Extended Switching

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AXE System Testing 1Extended Switching Subsystem


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Table of contents

1. Extended Switching Subsystem, ESS 5

1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.2 Functional Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2. Multi Junctor 9

2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2 The function of multi junctor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3 Conference call device function. . . . . . . . . . . . . . . . . . . . . . . . . . .11

2.4 Chapter summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3. Broadcast & Mass Announcement 15

3.1 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2 Mass announcement function . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.3 Broadcast function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1. AST-DR V3 21

1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

1.2 The Phrase Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1.3 General Description of AST-DR V3 . . . . . . . . . . . . . . . . . . . . . . . 25

1.4 Announcement Routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

1.5 AST connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

1.6 AST hardware configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

1.7 AST3-32 subrack. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

1.8 Configuration Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

1.9 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

1.10 Exchange Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36


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1. Extended Switching Subsystem, ESS

Figure 1.1

Chapter Objectives

1.1 Introduction

Extended switching subsystem is the subsystem that contains functions for

announcements and multi party calls. It can also handle mass distribution

of announcements to thousands of subscribers. In a modern network, it is

vital to have spoken messages instead of tones. The limited information

that can be transmitted by tones is not enough for a modern network with a

vast number of services, services that gives income to the network

operator.

The extended switching subsystem (ESS) consists of four set of parts. The

sets of parts are:

Multi Junctor (MJ)

Mass Announcement (MA)

Broadcast (BC)

Announcement System (ANS)

This chapter will briefly describe the different set of parts. In the following

chapters MJ, BC, MA and the AST-DR V3 will be studied more in detail.

ANS will be studied briefly in this chapter. The main part of the ANS isthe announcement service terminal, studied in the AST-DR V3 chapter. In

chapter MJ the function block CCD is also studied.

ESS interfaces with GSS in connection with path handling and OMS func-

tions and with TSS in connection with semipermanent trunk handling. ESS

also interfaces SUS, BGS, OPS, MTS and TCS, which all are users of

functions in ESS.

For operation and maintenance functions ESS interfaces with OMS (Oper-

ation and Maintenance Subsystem). For statistical and traffic measurement

ESS interfaces with STS.

Chapter Objectives

After completing this chapter, you will be able to:

Give a general description of ESS

Briefly describe the different set of parts in ESS


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1.2 Functional Summary

1.2.1 Multi Junctor

The functions of multi junctor (MJ) are primarily used for monitoring,

traffic observation, conference call, broadcast, call waiting, enquiry, three

party call, trunk offering.

The Multi Junctor function in ESS is used by a number of different func-

tions that need connections of more than two parts to one call. Such func-

tions are:

Call Tracing

Call Waiting

Conference Call

Continuous Monitoring

Operator Call

Three Party Call

Trunk Offering

The functional specifications for these functions are to be found in the sub-

systems SUS, BGS, OPS and MTS.

1.2.2 Mass Announcement

The function of mass announcement (MA) gives an administration the

possibility to have mass distribution of messages, by allowing several sub-

scribers to listen, at the same time, to a message from an informationsource. The information source can be of two types; either an announce-

ment machine connected to the group switch or a semi-permanently con-

nected trunk circuit. The Mass Announcement function uses the Broadcast

function to connect the subscribers.

The main tasks for the Mass Announcement function are:

Handling of the three different types of messages CIT, NIT and RIT.

Seize and release of a broadcast resource.

Initiate the start of messages.

Initiate the charging of subscribers calling mass announcement mes-

sages.

Handling of a number of counters for statistical functions.

By commands the user of the Mass Announcement function is able to initi-

ate, end, change and printout mass announcement message data.

The Mass Announcement function can handle 256 messages. Up to 3000

listeners can be connected to a CIT message, 750 listeners to a NIT mes-

sage and maximum 1000 listeners can be connected to a RIT message.


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1.2.3 Broadcast

The function of broadcast (BC) is used by the mass announcement func-

tion as the mechanism for point to multi point connections in the group

switch, allowing several subscribers to listen to a message on the same

multiple point.

The main tasks for the broadcast function are:

Administration and control of information sources.

Handling of paths between information sources and broadcast multiple

points.

Reservation and traffic handling of loop equipment (MJ- or CCD-

devices).

Handling of broadcast resource structures.

Alarm for reduced broadcast capacity.

Timetable control of broadcast resources.

By commands the user of the broadcast function is able to perform task

like:

Reserve and release multi junctor equipment to be used for broadcast.

Initiate, change and end broadcast resource structures.

Activate and deactivate alternative broadcast resource structure data.

Change total broadcast call capacity.

Print total call capacity, reserved multi junctor equipment, broadcast

resource structure data and alarms.

1.2.4 Announcement System

In AXE, the announcement machines are included in the announcement

system (ANS) set of parts. They store the recorded messages in digital

form. Some messages are stored as one unit while others are compiled of a

number of phrases. Compiled messages are required if variable

information will be supplied to the subscriber, for example: when a

subscriber is informed that Immediate Diversion has been ordered, the

message can also contain the number to which the call will be diverted.

The compiled message provides a far better service from the consumers

point of view than would a simple confirmation of the diversion.

The hardware of the ANS is connected to the subscriber via the group

switch. The path through the group switch can be connected either to a

local subscriber or to the speech path of an incoming call.

There are different announcement service terminals:

AST-D4/D8 Announcement Service Terminal

Digital Speech 4/8 messages

AST-DP Announcement Service Terminal

Digital Speech Phrasing AST-DR Announcement Service Terminal


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Digital Speech Phrasing and Random Access Memory

AST-DR V2 AST-DR Version 2


See chapter AST-DR V3 for more details.


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2. Multi Junctor

Figure 2.1

Chapter Objectives

2.1 Introduction

This function is primarily used by functions which need more than two

parties in one and the same call. There are some subscriber services and

other similar services that have this requirement. Here are some examples

of such services:

Call Waiting

Conference Call

Monitoring Operator controlled calls

Three party calls

Trunk offering performed by an operator

These functions have different requirements on the functionality of the

multi junctor hardware, i.e. number of participants and different tone mes-

sages.

Examples of features requiring the MJ function can be seen below.

Chapter Objectives


Give a general description of the set of parts multi junctor.

Know basically how to connect the CCD


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Figure 2.2

Examples of calls requiring the multi junctor function in subsystem ESS

MJ uses the conference call device (CCD) to fulfill its functions.

2.2 The function of multi junctor

2.2.1 Monitoring

Monitoring is a function which enables the operator to monitor speech and

signalling on any telephone circuit regardless of state, during several con-

nections and without any disturbance on paths established through the

group switch.

When MJ receives an order to start monitoring of a specific multiple point

in the group switch, MJ first selects three devices in the same SNT. One

device is used to set up a oneway path between listening equipment and

MJ. When the path between MJ and the listening equipment is established,

a oneway path is set up between the second device and the multiple point

that shall be monitored.

2.2.2 Speech and Tone Sending

A connection through the group switch is ready for speech or tone sending

when the path is selected and operated.

Different tones can be sent to different participants at the same time.

A personal callfor Mr. Jones

Trunk offering Conference Call


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Example of tones sent from MJ are:

Warning tone at three party conference

Congestion tone

Busy tone

Ringing tone

Calling tone

Busy tone

Ring back tone

Dial tone

2.2.3 New Part in a Call

Insertion of a new part in a call is initiated by the user. MJ then seizes a

free device in the SNT concerned. A path is selected and/or operated

between the new part and MJ if its ordered by the user.

New participants in a conference call can be added subsequently up to the

capability limit of the CCD HW.

2.2.4 Three Party Call when Original Call Exist

When MJ is ordered to connect a third part into an already existing con-

nection, MJ first seizes free devices and traces the outgoing part of the

original path A-B. When the original path is traced MJ sets up the new

paths A-MJ, MJ-B and C-MJ, and releases the original path A-B.

If the third part is an outgoing device, MJ only sets up the paths A-MJ andMJ-B. The multiple point for connection of a third part is returned to the

user. The user then has to set up the path MJ-C.

2.3 Conference call device functionThe function block CCD is used when more than two parts shall be con-

nected to a call.

Such functions are:

Broadcast

Call Waiting

Multi Party Call

Continuous Monitoring

Operator Calls

Three Party Service

Trunk Offering

The function block CCD is can be used fro a maximum of 32 participants

in a call. CCD administrates the required relinking in the group switch and

performs the switching between the different participants in the call. The


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CCD is designed with a speech control part to avoid transmission quality

decrement with an increasing number of participants.

The CCD serves the subsystem STS by providing it with a number of sta-

tistical counters. All counters will be gathered in a route. This route will

also be the only possible one to define.

The CCD can also generate different tone messages.

There are three generations of hardware available for the MJ function.

However, only one variant, the CCDC, is orderable today and the older

variants can only be found in older exchanges. The three generations are:

MJC-D, multi junctor circuit - device (oldest)

MJC, multi junctor circuit

CCDC, conference call device circuit (newest, BYB 501)

The hardware and the corresponding software blocks can be seen below.

Figure 2.3

Function blocks and hardware in the multi junctor part of ESS

The user interfaces E1, E2, and E3 are standardized interfaces to the multi

junctor function. The block MJMAN, Multi Junctor Manager, handles all

three interfaces. The oldest interface is E1 which is used by the oldest

source systems (APT 210 06 and APT 210 08). The functionality is

restricted to the hardware MJC-D which can handle maximum 3 partici-

pants in one conference call.

The interface E2 gives access to the MJC hardware and conference calls

with up to four ordinary subscribers plus some operators. This is used in

later source systems for subscriber services initiated by subsystem SUS,

subscriber services subsystem.

MJC-D

E1 E2 E3

MJD DMJ CCD

MJMAN

MJDSNT

MJC CCDC

DMJSNT CCDSNT

Hardware

Software

Interfaces

MJC-D: Multi Junctor Circuit - Device

MJC: Multi Junctor Circuit

CCDC: Conference Call Device Circuit


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The interface E3 makes it possible to connect up to 32 ordinary subscrib-

ers to one conference call per CCD board in the new BYB 501 hardware.

2.3.1 Exchange Data

There are one operational instruction for the connection of the CCD and

one for disconnection of the same. The two OPIs are:

1. Conference calling device, connect

2. Conference calling device, disconnect

The main steps in the instruction for connection of the CCD:

1. Command EXDUI is used to connect all 32 speech channels in the

EM to the SNT to the group switch (the SNT must already be

defined, if not, define it).

2. Command EXROI is used to define a route (if no route is being

defined already). Of course the route has to be deblocked also.3. Command EXDRI is used to connect the devices to the route.

4. The devices are deblocked by means of command BLODE.

2.4 Chapter summary

The following should be remebered after this chapter:

MJ is used when a call requires more than two parts.

Examples of services using MJ are:

Call Waiting

Conference Call

Monitoring

Operator controlled calls

Three party calls

Trunk offering performed by an operator

The MJ uses the CCD to fulfill its functions, the CCD handles the con-

nection to the group switch and the physical connection of the subscrib-

ers.


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3. Broadcast & Mass Announcement

Figure 3.1

Chapter Objectives

3.1 Description

3.1.1 Introduction

These two functions interact and require each other in order to have a com-

plete function. The main purpose is, as the name indicates, to distribute

messages to a large number of subscribers. With this function, the required

number of announcing machines in the exchange can be reduced. The

announcements can originate from an announcing machine or from an

incoming trunk line from another exchange (a centralized announcing

machine in one exchange distributes the same message to a large number

of exchanges). An example of an application could be that a TV programgives a telephone number to a set of questions which should be answered

by the competitors. This will in most cases cause thousands of subscribers

calling the same message. Without the broadcast and mass announcement

functions, the amount of hardware required for this type of service would

be enormous.

3.2 Mass announcement function

The mass announcement function contains functions for mass distribution

of announcements and messages, by allowing several listeners to each

announcement or message. The function always works together with the

broadcast function.

The mass announcement function has the following main tasks:

Handling of three different types of messages (comprising one to three

announcement codes: CIT, NIT and RIT).

Seizure and release of a broadcast resource.

Initiating start of messages.

Initiating charging of subscribers calling mass announcement mes-

sages. Handling of a timetable deciding when alternative messages are to be

Chapter Objectives


Give a general description of set of parts broadcast (BC)


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delivered.

Handling of a number of counters for statistic functions.

A CIT(Circular Information Type) message, is a circular message where

the calling subscriber listens to the message starting at any point of time

and ending at any point of time at subscriber on-hook or at time out.ANIT(Non-repetitive Information Type) message, is a message where the

calling subscriber, after a limited waiting time, listens to the message from

the beginning and ending at subscriber on-hook or at end of message.

ARIT(Repetitive Information Type) message, is a message where the

calling subscriber, after a limited waiting time, listens to the message from

the beginning and ending at subscriber on-hook or after a pre-set number

of repetitions of the message.

The command BCMAI is used to specify the type of messages as well as

data related to it. Below you find the principles as well as the parametersin command BCMAI.

Figure 0.1

Parameters used to specify data for mass announcements

By using a time table, different messages can be sent out on different days.

The control is made with the so called day category (DCAT) from the

control system (calendar function). It is thus possible to have different

messages on holidays and on ordinary working days.

Circular Information Type, CIT

Non-repetitive Information Type, NIT

Repetitive Information Type, RIT

Maximum listeningtime, MLT=1-240 min.

One message Start

Stop

Start

Stop

Maximum waiting timeMWT=1-60sWI= waiting information

Start

StopMaximum no. of repetitions

MRP=1-16

Maximum waiting timeMWT=1-60sWI= waiting information


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3.3 Broadcast function

Broadcast is introduced as a mechanism for point to multipoint connec-

tions which can be used by other functions that are requiring this system

capability. The purpose of the function is to distribute information from an

information source to several listeners or speech from ordinary partici-

pants in a conference call to participants who are listeners only.

The broadcast function is used by administrations for decrease of

announcement service equipment, network equipment, operator handling

of announcement machines and to increase the number of participants in a

conference call.

It is a standard system capability introduced in order to optimize the use of

equipment and to decrease the risk for network overloads.

The broadcast function is operating the group switch to make it possible to

have point to multipoint connections.

The broadcast mechanism is performed on order from other functions in

the system, for example the mass announcement function. Functions that

are able to specify a broadcast resource can use the broadcast capability.

3.3.1 Concepts

A broadcast point is a port in the group switch where one message is made

available for several listeners or where participants can take part as listen-

ers only in a conference call.

An information source is an equipment that delivers a message or a

number of messages, normally an announcement machine connected toown exchange.

An information source point is a port in the group switch where the infor-

mation source is connected and distributed to one or several broadcast

points.

The loop equipment used in broadcast is the conference call device (CCD).

3.3.2 Broadcast Distribution Structure

Standard Broadcast

An information source can be connected to one or several informationsource points in the group switch. A message received in one information

source point is distributed to one, or if needed for call capacity reasons,

several loop equipment allocated for broadcast.


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Figure 3.2

Example of paths established in the group switch and in the CCD between an

information source and the listeners through broadcast points.

This distribution is done with point to point connections or if needed, point

to multipoint connections, established as oneway connection. The function

of the loop equipment is to loop back the message coming from the infor-

mation source into a broadcast point.

The Standard Broadcast function can only be used together with the Mass

Announcement function.

Switched Network BroadcastWith Switched Network Broadcast it is possible to broadcast a message

from an information source in another exchange which is distributed toown exchange by an ordinary switched trunk circuit.

CCD

Group Switch

InfoSourcee.g. AST

CCD

Listener

Listener

Listener

Listener

Listener

Listener

Broadcast point

Broadcast point

Info. source point


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Figure 3.3

Switched Network Broadcast

The same functionality can be used when distributing broadcast announce-

ments from a subscriber line circuit connected to own exchange.

The Switched Network Broadcast function is a platform function. It cannot

be used without a special developed user function service.

Conference Call BroadcastAt conference call, subscribers can be allowed to participate as listeners

only, which will make it possible to have a larger number of participants to

a conference call.

The functionality of a Broadcast point must be assigned to a multiple pointbefore the conference call is established.

Listeners can then be connected to the Broadcast point. On request a lis-

tener is released from the Broadcast point which makes it possible for

reconnection to a part in the conference call as normal participant.

InfoSource

Group Switch

Listener 2

Listener 3

Listener 4

Listener 1

Info sourcepoint

Trunk or subscriber line


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Figure 3.4

Conference Call Broadcast

Figure 3.4 shows connections between the group switch and a CCD when

four ordinary participants and a number of listeners are connected.

The Conference Call Broadcast function is a platform function and can

only be used with a special developed user function service.

3.3.3 Information Sources

The broadcast function is capable of broadcasting a message coming from:

an announcement machine connected to the group switch

an announcement machine connected in another exchange and distrib-

uted to the own exchange by means of a semi-permanently connected

trunk circuit.

an announcement machine connected to a subscribers line circuit and

distributed in the own exchange by means of a semi-permanently con-nected trunk circuit.

an announcement machine connected to another exchange or to a sub-

scriber line in own exchange and distributed in own exchange by the

switched network.

a conference call.

Call A

Call B

Call C

Listener 1

Listener 2

Listener 3

CCD

Broadcast point

GS


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1. AST-DR V3

Figure 1.1

Chapter Objectives

1.1 Introduction

An announcement machine is used to provide the customer with digital

announcement services. These services are based on a phrase concept

where different types of phrases are used to compose announcements. A

phrase is a period of speech data, ranging from a single tone or word to a

sequence of sentences.

In networks today there is a demand for more complex digital announce-

ment services from announcement machines. Messages about changes in

the network, information about weather, news, stock market informationand subscriber services are examples of announcement services.

The Announcement Service Terminal (AST) product range offers high

quality speech and tone announcement services that meet modern network

requirements.

The Announcement System Set of Parts (ANS) contains software and

hardware that provide the functions of the different AST products.

There are five AST products avaiblable within the ANS:

AST-D4/D8 Announcement Service Terminal Digital Speech 4/8

messages

AST-DP Announcement Service Terminal Digital Speech

Phrasing

AST-DR Announcement Service Terminal Digital Speech

Phrasing and Random Access Memory



This book focuses on AST-DR V3, the most recent and powerful of the

AST products. A short description of each of the AST products is found in

ObjectivesAfter completing this chapter the participants will be able to:

Describe the hardware structure of AST-DR V3

Describe how the AST is connected to AXE


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AST-DR V3

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the Appendix of this book. The AST-DR V3 is an interactive voice

response system.

1.2 The Phrase Concept

A phrase is a period of speech data, ranging from a single tone or word to

a sequence of sentences. Phrases are used to compose desired announce-

ments. The phrases are identified by phrase numbers, which are used when

composing announcements by command.These phrase numbers are imple-

mented in the AST-DR V3 software and visible to the operator.

1.2.1 Phrase Categories

There are two categories of phrases:

Pre-recorded Phrases (fixed, silent or variable)

Recordable Phrases

Pre-recorded Phrases - Fixed

A fixed phrase is a phrase whose content is fixed at production stage. The

phrase content cannot be changed once it is in service.

Fixed phrases are used when a high degree of availability of a particular

phrase is needed and where changes are not required.

The following is an example of a fixed phrase:

"The number you have dialled is out of service"

Pre-recorded Phrases - Silent

A silent phrase indicates a silence of a certain length. The software of the

announcement machine converts the phrase into a number of pre-recorded

silent phrases.

Silent phrases are used to reduce the amount of speech memory needed

and to allow greater flexibility in announcements. Silent phrases can last

between 0 and 9.9 s, in steps of 100 ms as required.

Pre-recorded Phrases - Variable

A variable phrase is a phrase which content is determined during each call

using that phrase. The following is an example of an announcement con-

taining a variable phrase:

Your last call lasted five minutes and three seconds

In this example, Your last call lasted is a fixed phrase and five minutes

and three seconds is a variable phrase.

Recordable Phrases

A recordable phrase is a phrase whose content can be changed by using arecording procedure or duplication.


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Recordable phrases are used to create announcements that need to be

updated frequently, for example, when providing information about the

weather or the stock market.

1.2.2 Physical Phrases

Phrases are translated into physical phrases that are stored in the AST-DRV3 hardware. Physical phrase numbers, implemented in the hardware,

identify the physical phrases. The operator does not use the physical

phrase numbers. The phrase numbers are mapped to the corresponding

physical phrase numbers.

A physical phrase is a defined period of speech data. Speech data can be

the following:

One or more words

A part of a word

One or more sentences

A tone

A silence of a certain length.

The content of a fixed phrase is determined at production and cannot be

changed during operation. Physical phrases corresponding to fixed phrases

are stored in Erasable Programmable Read Only Memory (EPROM).

The content of a recordable phrase is determined in the exchange, and can

also be changed in the exchange. Physical phrases corresponding to

recordable phrases are stored in Random Access Memory (RAM).

1.2.3 Sub-phrases

Silent and variable phrases are built up of sub-phrases which is the small-

est phrase that can be mapped to a physical phrase. The following example

was given earlier to show an announcement containing a variable phrase:


In this example, the variable phrase five minutes and three seconds is

built up by five sub-phrases:

five

minutes

and

three

seconds

These sub-phrases are a result of a mapping to physical phrases. Depend-

ing on the actual time, different physical phrases will be used.


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1.2.4 Relationships in the Phrase Concept

Figure 1.2 shows the relationships in the phrase concept. In the first

announcement, the example of a variable phrase given earlier has been

used:


In the second announcement, another example has been given:

The time is nine hours, sixteen minutes

Figure 1.2

Relationships in the phrase concept

Phrase numbers implemented in the software identifies the phrases in the

announcements. These phrase numbers form the operators view of thephrases. Both examples contain variable phrases that are built up of sub-

phrases. The phrase numbers are mapped to physical phrase numbers

implemented in the hardware. These physical phrase numbers point out the

physical phrases and are used when communicating with the hardware.

Physical phrases are stored in the hardware.

Note the following:

A variable or silent phrase can only be translated into fixed phrases.

A certain physical phrase can be used in more than one announcement

and both in a variable and in a fixed phrase, all at the same time. The announcements and the phrases (with their phrase numbers) can be

Subphrase

Subphrase

Subphrase

Subphrase

Subphrase

Physical phrase number P

Physical phrase number Q

Physical phrase number U

Physical phrase number S

Physical phrase number R

Physical phrase

Physical phrase

Physical phrase

Physical phrase

Physical phrase

Physical phrase

Physical phrase number T

Announcement 1

Announcement 2

Phrase A

(phrase number 13)

Phrase B

(phrase number 15)

Phrase D

(phrase number 11)

Subphrase

Subphrase

Subphrase

Subphrase

(seconds)

(three)

(and)

(minutes)

(five)

(Your last...)

Physical phrase number V

Physical phrase number X

Physical phrase number Z

Physical phrase number Y

Physical phrase

Physical phrase

Physical phrase

Physical phrase

Physical phrasePhysical phrase number R (minutes)

(sixteen)

(hours)

(nine)

(The time is ...)Phrase C

(phrase number 16)

Relationship in the phrase conceptRelationship in the phrase concept


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printed using commands.

1.3 General Description of AST-DR V3

The product name of AST-DR V3 is EriVoice 1000.

AST-DR V3 is a digital announcement machine with the following func-tions:

sending of announcements

recording of recordable phrases

digit detection

duplication of recordable phrases

The announcements are sent to a subscriber. The composition of phrases in

each announcement can be changed by operator commands.

Operators and recording subscribers can record recordable phrases fromstandard telephone sets anywhere in the network.

In AST-DR V3 there can be one up to eight Digital Links (DLs) connected

to the Group Switch (GS). Each DL contains 32 channels. This means that

there can be 32 up to 256 channels to the GS.

Digit detection is performed with the use of Dual Tone Multi Frequency

(DTMF) devices. This allows the subscriber to interact with either the

AST-DR V3 or a user function, by keying in digits on request. A recording

subscriber interacts with the AST-DR V3 by using the voice guidance

function for recording or duplication; see chapter 3. A listening subscribercan interact with a user menu provided by a user function. This user menu

is not used for recording or duplication. A call waiting service is an exam-

ple when a user menu can be used. The listening subscriber is notified of a

congestion and is then requested to key in digits corresponding to given

alternatives in a user menu.

The AST-DR V3 has a duplication function. This makes it possible to

duplicate recordable phrases and send them to another announcement sys-

tem with duplication functionality. It is possible to duplicate a recordable

phrase even though it has not been released yet. This way, recordable

phrases can be duplicated first and then all recordable phrases can bereleased simultaneously. One channel per DL has duplication capabilities.

As the recordable phrases are stored in Random Access Memory (RAM),

which is affected by the loss of power, a backup medium is needed. The

AST-DR V3 system has an option of a hard disk for backup and restoration

of speech data in recordable phrases. It is autonomously maintained and

guarantees autonomous restoration in case of corrupted speech data or

power failure.

As mentioned in the introduction, AST-DR V3 is regarded as being the

most powerful and flexible of the announcement systems. Added features

from its nearest predecessor AST-DR V2 are listed in the Appendix of thischapter.


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1.4 Announcement Routes

There are three types of routes in the announcement system. The exchange

data required to set up these routes is covered in the Operation and Mainte-

nance chapter.

The maximum number of announcements that can be defined depends onthe number of available routes.

Listening Route

The listening route is used for sending announcements to listening sub-

scribers. When accessing a listening route, a device in the main route is

seized. An announcement composed of the phrases defined for the listen-

ing route will then be sent.

The announcement for a listening route can contain fixed, recordable,

silent, and variable phrases. The maximum number of phrases in an

announcement is 32. The maximum number of recordable phrases in anannouncement is two. A recordable phrase may only be used in one listen-

ing route, while fixed phrases may be used in several listening routes.

Recording Route

The recording route is used for recording subscribers when recording the

contents of a recordable phrase. When accessing a recording route, a

device in the main route is seized. To be able to administer the contents of

a recordable phrase, a recording route must be defined for each recordable

phrase. The recording can then be performed by accessing the recording

route and supplying the speech data. A recordable phrase requires a listen-

ing route to be able to listen to it.

The speech data will be stored in the phrase, defined for that recording

route. The recordable phrase will be available for listening subscribers

through the listening route containing that phrase.

Main Route

The main route is a pool of AST-DR V3 devices. Each listening and

recording route is linked to the main route, which allows the subscriber or

user function to access the physical phrases connected to the main route.

The main route cannot be used for access to the AST-DR V3 and it cannotitself carry any traffic. There is only one main route per AST-DR V3.


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1.5 AST connection

The AST-DR V3 hardware is seen by the Regional Processor (RP) as one

Extension Module (EM) and is controlled from the RP via the EM-bus.

Only RP4 or compatibles are supported. The maximum number of EMs

per RP is one.

Figure 1.3

Connection of AST-DR V3

The hardware is connected to the Group Switch (GS) via 32 channel dig-

ital links (DLs). These speech channels can be handled simultaneously and

all channels are equipped with DTMF receivers. One channel per DL has

duplication capabilities which allows exchanging of speech data with

other announcement systems. Only DL2 types of DLs to the GS are sup-

ported.

Since the new Group Switch (GSD) not support a DL2 interface, the DL2

link is connected to a IO2B board housed in a Generic Device Magazine

(GDM). The IO2B board is connected to the Digital Link Half height

Board (DLHB) via the back plane. The DLHB converts the DL2 interface

into a DL3 interface, which is supported by the new GSD. The DLHB is

connected to a TSM in the Group Switch.

RP

CMAG

SMAG

CPRP-bus

EM bus

AST-DR V3

hardware

DL2 links to

Group Switch


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1.6 AST hardware configuration

The AST-DR V3 can be configured with different combinations of the fol-

lowing subracks:

Control Magazine (CMAG)

Storage Magazine (SMAG)

A special configuration is the AST3-32, which is a combination of the

CMAG and SMAG functionality in one subrack.

CMAG is a control magazine which function is to transfer speech data

between the speech store in SMAG and the Group Switch (GS). All

DTMF receivers are located in CMAG.

All speech memory is located in SMAG. SMAG can be equipped with a

backup facility for backup and restore of recordable speech data. Speech

data are stored on memory boards. There are two different types of mem-

ory boards:

ASTRAM. Contains Random Access Memory (RAM)

ASTROM. Contains Electrical Programmable Read Only Memory

(EPROM)

AST3-32 is a combination of the CMAG and SMAG functionality. It can-

not be equipped with a backup facility.

The CMAG, SMAG and AST3-32 subracks have de-centralised supervi-

sion and control functions. Each of the subracks therefore has its own

processor.

The following combinations of subracks are possible:

CMAG (used for DTMF digit detection)

CMAG and SMAG

AST3-32

The number of available channels and amount of speech data depend on

the hardware configuration. The following variants of the CMAG and

SMAG subracks are available:

CMAG-256 subrack which can be equipped with up to eight digitallinks (DLs)

CMAG-64 subrack which can be equipped with up to two DLs

SMAG-8 subrack which can be equipped with one up to eight memory

boards in combination with a backup facility

SMAG-4 subrack which can be equipped with one up to four memory

boards or up to three memory boards in combination with a backup

facility

The AST3-32 subrack is equipped with one DL and with one or two mem-

ory boards.


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The AST-DR V3 can have the hardware configurations shown in

Figure 1.4.

Figure 1.4

AST-DR V3 hardware configurations

1.6.1 CMAG subrack

Subrack FunctionsCMAG is the control subrack in the AST-DR V3. It is controlled by one ofthe two RPs which are physically included in the EM of the AST-DR V3.

CMAG has a connection for communication with the SMAG, and up to

eight DL connections for communication with the GS.

There are two types of the CMAG: CMAG-256 and CMAG-64.

Subrack LayoutThe CMAG-256 subrack is of the type full-size (BFD 511 001/x) and the

CMAG-64 subrack is of the type half-size (BFD 561 001/x). The subrack

length is 465 mm (CMAG-256) or 190 mm (CMAG-64). The figure belowshows the CMAG-256 subrack.

Hardware configuration DLs Channels Memory boardsSpeech data

capacity

CMAG-256 1-8 32-256

CMAG-64 1-2 32-64

CMAG-256

SMAG-8

1-8 32-256 1-8 1-8 hours

CMAG-256

SMAG-4

1-8 32-256 1-4 (1-3 with

backup facility)

1-4 hours (1-3 with

backup facility)

CMAG-64

SMAG-8

1-2 32-64 1-8 1-8 hours

CMAG-64

SMAG-4

1-2 32-64 1-4 (1-3 with

backup facility

1-4 hours (1-3 with

backup facility

AST3-32 1 32 1-2 1-2 hours


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Figure 1.5

CMAG-256 subrack

Subrack Boards and InterworkingThe CMAG subrack contains the following boards:

RP4 Serial RP-bus interface, power interface towards the

backplane and M-bus master.CP5R APNCPU design, based on Motorola 68030 25

MHz processor and equipped with on-board SCSI

interface.

EMKRIP Interface towards RP (EM-bus). Handles orders

towards ASTKR32 and CP5R and passes received

digits from ASTKR32 boards to RP.

DMAMIM DMA controller board and Speech Memory Inter-

face Master. DMA controller for data transfer

between DLBUF boards (DLs) and speech memory

in SMAG.

DLBUF GS interface board. Contains buffer for incoming

and outgoing speech data. It also contains the dupli-

cation function.

ASTKR32 AST Keyset Receiver. The board is capable of han-

dling DTMF detection on all 32 devices from one

DL.

1.6.2 SMAG

Subrack FunctionsSMAG is the speech storage subrack in the AST-DR V3. It contains mem-

ory boards for storage of speech data and can be equipped with an optional

R

P

4

C

P

5

R

E

M

K

R

I

P

D

M

A

M

I

M

D

L

B

U

F

A

S

T

K

R

32

D

L

B

U

F

A

S

T

K

R

32

A

S

T

K

R

32

A

S

T

K

R

32

A

S

T

K

R

32

A

S

T

K

R

32

A

S

T

K

R

32

A

S

T

K

R

32

D

L

B

U

F

D

L

B

U

F

D

L

B

U

F

D

L

B

U

F

D

L

B

U

F

D

L

B

U

F

R

P

4

CMAG-256 subrack


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31

backup facility. There are two types of the SMAG: SMAG-8 and

SMAG-4.

Subrack LayoutThe SMAG-8 subrack is of the type full size (BFD 511 002/x) and the

SMAG-4 subrack is of the type half-size (BFD 561 002/1). The subrack

length is 465 mm (SMAG-8) or 190 mm (SMAG-4). The figure below

shows the SMAG-8 subrack.

Figure 1.6

SMAG-8 subrack

Subrack Boards and InterworkingThe SMAG subrack contains the following boards:

RP4: Power interface towards the backplane and M-bus master.

CP5R: APNCPU design, based on Motorola 68030 25 MHz processor

and equipped with on-board SCSI interface.

SMIS: Speech Memory Interface Slave for 32 bits extended APN bus

from CMAG. It also contains dual access memory for storage of phraseand sector information and communication area for CMAG-SMAG

interwork.

ASTROM: AST Read Only Memory. 16 MWord storage capacity

implemented in EPROM, used for storage of fixed phrases.

ASTRAM: AST Random Access Memory. 16 MWord storage capacity

implemented in DRAM, used for storage of changeable phrases.

HDU: For backup and restore of changeable phrases.

R

P

4

R

P

4

C

P

5

R

S

M

I

S

A

S

T

E

M

0

A

S

T

E

M

1

A

S

T

E

M

2

A

S

T

E

M

3

A

S

T

E

M

4

A

S

T

E

M

5

A

S

T

E

M

6

A

S

T

E

M

7

H

D

U

D

U

M

M

Y

40

D

U

M

M

Y

40

D

U

M

M

Y

40

D

U

M

M

Y

20

SMAG-8 subrack


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1.7 AST3-32 subrack

Subrack FunctionsAST3-32 is a combination of CMAG and SMAG functionality. It has one

DL connection towards the GS and up to two memory boards.

Subrack LayoutThe AST3-32 subrack is of the type half-size (BFD 561 003/x). The sub-

rack length is 190 mm.

Figure 1.7

AST3-32 subrack

Subrack Boards and Interworking

All boards that are available for the CMAG and SMAG can be used in theAST3-32, except for the following:

HDU which cannot be installed in the AST3-32.

The combination of DMAMIM and SMIS which will be replaced by

the ASTDMA2 board. This contains a DMA controller, Speech Inter-

face Memory Interface Master, DMA controller for data transfer

between the DLBUF board (DL) and speech data memory.

R

P

4

R

P

4

C

P

5

R

E

M

K

R

I

P

A

S

T

K

R

32

D

L

B

U

F

A

S

T

D

M

A2

A

S

T

M

E

M

A

S

T

M

E

M

AST3-32 subrack


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1.8 Configuration Handling

Configuration handling is the way to change the hardware configuration of

aninstalled AST-DR V3 system. It is possible to perform the following

changes:

Replacing a CMAG-64 subrack by a CMAG-256 subrack and reversed Replacing a SMAG-4 subrack by a SMAG-8 and reversed

Removing an SMAG subrack

Adding a backup facility (not valid for the AST3-32 system)

Removing a backup facility (not valid for the AST3-32 system)

Increasing the speech memory capacity by adding ASTROM or

ASTRAM boards

Decreasing the speech memory capacity by adding ASTROM boards

Replacing ASTROM boards by ASTROM boards

Replacing ASTROM boards by ASTRAM boards

Increasing port capacity by adding DLs (not valid for the AST3-32 sys-

tem)

Decreasing port capacity by adding DLs (not valid for the AST3-32

system)

It is not possible to remove ASTRAM boards or replace ASTRAM boards

by ASTROM boards.

When a backup facility is installed it is possible to add ASTRAM boards,

replaceASTROM boards by ASTRAM boards, and replace the SMAGsubrack by the other SMAG variant without losing recorded speech data.

The only restriction is that already installed ASTRAM boards must remain

on the same memory board position in SMAG.

All other allowed configuration changes do not require a buckup facility to

save already recorded speech data.

DLs must be installed next to each other from DL position 0 and upwards.

The AST-DR V3 supports hot insertion which is a way to insert or extract

boards with power switched on but without traffic. Each board, except the

backup facility, can be added or removed by means of hot insertion.


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1.9 Appendix

1.9.1 AST-D4/D8

AST-D4 can handle 128 devices (channels) and is able to generate 4 differ-

ent messages and 8 different tones at the same time. Each message or tone

can be switched to a specific device. The phrases are fixed phrases and are

programmed onto an EPROM.

The maximum speech store duration is 2 minutes and the maximum dura-

tion of a phrase is 0.5 minutes.

With AST-D4, the EPROM boards can be replaced by AL-AM boards,

which give an analogue interface to an announcing machine.

AST-D8 can handle 64 devices (channels) and is able to generate 8 differ-

ent messages and 8 different tones at the same time. Each message or tone

can be switched to a specific device. The phrases are fixed and are pro-

grammed onto an EPROM.

The maximum speech store duration is 4 minutes and the maximum dura-

tion of a phrase is 0.5 minutes.

1.9.2 AST-DP

This system has 32 speech channels that are connected directly to the

Group Switch. Each of these channels can have its own message, which

always starts from the beginning. It is also possible to have variable mes-

sages, where part of the contents of the message is determined during the

call. Each message consists of a maximum of 32 phrases (speech or tones)which are chosen out of a maximum of 1530 phrases. The system has 6

EPROM boards, which can contain in total 6 minutes of speech.

1.9.3 AST-DR V1

In AST-DR version 1, there are 64 speech channels, which are connected

directly to the Group Switch. Each of these channels can have its own

message, which starts from the beginning. It is also possible to have varia-

ble messages, where part of the contents of the message is determined dur-

ing the call. Each message consists of a maximum of 32 phrases (speech or

tone) which are chosen out of more than 20k of phrases. The system can

have 4 memory boards, which can contain 16 minutes of speech. It is also

possible to replace 1-3 EPROM boards, by 1-3 RAM boards which means

that it is possible to use recordable phrases which can be recorded by the

operator or by an authorised subscriber. The system has 16 DTMF receiv-

ers, which can be used for interactive services.

The main characteristics of AST-DR are:


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Ability to announce messages on all 64 channels

Ability to record recordable messages on 16 channels

16 DTMF receivers

No automatic backup

Maximum speech capacity is 16 minutes, divided over four memoryboards, which can be fixed phrases (EPROM) or recordable phrases

(RAM). At least one EPROM must be available.

16k of recordable phrases can be defined

1.9.4 AST-DR V2

In AST-DR V2, there are 64 speech channels, which are connected directly

to the GS. Each of these channels can be seized to gain access to all avail-

able announcements. Each channel can receive and decode DTMF digits.

It is also possible to record on all 64 channels.

The announcements may contain fixed, variable, recordable or silent

phrases. Each announcement consists of a maximum of 32 phrases (speech

or tone). The maximum speech store for the AST-DR V2 is eight hours.

The maximum number of variable phrases is 49 and the maximum number

of recordable phrases is 16383. The maximum number of fixed phrases is

1024 per EPROM board with a maximum of 32768 fixed phrases in total.

The AST-DR V2 has an option of a backup facility, which ensures that in

event of power failure the speech contents of the RAM boards can be

restored quickly and easily.

The main characteristics of AST-DR V2 are:

Ability to access announcements on all 64 channels

Each channel can receive and decode DTMF digits

Ability to record recordable messages on all 64 channels

Maximum speech store is eight hours

16k of recordable phrases can be defined.

Optional backup facility to restore speech contents of the RAM boards

1.9.5 AST-DR V3 Compared to AST-V2In AST-DR V3 there can be 32 up to 256 channels connected to the GS.

The maximum speech store is eight hours. The maximum number of varia-

ble phrases is 99. The maximum number of recordable phrases is 16383.

The maximum number of fixed phrases is 4096 per ASTROM board.

The AST-DR V3 has a duplication function. This makes it possible to

duplicate recordable phrases and send them to another announcement sys-

tem with duplication functionality. It is possible to duplicate a recordable

phrase even though it has not been released yet. This way, recordable

phrases can be duplicated first and then all recordable phrases can be

released simultaneously. One channel per DL has duplication capabilities.


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36

There are only two types of subracks in the AST-DR V3, CMAG and

SMAG. There is also a special configuration, the AST3-32, which is a

combination of the CMAG and SMAG functionality in one subrack.

The AST-DR V3 hardware follows the BYB 501 equipment practice. Hot

insertion is supported, which means that boards can be inserted or

extracted with power switched on but without traffic. Each board, except

the backup facility, can be added or removed by means of hot insertion.

1.10 Exchange Data

The connection of the AST-DR V3 includes the following:

EM data: Definition of the AST-DR V3 hardware equipment as an Exten-

sion Module (EM)

SNT data: Definition of SNT data, that is, connection to the GS and

supervision information. Route data: The main route, listening routes and recording routes

Administration of the main route

Administration of announcement data

Connection of devices: Connection to the main route and to the SNT

Blocking supervision

Exchange data for Access to AST-DR V3

Phrase specification

Figure 1.8

Access to AST-DR V3 and the different kinds of routes

B-numberanalysis

B-numberanalysis TCIA

TCIA1-5 digits

Routinganalysis

Routinganalysis Announcement

code (ANNC)RCB-number

TCIA route

UserfunctionUser

function Announcementcode (ANNC)

Announcementcode analysis


Listening/recording route

Listening/recording route Main route

Main route

DevicesDevices

Announcementcode (ANNC)

R R1

EXROIEXRBCEXANC

EXROIEXMRC

ANBSI ANRSI

EXAUI

Access to AST-DR V3 and theAccess to AST-DR V3 and thedifferent kinds of routesdifferent kinds of routes


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37

Figure 2.3 shows which hardware and software in the AST-DR V3 that

needs to be defined in the exchange data. The commands used in the dif-

ferent software blocks and the hardware are also shown.

1.10.1 EM Data

The command EXEMI is used to connect an EM. After the EM is defined,the SNT, the route and the devices can be defined. The equipment must be

specified with the SNT type ASDS3. Each SNT can contain one up to

eight DLs, corresponding to 32 up to 256 channels. The SNT type ASDS3

then has from a 1:32 up to a 1:256 relationship with the ASDH3 devices.

The following is an example:

EXEMI:EQM=ASDS3-0&&-255, RP=124, RPT=125, EM=2;

BLEME:EM=2, RP=124, RPT=125;

1.10.2 SNT DataFor AST-DR V3, only one SNT can be connected with the command

NTCOI. The SNT parameter is of the form ASDS-x, where x is the SNT

individual.

The SNTV (hardware variant) parameter represents the subrack configura-

tion of AST-DR V3. See the Announcement Service, Device Supervision

(Application Information, 2/155 18-CNT 252 1023) for more details.

The SNTP parameter (SNT connection point) indicates the connection

point to the GS. Each SNTP connects a 32 channel DL (PCM). AST-DR

V3 can have up to eight DLs depending on the hardware configuration.

This corresponds to eight SNTPs with a total of 256 PCM channels. The

following is an example:

NTCOI:SNT=ASDS3-0, SNTP=TSM-6-2&-3, SNTV=H321;

1.10.3 Route Data

The command EXROI is used to define routes. In the AST-DR V3, three

kinds of announcement are used. They are indicated by the parameter

function code (FNC) as follows:


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38

FNC = 1 for main route

FNC = 2 for listening route

FNC = 3 for recording route

Figure 2.4 shows how to access the AST-DR V3 and the different kinds of

announcement routes. The commands that are used for exchange data are

also stated.

1.10.4 Access to AST-DR V3 and the different kinds of routes

See the Announcement Service, Device Handling (Application Informa-

tion, 2/155 18-CRT 252 1022) for more details.

1.10.5 Main Route

The main route is a pool of ASDH3 devices. It is used for the administra-

tion of data for a group of devices that can reach exactly the same set of

physical phrases. For the main route, a route identifier (name) can be spec-ified as follows:

EXROI:R=3MUD02, DETY=ASDH3, FNC=1;

1.10.6 Listening Route

A listening route is used to send announcements to subscribers. The route

is seized via AUIF. Listening routes are defined and connected to the main

route as follows:

EXROI:R=3L02001, DETY=ASDH3, R1=3MUD02, FNC=2;

B-numberanalysis

B-numberanalysis TCIA

TCIA1-5 digits

Routinganalysis

Routinganalysis Announcement

code (ANNC)RCB-number

TCIA route

UserfunctionUser

function Announcementcode (ANNC)



Listening/recording route

Listening/recording route Main route

Main route

DevicesDevices

Announcementcode (ANNC)

R R1

EXROIEXRBCEXANC

EXROIEXMRC

ANBSI ANRSI

EXAUI

Access to AST-DR V3 and theAccess to AST-DR V3 and thedifferent kinds of routesdifferent kinds of routes


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39

1.10.7 Recording Route

A recording route is used to record and duplicate the contents of a recorda-

ble phrase. The route is seized via AUIF. Recording routes are connected

to the main route as follows:

EXROI:R=3R02001, DETY=ASDH3, R1=3MUD02, FNC=3;

1.10.8 Additional Route Data for Listening and Recording Routes

The command EXRBC is used to set additional route data for listening and

recording routes. The command format is as follows:

EXRBC:R=, R1=,

MIS2=,

MIS4=,

MIS5=;

The call termination type, MIS2, determines how the announcement send-

ing terminates. It is only valid for listening routes and has three possible

values:

MIS2=1 for no termination

MIS2=2 for termination after time duration specified by parameter

MIS4

MIS2=3 for termination after a number of repetitions as specified by

parameter MIS4The call termination data parameter, MIS4, contains supplementary infor-

mation for the MIS2 parameter.

If the MIS2 parameter has a value 2, MIS4 gives the time duration after

which the announcement stops. This time is stated in seconds and is a mul-

tiple of 10. The value range is 10 to 1270.

If the MIS2 parameter has a value 3, then MIS4 gives the number of repe-

titions of the announcement before it stops. It can have a value from 1 to

65535.

The MIS5 parameter is only valid for listening routes. It indicates the max-imum number of devices that can be seized by the listening route.


EXRBC:R=3L02001, R1=3MUD02, MIS2=3, MIS4=10, MIS5=4;

1.10.9 Administration of Main Routes

The command EXMRC is used to change the main route data. The com-

mand format is as follows:

EXMRC:R=,

RSSC=,


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40

NDRR=;

Refer to Announcement Service, Main Route, Connect (Operational

Instruction, 8/154 31-CRT 252 09) for more details on main route data.

The parameter RSSC gives the recordable speech storage capacity in sec-

onds. Refer to Announcement Service, Device Handling (ApplicationInformation, 2/155 18-CNT 252 1022) for information on how to calculate

the value of the RSSC parameter. The maximum value depends on the

number of ASTRAM boards installed per SMAG. Refer to Hardware Con-

figuration in chapter 1 for more information.

The parameter NDRR specifies the number of devices reserved for record-

ing. This number of devices is always reserved for recording subscribers

who wish to access the recording procedure, no matter how many listening

subscribers are trying to access the main route. The value can be between 0

and 256.

The following is an example of how the command EXMRC can be used:

EXMRC:R=3MUD02, RSSC=4032, NDRR=0;

1.10.10 Administration of Announcement Data

The command EXANC is used to connect phrases to listening and record-

ing routes. Additional parameters for recording routes can also be defined

by using this command.

Refer to Announcement Service, Device Handling (Application Informa-

tion, 2/155 18-CNT 252 1022) for more details on administration of

announcement data.

1.10.11 Listening Route

Phrase numbers (PHR) which are used to point out the physical phrases

identifies phrases. The physical phrases are stored in the AST-DR V3

hardware. For more information about phrases, see The Phrase Concept in

chapter 1 and Announcement Service, Device Handling (Application

Information, 2/155 18-CNT 252 1022).


EXANC:R=3L02001, PHR=12001;

1.10.12 Recording Route

The command format for recording routes is as follows:

EXANC:R=,

PHR=,

RSSC=, PINCODE=,

RECPROC=. CENSOR=,


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41

BACKUP=;

The RSSC parameter gives the recordable speech storage capacity in sec-

onds. The sum of the RSSC values for the recording routes should not

exceed the RSSC value defined for the main route. See the description of

the command EXMRC in Administration of Main Routes.

The PINCODE parameter is used to prevent illegal use of the recording

and duplication functions. When the PINCODE is defined in the EXANC

command, the recording or duplication procedure starts by asking for this

PINCODE.

The RECPROC parameter indicates which recording procedure method is

used. There are two methods:

RECPROC = 1, recording procedure method 1. There is one recordable

phrase at the disposal of the recording subscriber when recording.

Therefore, listening subscribers cannot listen to the phrase while the

recording subscriber is recording.

RECPROC = 2, recording procedure method 2. There are two recorda-

ble phrases at the disposal of the recording subscriber when recording.

Therefore, listening subscribers may listen to the active phrase while

the recording subscriber is recording the new phrase.

If the CENSOR parameter is set to YES, the operator must check a new

recording or duplication recording before it can be released into service.

The command EXRRI is used for this release, as shown in the example

below.

EXRRI:R=3R02001, TYPE=CENSOR;

If the BACKUP parameter is set to YES, an alarm printout is generated

when a new recording is released into service. The alarm printout is:

MANUAL BACKUP OF NEW RECORDING NEEDED

This alarm is used to remind the administration that a backup should be

made and the alarm is ceased immediately after being issued.

If a recordable phrase is destroyed, an alarm printout is generated indicat-

ing that the manual backup needs to be restored. The alarm printout is:

RECORDABLE PHRASE HAS BEEN DESTROYED

The alarm is ceased immediately after being issued.

The following is an example of how the command EXANC can be used:

EXANC:R=3R02001, PHR=12001, RSSC=10, RECPROC=1,

BACKUP=NO, CENSOR=NO;

If there are too many faulty attempts to the recording or duplication proce-

dure, the subscriber is notified by a voice message and the call is forced

released. If there are too many faulty attempts made in consecutive calls,

the recording route is barred. The subscriber is notified by a voice mes-sage. The barred recording route can only be restored by operator com-


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mand. The operator knows which ANNC is in use by a subscriber. With

the ANNC, the corresponding route can be found. The command EXRRI

is then used to remove the barring, as shown in the example below.

EXRRI:R=3R02001, TYPE=FAUPIN;

1.10.13 Connection of Devices

Connection of Devices to Main RouteThe command EXDRI is used to connect devices to a route. The following

is an example:

EXDRI:DEV=ASDH3-256&&-287, R=3MUD02;

Connection of Devices to the SNTThe command EXDUI is used to connect devices to an SNT. The follow-

ing is an example:

EXDUI:DEV=ASDH3-256&&-287;

Blocking SupervisionBlocking supervision involves supervision of the number of blocked

devices in the main route. The output, in the form of an alarm, is given

when a certain limit value is reached.

The command BLURC is used to change the alarm limit and alarm classes

for blocking supervision. The command BLURI is used to initiate block-

ing supervision on a route. The following is a general example:

BLURC:R=3R02001, LVB=, ACL=;

BLURI:R=3R02001;

1.10.14 Exchange Data for Access to AST-DR V3

The AST-DR V3 is accessed by sending announcement codes (ANNC) to

the AUIF. The ANNCs can be provided in two different ways:

From user functions. A user function is used to send audible messages

to a subscriber and can be implemented in various subsystems, for

example, subscriber service function in SUS and Intelligent Network

services in SES.

From B-number analysis and routing case analysis in TCS. One up tofive B-number digits are sent to the Traffic Control Interface to

Announcement (TCIA). TCIA sends the digits as an ANNC.

The ANNC is analysed in the AUIF, which results in the translation of the

ANNC into a listening or recording route. The physical phrases that the

announcement consists of are then accessed via the main route. For more

detailed information, see Access to AST-DR V3 in chapter 1.

The command EXAUI is used to define the connection between an ANNC

and a listening or a recording route. The following is an example:

EXAUI:ANNC=32001, R=3L02001;

Access via User Functions


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The user functions send announcement codes (ANNC) directly to the

AUIF.

Access from B-number Analysis and Routing AnalysisIt is necessary to define exchange data for the B-number analysis and rout-

ing case analysis. The following is an example of a routing case specifica-

tion:

ANRSP:RC=ALL;

ANRSI:R=TCIAL1, RC=250, CCH=NO, SP=444;

ANRSI:R=BDUP01, RC=300, CCH=NO, SP=444;

ANRAI:RC=250;

ANRAI:RC=300;

The route TCIAL1 is connected to the TCIA and the route BDUP01 is

connected to the TCIADUP. The command EXROI is used for this pur-pose.

The following is an example of a B-number specification:

ANBZI;

ANBCI;

ANBSI:B=16-20, RC=250, L=4;

ANBSI:B=16-30, RC=300, L=4;

ANBAI;

In this example, the B-number 16-20 is connected to the route TCIAL1

and the B-number 16-30 is connected to the route BDUP01.

Phrase SpecificationFor each phrase per main route, a phrase label can be connected. The com-

mand EXPLC is used to define the phrase labels. The example shows the

command format.

EXPLC:R=,

PHR=, PHRLAB="";The maximum number of characters in the phrase label is 31. The com-

mand EXPLP can be used to print out phrases and their corresponding

phrase numbers.

The following is an example of how the command EXPLC is used:

EXPLC:R=3MUD02, PHR=12001, PHRLAB="RECPHRASE 12001";


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