Wireless Voice over IP - Cisco › c › dam › global › sv_se › assets › ...wireless with RF configured for voice, Video, UC and more ... • On-Screen Test Results ... World

Borderless Mobility: CUWN TDM © 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential

Wireless Voice over IPPartner Update

Peter Jerhamre, Systems Engineer


The Need for ―Collaboration Ready‖ WirelessNot All Wireless is Created Equal

Design & Deployment Pervasive wireless with RF configured for voice, Video, UC and more

Support of Mixed Client Deployments

Ensure Qos, performance and interoperability

Ubiquitous Connectivity Across Wired and Wireless Networks

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Borderless Mobility: CUWN TDM © 2009 Cisco Systems, Inc. All rights reserved. Cisco Confidential 3

Enterprise Mobility Solution

Internet

WAN

PSTCellularKey function:

• Single Number reach

• Single mail box

• Seamless roaming

Cellular <>WiFi

Enterprise

FMC Appl

Airport

Home

Coffee Shop

Remote Office

UC


XML

Push to Talk (PTT)PTT applications from Berbee and LiteScape

Corporate Directory

Extension Mobility

Callback

My Address Book / Fast Dials

IPCC Enterprise / IPCC Express

Quality Reporting Tool (QRT)


Custom and Off-the-Shelf Unified IP Phone Applications

Emergency Alert

Time Clock

AdvertisingReal Estate

Menu Attendance

Retail ER StatsBroadcast

www.cisco.com/go/apps

http://www.cisco.com/go/apps


New World Applications

• Time Card: Clock In / Out

• Time Off Requests

• Shift Swap Requests

• Employee Bulletins

• Employee Benefit Information

Example XML Application –

Employee Workforce Services


• Empower employees

• Competitive Advantage

• Customer Satisfaction

• Employee Satisfaction

• Revenue Generation

• Cost Controls /

Reductions

New World Applications

• On-Screen Patient Finder

• On-Screen Doctor Locator

• On-Screen Test Results

• On-Screen Test Scheduling

• On-Screen On-Call List (Priest, Doctors)

• On-Screen Equipment request and locator

• On-Screen Timecards

• On-Screen HR Information

Example XML Application –Medical and Healthcare


What about DECT!?


Digital Enhanced Cordless Telecommunications (DECT)

Protocol sponsored by ETSI for devices operating in the 1880 MHz–1930 MHz frequency (range depend on country)

Originally developed in 1992 for Europe but was adopted globally in Europe, Asia, Australia, South America, and the US

DECT solution offering extend to include:

Consumer cordless telephony with a single base station

Enterprise cordless PABXs using many base stations for coverage.

Public access, using large numbers of base stations to provide building or urban

World Enterprise DECT Phone Markets earned revenues of over of $280 million in 2007 and estimates this to reach $318 million in 2014

Sales of single mode devices is being challenged by the economic downturn and the increased growth of smartphone dual mode devices


DECT Vulnerability

Cheap laptop-based sniffer that can break into DECT cordless phones to intercept calls and information directly, and recording it in digital form. This enables anyone to sniff and archive DECT traffic (voice and/or data).

The interception can be applied to system with or without encryption. The system can bypass encryption - simply by pretending to be a base station that doesn't support it.

The attack on DECT, demonstrated at the 25th Chaos Communications Congress in Berlin on 29 December, used a Linux laptop with a modified €23 laptop card.

DECT's use of a secret encryption algorithm contributed to the problem - hence not been subject to scrutiny by outside experts

Published TechWorld, Jan 5, 2009 http://www.techworld.com/security/news/index.cfm?RSS&NewsID=108996

https://dedected.org/trac

http://www.techworld.com/security/news/index.cfm?RSS&NewsID=108996

https://dedected.org/trac


Enabling a ―Collaboration Ready‖ Wireless Platform

+Design Deploy Infrastructure

Services

+

Proven ―Know How‖

- Thousands of deployments Worldwide

Cisco‘s Services Portfolio

Specialized Wireless and UC Partners

Detailed Deployment Guides

Documented Best Practices via Step-to-Success procedures

Voice optimized Planning tools in WCS

Advanced QoS

Cisco Innovations- Fast Secure Roaming

- Assisted Roaming

Real Time RF

Voice Management Metrics

Secure, interoperable Choice of Clients


What Is a Voice Ready Wireless Network?

VOICE

READY

WLAN

Design

Deploy

Infrastructure

Services



VOICE

READY

WLAN Design


Who Needs It?

What Is Needed?

Where It Is Needed?


VOICE

READY

WLAN Design


Identify and include all stakeholders in process

Identify all functional requirements—applications, number of users, areas of coverage, security, roaming requirements, additional mobility services

Get approval and agreement on functional requirements

Who Needs It?

What Is Needed?

Where It Is Needed?


VOICE

READY

WLAN Design


Evaluate Key Areas

Break Room

(Microwave Ovens

- 2450 Mhz)

File / Supply

Room

(Large Filing or

Metal Cabinets)

Stairwells

(Reinforced

Building Area)

Elevator

Shafts Test Lab

Conference

Room

Office

CubesVIP (CEO)


Design Your Wireless Network To Be ―Voice-Ready‖

Cisco White Paper Design Principles for Voice over Wireless LAN”

http://wwwin.cisco.com/marketing/mobility/solutions/vowlan/files/designprinciplesforvoiceoverwlan_v1.pdf

VLANs Voice should be on a separate VLAN from data

QoS Need over the air, end-to-end QoS (Clients, AP‘s, Controllers, Switches, Routers)

AP Coverage Overlap coverage areas to facilitate roaming

Monitor Interference

Use WCS to control and manage RF in realtime

Capacity To handle voice+data load, use more AP‘s, and reduce transmit power

802.11a Leverage the non overlapping channels and high data rate of .a

CCX Version 4.0 Ensures high performance voice clients


WCS Solutions for Voice

Voice Audit and Configuration Check


WCS Solutions for Voice (Voice Readiness Tool)


Deploy


VOICE

READY

WLAN


RSSI at Edge

Signal Quality

Coverage and Overlap

Deploy


VOICE

READY

WLAN


Ensure coverage with dense deployment and 20% overlap of cells

Establish minimum RSSI (-65dbm) at cell edge

Manage interference to ensure low signal to noise and packet error rated

RSSI at Edge

Signal Quality

Coverage and Overlap

Deploy


VOICE

READY

WLAN


Find Out What Other RF Devices are at the Site


Ideal Environment for 802.11b/g/a/n phone clients the cell edge recommendation is -67dBm. A typical deployment showing a 10–15% overlap from each of the adjoining

cells. Provides almost complete redundancy throughout the cell.

With 5GHz there are enough channels available there should be no need to have a co-channel design, but this would the recommendation for dense 5GHz deployments and for all 2.4GHz deployments

The same design principle applies for deployments using 802.11n APs.

The separation of

same channel cells

should be: 19 dB

-67dBm -86dBm

The RADIUS

of the cell

should be:

–67 dBm

Channel 36

Channel 44

Channel 149

Channel 1

Channel 6

Channel 11

or

This example shows just 3 of the 5GHz 11a or bounded 11n channels.


SITE SURVEYS ARE CRITICAL– Sample Best Practices

RECOMMENDATIONS

Site Survey ToolsSite survey tools are available from Cisco, and 3rd

parties such as AirMagnet, that can also be used to provide additional detailed information

RF Recommendations RF walkthroughs should be performed to identify and mitigate sources of non-802.11 RF interference and rogue access points (automated tools available)

Values and specifics required for successful voice deployment are documented in deployment guide


What is channel utilization ?

It is the amount of RF energy that is on a channel time wise

This is no standard algorithm for computing channel utilization (CU)

–This means comparing the CU of one utility against another is likely to show different values

–Also the difference is most likely to be from how long the different utility sampled the channel for energy

There is a channel utilization Standard known at ‗Aloha‘ which states that a wireless channel with packet data is fully utilized with the CU has reached 36%

http://en.wikipedia.org/wiki/Aloha_protocol#The_ALOHA_protocol


Spectrum Expert – Channel Utilization


What can we do to reduce CU?

Infrastructure filters to remove un-needed protocols from the WLAN

– What WLAN would need the protocol LAT

Manage Multicast traffic

Remove when possible lower data rates

Remove higher transmit powers

Use dynamic transmit power control DTPC

Use latest client drivers

Use diversity antenna solutions


Some Layer 1 installation – Don’ts!!

Don‘t mount antennas so that they transmit directly in to metals or other highly reflective surfaces!!


NOT!!

Don‘t mount the AP1130/AP1142 horizontally. It doesn‘t become a patch antenna solution.


NOT!

This creates a ton of mulitpath and hides the AP from clients



VOICE

READY

WLAN

Infrastructure

Services


End to End—

Required in Clients and

Infrastructure


VOICE

READY

WLAN

Infrastructure

Services


End to End—

Required in Clients and

Infrastructure

Advanced QoS

Planning, Deployment, Management and Troubleshooting Tools

Roaming

Infrastructure assisted to enable clients to optimizeAP selection

Load balancing for improved performance/capacity

Low Latency L2 and L3 roaming with security

Real Time RF Visibility

Advanced Security


VOICE

READY

WLAN

Infrastructure

Services


11a/b/g – 11n Client Coexistence Is OK

11n

300 Mb54 Mb

WLAN Controller

11n

11g

Mixed mode experiences

slight performance impact

due to ABG clients

11n clients still transmit at

full performance

Move 11n clients to 5GHz,

keep legacy clients at

2.4GHz

Use Cisco BandSelect to

automatically move dual-

band clients to 5GHz


52.4

Optimized RF Utilization by Moving 5 GHz Capable Client Out of the Congested 2.4 GHz Channels

802.11n

BandSelectAccess Point Assisted 5 GHz Band Selection

Dual-Band Client Radio

2.4/5GHz

Discovery Probes

Looking for AP

Discovery

ResponseSolution

BandSelect directs clients to 5 GHz optimizing RF usage

Better usage of the higher capacity 5GHz band

Frees up 2.4 GHz for single band clients

Challenge

Dual-Band clients persistently connect to 2.4 GHz

2.4GHz may have 802.11b/g clients causing

contention

2.4GHz is prone to interference


802.11n AP1250: ClientLink

ClientLink improves the quality of link down to the phone

The signals of the multiple radios are phased together to provide a stronger and cleaner signal down to all 11a and 11g clients

Beam Forming

For all A/G

Clients

The signal is controlled to the length of a wave.Wave lengths: 2.4GHz 12.5cm/4.92in, 5GHz 2.36in/6cm


This is a Call Quality Comparison with out Client Link at 60 Feet / 20 Meters

The diversity AP1240 test showed a stronger signal level but a higher packet loss than the 3 receiver AP1250.

The MOS value was 2.96 vs. 3.34.

AP1240 AP1250


Media Session Aware (MSA)

Applicable to SIP VoIP call

Upstream: AP intercept the packet and determine VoIP call and Set QoS for Voice

Downstream: WLC intercept the packet and determine VoIP call and Set QoS for VoIP

AP track and report data to WCS for tracking purposes

Global Bandwidth Controls are on the road map

Value application

QoS setting for voice call out of a PC

Track SIP call based dialed number (e.g. 911)

Can be extended to other than Voice

Applicable for:

Available in WLC Rls 6.0

RFC 3261 compliant client

SCCP clients is not supported. Does not apply to non-WMM client

Voice

Controller

AP


WCS – Report Creation


WCS – Call Reporting Examples


News!


Cisco Unified IP Phone 9971

Key Capabilities

Elegant and intuitive ergonomic design

Interactive, multi-party H.264 business video (camera)

Vibrant high-resolution color displays

USB and Bluetooth for added convenience

Built-in 802.11 a/b/g Wi-Fi (IP Phone 9971 only)

CCXv.4 with premier audio and HD voice

Earth-friendly (deep sleep option, recyclable plastics)

Customer Benefits

Enhanced user experience

Faster decision making with video

Enhanced ROI leveraging CUWN

Advanced Collaborative Media Endpoint with Built in Wi-Fi


Key Capabilities

Certification for ATEX Zone 2 and CSA Class I Division 2 for potentially explosive environments

IP64 rating for dust/water resistance

Added freedom with Bluetooth and speakerphone

CCXv.4 with Long-life batteries to help to stay connected

Customer Benefits

Access to Cisco UC for more hazardous environments

Reduces costs while delivering added resilience

Increases productivity

Cisco Unified Wireless IP Phone 7925G-EX

Rugged, Resilient and Feature Rich


Cisco Mobile Unified Communications

CollaborateConnect Communicate

Cisco Unified Mobility

VoWLAN Cisco Webex Meeting Center

Cisco Unified Personal

CommunicatorCisco Unified Mobile

Communicator


Nokia Call Connect 2.0 for Cisco

Key Capabilities

VoWLAN and VoIP over 3G

Automatic handover between networks (select devices)

DTMF Mid-Call Features

XML Application Support

Interoperable with Cisco Unified Mobile Communicator

Customer Benefits

Reduce cellular costs with Dial via Office and VoWLAN

Productivity-enhancing features


Cisco Unified Mobile CommunicatorCisco Unified Mobile Communicator 7 for iPhone

and BlackBerry

Key Capabilities

Dial via Office

Visual business voicemail

Mobile Connect on/off setting

Presence

Directory Access

VoWLAN (~Jan 2010)

Customer Benefits

Single solution that supports a variety of smartphones

Reduce cellular costs with Dial via Office and VoWLAN

Productivity enhancing features

Supported devices: E60, E61, E70,

E65, E61i, E51, E63, E66, E71*

& E90


Cisco WebEx Meeting Center for iPhone v 1.3

Key Enhancements

Meeting handoff: transfer live WebEx web meeting on iPhone to a PC with flick of a wrist

Audio transfer from an iPhone to an IP phone supported with Single Number Reach

Join by meeting number – enter WebEx meeting number in the WebEx app for the iPhone to join the meeting

Customer Benefits

Collaborate anywhere, anytime, even on your iPhone

Let the technology adapt to your environment, whether in motion or on desktop


Learn more at:


http://cisco.partnerelearning.com

VoWLAN training is online and free.

Login via Partner link on CCO

Or directly as shown above


Main Menu of the 7 Modules

VoWLAN Training

Site Survey

VoWLAN Client Behaviors

Configuration

Troubleshooting

Basic Configuration

VoWLAN in Health Care


VoWLAN Training Material

VoWLAN & Site Survey QLM

http://cisco.partnerelearning.com/pec/Direct.asp?URL=201215733705.1147

VoWLAN Discussion Forum

https://www.myciscocommunity.com/community/partner/mobility/vowlan?view=discussions

VoWLAN Training Material

https://www.myciscocommunity.com/community/partner/mobility/vowlan?view=documents

VoWLAN CiscoWiki

http://supportwiki.cisco.com/ViewWiki/index.php/VoWLAN

Steps to Success

http://cisco.com/go/stepstosuccess







http://supportwiki.cisco.com/ViewWiki/index.php/VoWLAN

http://cisco.com/go/stepstosuccess


More Information: WLAN Design Guides

Voice over Wireless LAN 4.1 Design Guide & Enterprise Mobility 4.1 Design Guide

www.cisco.com/go/cvd - ‗Design Zone for Mobility‘

11n Design Guide

http://www.cisco.com/en/US/solutions/collateral/ns340/ns394/ns348/ns767/white_paper_80211n_design_and_deployment_guidelines.html

Design Principles for VoWLAN

http://www.cisco.com/en/US/solutions/collateral/ns340/ns394/ns348/net_implementation_white_paper0900aecd804f1a46.html

Cisco Unified Wireless IP Phone 792xG Installation Guides

www.cisco.com/en/US/products/hw/phones/ps379/prod_installation_guides_list.html

http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7925g/7_0/english/install/guide/7925ig.pdf

Cisco Unified Wireless IP Phone 792xg Deployment Guides

www.cisco.com/en/US/products/hw/phones/ps379/prod_installation_guides_list.html

http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7925g/7_0/english/deployment/guide/7925dply.pdf

http://www.cisco.com/go/cvd





http://www.cisco.com/en/US/products/hw/phones/ps379/prod_installation_guides_list.html








Cisco 5508 Wireless Controller Pricing & Licensing Changes (Summary)

250-AP Pricing

• Adjusting the pricing of 250 & 250-2PK AP SKU’s of the 5500 series controllers

• 250 AP: New price $65K, Old price $94K, 31% reduction (AIR-CT5508-250-K9)

• 250-2PK: New price $105K, Old price $169K 38% reduction (AIR-CT5508-250-2PK)

WPLUS & Mesh

Licenses

• Controller WPLUS features, now part of base license (OE, Mesh, CAPWAP Data Encryption)

• Mesh (Advanced feature license) now part of base license

• Controller WPLUS & Mesh Licenses obsolete

• Change effective with SW version 6.0.19x

5500 Licensing Flexibility

• Introducing AP capacity adder SKU’s of 25, 50 & 100 AP’s

• Pricing for new adder SKU’s: 25-AP: $12.5, 50-AP: $21.5, 100-AP: $32.5

• Adder SKU’s could be added to any of the existing base capacity SKU’s of 12, 25, 50, 100, & 250 AP capacity upto a total capacity of 250 AP’s per controller

• Change effective with SW version 6.0.19x


Documents

Wireless Voice over IP - Cisco › c › dam › global › sv_se › assets › ...wireless with RF configured for voice, Video, UC and more ... • On-Screen Test Results ... World