

Maintain

Dataman

Stats

SecurityManager

BAMService

Exchange

SQL Server

Device

BAMSNTPClient

MML Server

LogMan

MML GUI

WS

Monitor

Monitor

Shake hand

The BAM software is composed of the following parts:

SQL Server It stores all kinds of service data and provides database for all kinds of service servers.

Logman It is the operation log process. It records the operation log and provides the log query and malicious operation tracing function for the clients.

MML Server It communicates with the WS, manages the operator rights, parses the WS input commands, and delivers the WS commands.

Exchange It is the communication module between the BAM and the devices. It provides the program and data loading functions and delivers messages that are returned from the devices.

Security Manager It is the management module of the entire device software. It manages other service processing modules, including monitoring their running status.

MrsBamService It monitors the Security Manager and restarts the BAM server at the right time.

Stats It is the performance statistics process. It processes the performance statistics data, such as creating the performance statistics tasks and querying the results.

Warn It is the alarm process. It processes the equipment alarms and BAM alarms, provides the alarm reports and alarm query functions for the WSs, and drives the alarm box.

Maintain It is the maintenance process. It processes the maintenance commands, such as patching the programs and tracing signals.



SNTPClient It is the SNTP Client. It collects the server time and synchronizes the client time.

Dataman It is the data configuration process. It is to configure and back up the data, such as processing the call prefixes and equipment data.

Features of the BAM High reliability

A carrier-class SQL Server is used as a large database system. The programs are designed with multiple layers and self-monitoring functions. This is to back up and recover data easily, and to ensure the data security.

Client/Server structure The BAM software is integrated with the communication server and database server. All kinds of maintenance tasks are carried out in Client/Server mode. The software supports the local and remote maintenance tasks to set the data at the same time. Maintenance can be carried out fast.

Remote maintenance The MRS6100 supports rich networking modes. It can be connected to a remote maintenance system through the Internet.

MML command line and GUI interface It provides the MML command line interfaces that conform to the ITU-T standard, and also provides GUIs. − MML: A user can configure the data, manage the performance, and perform OAM on

the MRS6100 through the MML. − GUI: A user can manage the alarm, trace the signals and interfaces, and observe the

device status through the GUI. Openness

It uses the TCP/IP protocol and the distributed database that conforms to the ISO/OSI standard. The MRS6100 can be connected to all kinds of large databases with transparent access to provide many value-added services and IN-supported services. When it is necessary, a user can install the peripheral devices such as the optical disk drive, disk array, tape drive and printer. In addition, it is easy to add more OAM terminals.

Optimal security measures − The log function of the BAM enables the operators to record all the operations. − The MRS6100 isolates the private network from the public network to access host

screening from outside. − The relation among the configured data is not visible to the users, which ensures data

consistency. − The data is backed up periodically, which improves the ability to resist the

emergencies.


System Description


5.3 OAM Workstation The OAM workstation (OAM WS) is installed with Windows 2000 Server, Windows 2000 Professional or Windows XP and the MRS6100 OAM client software runs on it. It communicates with the BAM to achieve the local and remote OAM functions. The WS and the BAM can communicate through the LAN, wide area network (WAN), or serial port.

The OAM terminal of the MRS6100 and the BAM works in the client/server mode. That is, the MRS6100 OAM terminal functions as a client to provide the OAM interfaces for the users.

The OAM terminal software provides:

MML-based graphical terminals Multiple window operation interfaces Many OAM methods, including the service maintenance system, the alarm console, and

the performance statistics report system

Service Maintenance System The MML-based graphical terminal software is composed of the following functional modules:

MML navigation tree module The MML navigation tree provides an operator with the basic operation command sets of the MRS6100. The command sets with the same properties are classified on the same branch of the navigation tree. By expanding the MML command tree, the operator can find a number of MML command nodes. Double-click an MML command node to access the related command input window and prompt window. The operator needs to only enter a command and set the parameters. Then the MML module generates a command report to deliver. Through the MML module, the operator can perform many operations on the host, such as: − Data configuration − Performance management − User management

Maintenance navigation tree module The maintenance navigation tree provides an operator with the maintenance command sets. The maintenance can be performed by tracing and to device panel. The maintenance navigation tree module provides the following functions: − Maintenance management

The system provides several maintenance control methods such as query, display, switchover, reset, isolation, block and activation. With these methods, you can manage and maintain the hardware, system resources, and so on.

− Tracing management The system provides message tracing and Trace Route functions. Through these functions, the system traces and monitors the messages between modules in MRS6100 or between MRS6100 and external devices, and checks the routing.



With this function, you can find the connection failure in MRS6100 system, and know the signaling messages and network routing. In addition, the trace messages can be saved and printed for later reference.

− Signaling analysis The system provides the embedded signaling analysis tool developed by Huawei. The software works with the trace management to analyze the signaling interaction processes in online or offline mode. The system provides strong maintenance approach to locate the fault causes quickly and optimize the signaling link configuration.

Alarm Console The alarm console reflects the alarms that are recorded in the BAM in real time.

Through the alarm console, an operator can query and browse all the alarms, and also manage the alarms.

The alarm information includes the alarm name, generation (and recovery) time, alarm level, location information, and recovery suggestions.

Performance Statistics Report System The performance statistics system measures and collects the services and objects of all kinds of call types.

By analyzing the statistic data, the system knows the running of the SoftSwitch, the gateways, the entire network and the terminals. Thus, it provides the basic data for planning, designing, operating, managing, and maintaining the telecom network.

5.4 Emergency Workstation The EWS software is installed on the EWS. It can automatically synchronize (back up) the data on the BAM server through the network. By default, a synchronization request is initiated every four hours.

Once the BAM server stops running, the EWS can restore the BAM database by using these backup data, and serve as the BAM server temporarily. When the BAM server recovers, the EWS is switched over to the original working mode.

Thus, the EWS is used as the backup device for the system BAM data.

5.5 Communication Gateway Software Beside the Ethernet, the gateway provides another communication method between the BAM and WSs, that is, serial port communication.

To achieve such communication, you can interconnect the BAM and WSs through the serial port cables.

The communication gateways include

MRS6100 Server Gateway Tool MRS6100 WorkStation Gateway Tool.


System Description


They perform the protocol conversion between the TCP/IP network port and the RS232 serial port. This serial port tool works only when the alarm box is configured.

U-SYS MRS6100 System Description 6 Reliability and Security Design


6 Reliability and Security Design

About This Chapter


Section Describes

6.1 Reliability Design The two ways of reliability design

6.2 Security Design The four parts of security design

6 Reliability and Security Design U-SYS MRS6100

System Description


6.1 Reliability Design The reliability of the MRS6100 is designed in two ways, that is, hardware and software.

6.1.1 Hardware Reliability The MRS6100 is structured in a distributed manner, and measures are taken to ensure the reliability of the hardware system.

For example, the boards in use are running in the active and standby mode, in the load-sharing mode and with redundant configuration.

Quality electronic components are used in the MRS6100, and they are carefully selected. They should have already passed the aging test.

Distributed Processing In the MRS6100, the distributed processing is fulfilled by means of the modularized functions. The functions of the modules are independent, and controlled by different processors. The fault of one processor does not affect the normal running of the entire system.

Multi-Processor Redundant Technique The key components of the MRS6100 use the multi-processor redundant technique.

For example, the SMUI and MCCU boards use the active and standby processor running mode. In normal conditions, the active processor controls the running of the modules and the standby one keeps synchronized with the active one in real time. When the active processor is faulty, the standby one is brought into service at once. The standby one replaces the active one to control the running and operation of the modules to avoid service interruption of the system.

Board-Level Hot Standby Mode The board-level hot standby mode is often used in the telecom products to improve the reliability of the system.

This method uses the active and standby mode.

It is applicable to:

Service processing Device management Resource management

Mutual-Aid Working Mode Mutual-aid work is also known as load-sharing. With the mutual-aid work mode, two or more boards share the related functions during the normal working.

Once one of the boards is faulty, other boards take over the task of the faulty board on the condition that certain performance parameters such as the call loss are guaranteed.



6.1.2 Software Reliability The MRS6100 software uses a hierarchical modularized architecture with:

Protective performance Error tolerance capability Fault detection

Protection Performance All the stages of the development of the MRS6100 strictly follow the Capability Maturity Model (CMM) procedures, such as:

Requirement analysis System design Software test

During the MRS6100 development, some measures are taken to improve the reliability of the software, such as:

Code walk-through Review Inspection Unit test System test Other useful quality assurance measures

Error Tolerance Capability The MRS6100 can effectively prevent minor software faults that affect the entire system by the following means:

Key software resource timing detection Real time task monitoring Storage protection Data check

In this way, it greatly improves the error tolerance of the system.

Fault Detection and Handling The MRS6100 can automatically detect and diagnose both software and hardware faults.

In this case, the faulty components can be automatically switched, restarted and reloaded to avoid service interruption.

6 Reliability and Security Design U-SYS MRS6100

System Description


6.2 Security Design The security design of the MRS6100 includes:

Network security System protection Data security Operation security

6.2.1 Network Security Except the network services in use (such as SIP, MGCP and RTP/RTCP), the MRS6100 closes the network services not in use, so as to prevent illegal users from entering.

The NMS of the MRS6100 provides a strict user authentication function. Only the users who pass the authentication and are granted with legal rights can perform normal network management on the MRS6100.

6.2.2 System Protection The MRS6100 system provides the following protection measures.

Protection Against Exceptions The system provides the following protection measures against exceptions, including the following conditions:

Error prevention measures Voltage protection (over high or over low) Adaptation to the environment (especially to the hot stress) Protection measures against power-off during loading

Multiple Alarm Processing Mechanisms The system provides the following alarm processing mechanisms:

It generates the fault alarms in time through the panel indicators and alarm box to ensure normal running of the system.

It generates an alarm to the OAM personnel through the NM mode, so as to help the personnel to operate and maintain the system through the console or the NM WS.

Strong Error Tolerance Ability The system can process and recover the exception when it occurs.

Redundant Inter-Board Communication Design The system uses the redundant inter-board communication design to prepare for the emergency.



6.2.3 Data Security The MRS6100 provides a strict data protection mechanism:

The configured boards are provided with strict real-time software backup. If the active board crashes, the standby one switches to active and the board program and data on it take effect at once.

The database of the active processor is backed up to the Flash memory, so that the active processor can obtain data from the Flash memory and restart quickly.

The BAM initiates a CRC check of host data regularly. When the BAM detects that the data between the host and BAM are not the same, it initiates data setting to the host. If the data setting fails for specified number of times, the system generates an alarm to prompt the operator to restore data as soon as possible.

6.2.4 Operation Security The MRS6100 ensures the system operation security with respect to the following:

It strictly restricts the access authority of operation and maintenance personnel. The user name and password are required when one accesses the system, and the system makes a record of it every time. According to the requirements of maintenance and operation personnel, the operation authority can be classified.

All important operations are recorded in the operation log, which helps to locate and trace the historical operation.

The prompt alarms are available against the system abnormality due to error operations. An excellent check function is available for the configuration activities of an operator

and illegal configurations are refused. The maintenance and operation system can protect user names and passwords. If a user

does not make any operation for a specified period, the system logs off to prevent the access of unauthorized users.

U-SYS MRS6100 System Description 7 Technical Specifications and Environment Requirements


7 Technical Specifications and Environment Requirements

About This Chapter


Section Describes

7.1 Technical Specifications The technical specifications of the MRS6100

7.2 Environment Requirements

The environment requirements of the MRS6100

7 Technical Specifications and Environment Requirements U-SYS MRS6100

System Description


7.1 Technical Specifications The technical specifications of the MRS6100 include:

System capacity System processing capability Physical parameters Reliability indexes Power supply and power consumption

7.1.1 System Capacity In different services, and encoding and decoding modes, the maximum channels of the system are the same.

See Table 7-1.

Table 7-1 System capacity

Function Maximum Channels of the System

G.711 Conferencing Bridge 7200

G.711 IVR Server 7200

G.711 Announcement Server 7200

G.729 Conferencing Bridge 7200

G.729 IVR Server 7200

G.729 Announcement Server 7200

G.723.1 Conferencing Bridge 7200

G.723.1 IVR Server 7200

G.723.1 Announcement Server 7200

7.1.2 System Processing Capability The system processing capability includes:

Processing capability Delay probability

Processing Capability The processing capability of the MRS6100 is 1.296 M BHCA.



Delay Probability In this service model, when the MRS6100 receives a request of the announcement message and is busy, the delay of the message (the time elapsed before the MRS plays the announcement) is:

0.5 seconds 95% of the message is provided within 0.5 seconds.

2 seconds 99.9% of the message is provided within 2 seconds.

5 seconds 99.99% of the message is provided within 5 seconds.

7.1.3 Physical Parameters Table 7-2 lists the physical parameters of the N68-22 cabinet.

Table 7-2 N68-22 Cabinet Physical parameters

Item Parameter or Type

Cabinet type N68-22 cabinet (conforming to the IEC297 standard and meeting the NEBS earthquake-proof requirements)

Cabinet dimensions (height × width × depth)

2200 mm × 600 mm × 800 mm

Available height of cabinet 46 U (1U = 44.45 mm)

Bearing capacity of the floor in the equipment room

600 kg/m2

Table 7-3 lists the physical parameters of the N610-22 cabinet.

Table 7-3 N610-22 Cabinet Physical parameters

Item Parameter or Type

Cabinet type N610-22 cabinet (conforming to the IEC297 standard and meeting the NEBS earthquake-proof requirements)

Cabinet dimensions (height × width × depth)

2200 mm × 600 mm × 1000 mm

Available height of cabinet 46 U (1U = 44.45 mm)

Bearing capacity of the floor in the equipment room

600 kg/m2


System Description


7.1.4 Reliability Indexes Table 7-4 lists the reliability indexes of the MRS6100.

Table 7-4 Reliability indexes of the MRS6100

Item Specification

Repair rate 0.3%

Usability 99.99983%

Mean time between failures (MTBF) 53 years

Mean time to recovery (MTTR) 48 minutes

Pause time 0.89 minutes/year

7.1.5 Power Supply and Power Consumption This section describes the technical specifications on the power supply of the MRS6100.

Standard Configured Power Supply Rated voltage: –48 V DC

Voltage fluctuations: –57 V to –40 V

Power Supply Configured in the Commonwealth of Independent States Rated voltage: –60 V DC

Voltage fluctuations: –51 V to –69 V

System Power Consumption Table 7-5 lists the power consumption of the function frames or devices in the MRS6100 cabinet.

Table 7-5 MRS6100 power consumption

Function Unit Power Consumption (W)

Configuration

Power distribution frame

≤ 20 Single power distribution frame

Basic frame ≤ 610 (MCCU + BFII) × 2 + (MSU + MRI) × 10 + (SMUI + SIUI) × 2 + HSCI × 2 + ALUI × 1 + UPWR × 4 + Fan frame

Extended frame ≤ 680 (SMUI + SIUI) × 2 + HSCI × 2 + (MSU + MRI) × 12 + ALUI × 1 + UPWR × 4 + Fan frame



Function Unit Power Consumption (W)

Configuration

Extended frame (with VPS board)

≤ 450 (SMUI + SIUI) × 2 + HSCI × 2 + (VPS + VPI) × 12 + ALUI × 1 + UPWR × 4 + Fan frame

BAM ≤ 250 Adopts IBM server or HP server

VPS (Vxml Parser Server) server

≤ 250 Adopts IBM server or HP server

LCD (Liquid Crystal Display)

≤ 50 –

LAN Switch ≤ 30 Adopts Huawei Quidway S3528G LAN Switch

Examples of Calculating the Power Consumption The two examples for calculating the power consumption are as follows:

Basic cabinet (in full configuration, including a basic frame and an extended frame) The maximum power consumption = Power distribution frame × 1 + Basic frame × 1 + Extended frame × 1 + LCD × 1 + LAN Switch × 2 = 20 × 1 + 599 × 1 + 680 × 1 + 50 × 1 + + 30 × 2 =1409 W

Extended cabinet (full configuration, including one extended frame without the board VPS) The maximum power consumption = Power distribution frame × 1 + Extended frame × 1 = 20 × 1 + 680 × 1 = 700 W

Extended cabinet (full configuration, including one extended frame with the board VPS) Maximum power consumption = PDF x 1 + extended frame x 1 + extended frame (with the VPS board) + LCD x 1 = 20 x 1 + 680 x 1 +450 x 1 + 50 = 1200 W

7.1.6 Performance Statistics Indexes The performance statistics of the MRS6100 has the following features:

The system can support up to 128 traffic tasks at the same time. The system can store up to 26,000 performance statistics records. The system can store the performance statistics for up to three months. The host can respond to the requests of the BAM in five seconds.

7.1.7 Audio Conference Indexes The MRS6100 provides the IP based audio conference and has the following features:

Each conference supports up to 120 attendees. The MRS6100 supports up to 2,400 three-party conferences.


System Description


The MRS6100 provides the functions of recording and playing announcement of the entire conference.

The MRS6100 provides the functions of recording, playing announcement, and collecting digits of an attendee.

The MRS6100 provides the conference enhancement control.

7.2 Environment Requirements This section describes the indexes in:

Storage environment Transportation environment Operating environment

7.2.1 Storage Environment The applicable standard: EUROPEAN ETS 300 019-1-1"not temperature-controlled storage"

Climate Table 7-6 lists the required climate.

Table 7-6 Climate requirements

Item Range

Height above sea level ≤ 5,000 m

Atmospheric pressure 70 kPa–106 kPa

Temperature –40°C to +70°C

Temperature change rate ≤ 1°C/min

Relative humidity 10%–100%

Solar radiation ≤ 1,120 W/s²

Heat radiation ≤ 600 W/s²

Wind speed ≤ 30 m/s

Biological Environment To meet the biological environment required by MRS6100, avoid the following:

The increase of epiphyte, mildew and other microorganism Rodent animals, such as mice



Air cleanness The storage environment should be free from explosive dust, conductive dust, magneto-conductive dust, or corrosive dust

Table 7-7lists the concentration of the mechanically active materials.

Table 7-7 Concentration of the mechanically active materials

Mechanically Active Material

Unit Concentration Diameter

Suspending dust mg/m³ ≤ 5.00 ≤ 75 μm

Deposited dust mg/m²·h ≤ 20.0 75 μm–150 μm

Sand mg/m³ ≤ 300 150 μm–1,000 μm

Table 7-8 lists the concentration of the chemically active materials.

Table 7-8 Concentration of the chemically active substances

Chemically Active Material

Unit Concentration

SO2 mg/m³ 0.30–1.00

H2S mg/m³ 0.10–0.50

NO2 mg/m³ 0.50–1.00

NH3 mg/m³ 1.00–3.00

Cl2 mg/m³ 0.10–0.30

HCl mg/m³ 0.10–0.50

HF mg/m³ 0.01–0.03

O3 mg/m³ 0.05–0.10

Mechanical Stress Table 7-9 lists the indexes of the mechanical stress.

Table 7-9 Mechanical stress indexes

Item Sub-item Range

Offset ≤ 7.0 mm –

Accelerated speed – ≤ 20.0 m/s²

Sinusoidal vibration

Frequency range 2 Hz–9 Hz 9 Hz–200 Hz


System Description


Item Sub-item Range

Impulse response spectrum II

≤ 250 m/s² Non-stable impulse

Payload ≤ 5 kPa

NOTE Impulse response spectrum: the maximum accelerated speed response curve generated by the equipment under the specified impulse motivation Impulse response spectrum II: the duration of half-sine impulse response spectrum is 6 ms. Payload: the bearable pressure from the upper piled equipment with package in prescribed piling mode

Earthquake-proof Performance The MR6100 can resist the earthquake of 7 to 9 levels.

7.2.2 Transportation Environment Applicable standard: EUROPEAN ETS 300 019-1-2 "Class 2.3 PUBLIC transportation"

Climate Table 7-10 lists the required climate.

Table 7-10 Climate requirements.

Item Range



Temperature –40°C to +70°C

Temperature change rate ≤ 3°C/min

Relative humidity 10%–100%

Solar radiation ≤ 1,120 W/s²



Rain ≤ 6 mm/min


The increase of epiphyte, mildew and other microorganism



Rodent animals, such as mice

Air Cleanness The storage environment should be free from explosive dust, conductive dust, magneto conductive dust, or corrosive dust.

Table 7-11 lists the concentration of the mechanically active materials.




Suspending dust mg/m³ No requirement ≤ 75 μm


Sand mg/m³ ≤ 100 150 μm–1,000 μm


Table 7-12 Concentration of the chemically active materials

Chemically Active Material

Unit Concentration

SO2 mg/m³ ≤ 1.00

H2S mg/m³ ≤ 0.50

NO2 mg/m³ ≤ 1.00

NH3 mg/m³ ≤ 3.00

Cl2 mg/m³ ≤ 0.30

HCl mg/m³ ≤ 0.05

HF mg/m³ ≤ 0.03

O3 mg/m³ ≤ 0.10


System Description


Mechanical Stress Table 7-13 lists the requirements on the mechanical stress.

Table 7-13 Mechanical stress requirements

Item Sub-item Range

Offset ≤ 7.5 mm – –


≤ 40.0 m/s²



200 Hz–500 Hz

Spectrum density of accelerated speed

10 m²/s³ 3 m²/s³ 1 m²/s³ Random vibration


200 Hz–500 Hz



Payload ≤ 10 kPa

NOTE Impulse response spectrum: It refers to the maximum accelerated speed response curve generated by the equipment under the specified impulse motivation. Impulse response spectrum II means that the duration of half-sine impulse response spectrum is 6 ms. Payload: It refers to the bearable pressure from the upper piled equipment with package in prescribed piling mode.


7.2.3 Operating Environment This section describes the requirements on the environment where the MRS6100 works.

Climate Table 7-14 and Table 7-15 list the climate requirements.

Table 7-14 Temperature and humidity requirements

Temperature Relative Humidity Equipment

Working for a long term

Working for a short term



MRS6100 +5°C to +45°C –5°C to +55°C 5%–85% 5%–95%



Temperature Relative Humidity Equipment





NOTE The measurement points of the SoftX3000 refer to the values measured 1.5 meters above the floor and 0.4 meter away from the front of the SoftX3000 rack when there are no protection panels in the front and back of the SoftX3000 rack. Short term means that the consecutive working duration is not more than 48 hours and that the continuous working duration of a year is not more than 15 days.

Table 7-15 Other climate requirements

Item Range



Temperature change rate ≤ 5°C/h

Solar radiation ≤ 700 W/s²



IP level IP50


The increase of epiphyte, mildew and other microorganism Rodent animals, such as mice

Air Cleanness The storage environment should be free from explosive dust, conductive dust, magneto conductive dust, or corrosive dust.

Table 7-16 lists the concentration of the mechanically active materials.




Dust particle particle/m³ ≤ 3 × 105 ≥ 5 μm

Suspending dust mg/m³ ≤ 0.2 ≤ 75 μm


System Description





Sand mg/m³ ≤ 30 150 μm–1,000 μm


Table 7-17 Concentration of the chemically active materials

Chemically Active Material Unit Concentration

SO2 mg/m³ 0.30–1.00

H2S mg/m³ 0.10–0.50

NO2 mg/m³ 0.50–1.00

NH3 mg/m³ 1.00–3.00

Cl2 mg/m³ 0.10–0.30

HCl mg/m³ 0.10–0.50

HF mg/m³ 0.01–0.03

O3 mg/m³ 0.05–0.10

CO mg/m³ ≤ 5.0

Mechanical Stress Table 7-18 lists the requirements on the mechanical stress.

Table 7-18 Requirements on the mechanical stress

Item Sub-item Range

Offset ≤ 3.5 mm –






Payload 0



Item Sub-item Range

NOTE Impulse response spectrum: the maximum accelerated speed response curve generated by the equipment under the specified impulse motivation Impulse response spectrum II: the duration of half-sine impulse response spectrum is 6 ms. Payload: the bearable pressure from the upper piled equipment with package in prescribed piling mode


U-SYS MRS6100 System Description 8 Compliant Standards


8 Compliant Standards

About This Chapter


Section Describes

8.1 PRC Standards The released standards of China

8.2 ITU-T Standards ITU-T standards

8.3 IEEE Standard IEEE 802.3u

8.4 IETF Standards IETF standards

8 Compliant Standards U-SYS MRS6100

System Description


8.1 PRC Standards The MRS6100 complies with the following standards released by the Ministry of Information Industry of the People’s Republic of China:

YDC 003-2001 Overall Technical Specifications for SoftSwitch Devices Overall Technical Specifications for the Media Resource Server

8.2 ITU-T Standards The MRS6100 complies with the following ITU-T standards:

ITU-T H.263 ITU-T H.264 ITU-T G.711 (µ-law and A-law) ITU-T G.711 Appendix A ITU-T G.729 ITU-T G.729 Annex A ITU-T G.729 Annex B ITU-T G.723.1 ITU-T G.723.1 Annex A

8.3 IEEE Standard The MRS6100 complies with the IEEE standard, that is, IEEE 802.3u.

8.4 IETF Standards The MRS6100 complies with the following IETF standards:

IETF RFC0768 User Datagram Protocol (UDP) IETF RFC0791 Internet Protocol (IP) IETF RFC0792 Internet Control Message Protocol (ICMP) IETF RFC0793 Transmission Control Protocol (TCP) IETF RFC0959 File Transfer Protocol (FTP) IETF RFC 3530 Network File System (NFS) version 4 Protocol IETF RFC 3261, Session Initiation Protocol (SIP) IETF RFC 3435, Media Gateway Control Protocol (MGCP) IETF RFC 1889, Real-time Transport Protocol (RTP) and RTP Control Protocol (RTCP) IETF RFC 2833, RTP Payload for DTMF Digits, Telephony Tones and Telephony

Signals IETF RFC 2327, Session Description Protocol (SDP)

U-SYS MRS6100 System Description A Acronyms and Abbreviations

Issue 02 (2007-4-20) Huawei Technologies Proprietary A-1

A Acronyms and Abbreviations

A

ALUI Alarm Unit

API Application Program Interface

AS Application Server

B

BAM Back Administration Module

BFII Back Insert FE Interface Unit

BHCA Busy Hour Call Attempt

C

CMM Capability Maturity Model

CRC Cyclic Redundancy Check

D

DTMF Dual Tone Multi-Frequency

E

EAM Embedded Administration Module

EMC Electromagnetic Compatibility

EMI Electro Magnetic Interference

ETS European Telecommunication Standards

A Acronyms and Abbreviations U-SYS MRS6100

System Description

A-2 Huawei Technologies Proprietary Issue 02(2007-4-20)

F

FTP File Transfer Protocol

G

GE Gigabit Ethernet

GUI Graphic User Interface

H

HTTP Hyper Text Transport Protocol

HSCI Hot-Swap and Control Unit

I

IAD Integrated Access Device

ICMP Internet Control Message Protocol

IEEE Institute of Electrical and Electronics Engineers

IETF Internet engineering task force

ISO International Organization for Standardization

ITU International Telecommunications Union

ITU-T International Telecommunication Union - Telecommunication Standardization Sector

IVR Interactive Voice Response

L

LCD Liquid Crystal Display

M

MAC Medium Access Control

MCCU Media Call Control Unit

MGCP Media Gateway Control Protocol

MML Human-Machine Language

MRI Media Resource Interface

MSU Media Service Unit

MTBF Mean Time Between Failure

U-SYS MRS6100 System Description A Acronyms and Abbreviations

Issue 02 (2007-4-20) Huawei Technologies Proprietary A-3

MTTR Mean Time To Repair

N

NFS Network File System

NGN Next Generation Network

NIC Network Interface Card

O

OAM Operation, Administration and Maintenance

OMC Operation and Maintenance Center

OSI open systems interconnection

R

RTCP Real-time Transport Control Protocol

RTP Real-time Transport Protocol

S

SDP Service Data Point

SIP Session Initiation Protocol

SIUI System Interface Unit

SMUI System Management Unit

SQL Structured Query Language

T

TCP Transfer Control Protocol

U

UDP User Datagram Protocol

UPWR Universal Power

W

WS Work Station

U-SYS MRS6100 System Description Index

Issue 02 (2007-4-20) Huawei Technologies Proprietary i-1

Index

A alarm console, 3-5 alarm generation, 3-2 alarm levels, 3-3, 3-4 appearance, 1-1 audio mixing, 3-14

B BAM, 5-3

C call processing subsystem, 2-8 communication gateway, 5-9

D data storage, 1-7 digit collecting, 3-12 DTMF, 1-5

E EWS, 5-9

F fault detection, 3-2 fault management, 1-7 features

capacity, 1-9 expansion, 1-9 operation and maintenance, 1-11 reliability, 1-9 security, 1-11 upgrade, 1-12

function media resource, 1-5 OAM, 1-7

G GUI, 1-12

H hardware alarm reporting path, 3-5

I IVR conference services, 4-4

L location, 1-2

M multimedia services, 4-3

O OAM, 5-2 OAM WS, 5-8 operating environment, 7-10

P PA, 3-7 power supply and power consumption, 7-4

R recording, 3-13 reliability design, 6-2

S security design, 6-4 software alarm reporting path, 3-7 standard, 8-2 storage environment, 7-6 structure

logical, 2-7 physical, 2-2 software, 2-8

system capacity, 7-2 system support subsystem, 2-7

Index U-SYS MRS6100

System Description

i-2 Huawei Technologies Proprietary Issue 02 (2007-4-20)

T traffic measurement, 1-7 transportation environment, 7-8

V voice services, 4-2

i.

Documents

U-SYS MRS6100 System Description