Avaya IP Line Fundamentals User Manual

Nortel Communication Server 1000

IP Line Fundamentals

Release: 5.0 Document Revision: 01.12

www.nortel.com

NN43100-500

Nortel Communication Server 1000 Release: 5.0 Publication: NN43100-500 Document status: Standard Document release date: 16 April 2009

Sourced in Canada

LEGAL NOTICE

While the information in this document is believed to be accurate and reliable, except as otherwise expressly agreed to in writing NORTEL PROVIDES THIS DOCUMENT "AS IS" WITHOUT WARRANTY OR CONDITION OF ANY KIND, EITHER EXPRESS OR IMPLIED. The information and/or products described in this document are subject to change without notice.

Nortel, Nortel (Logo), the Globemark, SL-1, Meridian 1, and Succession are trademarks of Nortel Networks.

All other trademarks are the property of their respective owners.

Contents

Publication history 9

Revision history 9

New in this release 13

Features 13 Other 14 Subject 14

How to get help 17

Getting help from the Nortel Web site 17 Getting help over the telephone from a Nortel Solutions Center 17 Getting help from a specialist by using an Express Routing Code 18 Getting help through a Nortel distributor or reseller 18

Description 19

Contents 19 Introduction 19

Interworking 21 Applicable systems 21 System requirements 22 System configurations 22 Software delivery 24 Required packages 25 Fax/Modem pass through 25

Voice Gateway Media Cards 28

Virtual superloops, Virtual TNs, and physical TNs 46 Licenses 47 Zones 48

April 2009 9

Structure 15

Digital Signaling Processor daughterboards 20

Modem traffic 27

Media Card 32S 37 Reliable User Datagram Protocol 44 Secure Real-time Transport Protocol 45

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Administration 49

Features 51

Contents 51 Introduction 52 Live Dialpad 54

Diagnostics 55

Unicode support 55

Pop-up and USB keyboard support 55

IP Client cookies 56

e2dsetShow () 57

New IP Phone Types 58

Unique TN Types for existing IP Phones 58 Automatic IP Phone TN conversion (Flexible Registration) 59

Manual IP Phone TN conversion 60 Active Call Failover for IP Phones 61 DSP peg counter for CS 1000E systems 84 Enhanced UNIStim Firmware Download for IP Phones 84 Firmware download using UNIStim FTP 111 NAT Traversal feature 119 Corporate Directory 136 Personal Directory, Callers List, and Redial List 137 IP Call Recording 137 pbxLink connection failure detection 146 LD 117 STAT SERV 147 IP Phone support 151

IP Phone 2001 152

IP Phone 2002 153

IP Phone 2004 154

IP Phone 2007 156

IP Audio Conference Phone 2033 157

WLAN Handsets 2210/2211/2212 158

WLAN Handsets 6120/6140 159

IP Phone 1110 160

IP Phone 1120E 161

IP Phone 1140E 162

IP Phone 1150E 163

Expansion Module for IP Phone 1100 Series 164 Element Manager support 165 Call Statistics collection 166 Programmable line/DN feature keys (self-labeled) 175 Private Zone configuration 175 Run-time configuration changes 178 Network wide Virtual Office 180

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Bandwidth Management for Network wide Virtual Office 183

Requirements 183 Branch Office and Media Gateway 1000B 183

802.1Q support 184 Data Path Capture tool 188 IP Phone firmware 188 Graceful Disable 188 Hardware watchdog timer 190 Codecs 191 Set type checking and blocking 191 Enhanced Redundancy for IP Line nodes 193

Personal Directory, Callers List, and Redial List 195

Contents 195 Introduction 195 Personal Directory 197 Callers List 198 Redial List 200 IP Phone Application Server configuration and administration 201 IP Phone Application Server database maintenance 204 Call Server configuration 208 Password administration 208

Codecs 211

Contents 211 Introduction 211 Codec configuration 213 Codec registration 214 Codec negotiation 218 Codec selection 220

Installation and configuration summary 225

Contents 225 Introduction 225 Before you begin 225 Installation summary 225 Voice Gateway Media Card installation summary sheet 228

Installation and initial configuration of an IP Telephony node231

Contents 231 Introduction 231 Equipment considerations 232 Install the hardware components 232 Initial configuration of MC 32S card 247

Configuring the Leader and Follower on the MC 32S 247 Initial configuration of IP Line data 247

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Configure the Expansion Module for IP Phone 1100 Series 261 Node election rules 264

Configuration of IP Telephony nodes using Element Manager 267

Contents 267 Introduction 267 Configure IP Line data using Element Manager 268 Transfer node configuration from Element Manager to the Voice Gateway Media

Cards 295 Upgrade the Voice Gateway Media Card software and IP Phone firmware 301 Assemble and install an IP Phone 313 Change the default IPL CLI Shell password 314 Configure the IP Phone Installer Passwords 314 Import node configuration from an existing node 314

IP Line administration 317

Contents 317 Introduction 317 IP Line feature administration 318 Password security 323 IP configuration commands 339 TLAN network interface configuration commands 339 Display the number of DSPs 340 Display IP Telephony node properties 340 Packet loss monitor 344 Transfer files using the CLI 345 Download the IP Line error log 346 Reset the Operational Measurements file 346

IP Line administration using Element Manager 347

Contents 347 Introduction 347 Element Manager administration procedures 347 Backup and restore data 358 Update IP Telephony node properties 361 Update other node properties 379 Telnet to a Voice Gateway Media Card using Virtual Terminal 379 Check the Voice Gateway Channels 380 Setting the IP Phone Installer Password 381

IP Line administration using TM 3.1 385

Contents 385 Introduction 385 TM administration procedures 385 Back up and restore TM data 399

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Add an IP Telephony node in TM by retrieving an existing node 400 IP Line CLI access using Telnet or local RS-232 maintenance port 402

Voice Gateway Media Card maintenance 405

Contents 405 Introduction 405 Faceplate maintenance display codes 406 System error messages 410 IP Line and IP Phonemaintenance and diagnostics 414 IP Line CLI commands 423 Lamp Audit and Keep Alive functions 452 Voice Gateway Media Card self-tests 456 Troubleshoot a software load failure 456 Troubleshoot an IP Phone installation 459 Maintenance telephone 459 Replace the Media Card CompactFlash 460

Voice Gateway Media Card maintenance using Element Manager 461

Contents 461 Introduction 461 Replace a Voice Gateway Media Card 461 Add another Voice Gateway Media Card 466 Access CLI commands from Element Manager 469 Access the CLI from Element Manager 479

Convert IP Trunk Cards to Voice Gateway Media Cards 481

Contents 481 Introduction 481 Before you begin 482 Convert the IP Trunk cards 482 Add the converted cards to an IP Telephony node 483

NAT router requirements for NAT Traversal feature 489

Contents 489 Description 489 Requirements 490 Natcheck output 492

I/O, maintenance, and extender cable description 495

Contents 495 Introduction 495 NTMF94EA I/O cable 495 Connector pin assignments 496 NTAG81CA maintenance cable description 499 NTAG81BA maintenance extender cable 500

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Replace the NT8D81BA cable 501

Product integrity 505

Contents 505 Introduction 505 Reliability 505 Environmental specifications 506

Subnet Mask Conversion from CIDR to Dotted Decimal Format 509

Introduction 509

Download IP Line files from Nortel Web site 511

Contents 511 Introduction 511 Download files from Nortel Web site 511

Moving Voice Gateway Media Cards between systems 513

Contents 513 Introduction 513 Reconfiguring the Voice Gateway Media Card 514

Node has Leader configured 514 Node has no Leader configured 519

Upgrading the software 525

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Publication history

Revision history

April 2009

Standard 01.12. This document is up-issued to update the LD 11 Virtual Office logon for IP Phones table.

March 2009

Standard 01.11. This document is up-issued to update the Upgrade the Voice Media Card loadware section.

February 2009

Standard 01.10. Document updated to explain why a TLAN DSP IP address is required when configuring an Voice Media Gateway Card.

January 2009

Standard 01.09. This document is up-issued to update the section Bandwidth Management for Network wide Virtual Office.

November 2008

Standard 01.08. This document is up-issued to update the warning information under section Upgrade the Voice Gateway Media Card loadware.

August 2008

Standard 01.07. This document is up-issued to add the graphic in the section Card Properties.

July 2008

Standard 01.06. This document is up-issued to update the sections IP Line Administration using Element Manager and IP Line Administration using TM3.1.

July 2008

Standard 01.05. This document is up-issued to support technical additions for CR Q01884316. Removing read-only attributes from VCGM flash memory card

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10 Publication history

July 2008

Standard 01.04. This document is up-issued to support technical additions for CR Q01896401.

May 2008

This document is up-issued to support technical additions for CR Q01877613-01.

November 2007

Standard 01.03. This document is up-issued to support Communication Server 1000 Release 5.0. This document is reflects updated technical content: removal of G729 AB codec support for the IP Audio Conference Phone 2033 and wrong command ed2setShow, and an update to IP Peer calls.

June 2007

Standard 01.02. This document is up-issued to support Communication Server 1000 Release 5.0. This document includes an update to the IP Phone firmware upgrade procedures.

May 2007

Standard 01.01. This document is issued to support Communication Server 1000 Release 5.0. This document is renamed IP Line Fundamentals (NN43100-500) and contains information previously contained in the following legacy document, now retired: (553-3001-365). This document also contains the solution for CR Q01504212.

December 2006

Standard 10.00. This document is up-issued to support CS 1000 Release

4.5. This document addresses the following CRs:

• Q01512086

•

Q01452824

July 2006

Standard 9.00. This document is up-issued to address the following CRs:

• Q01368947

• Q01349604

May 2006

Standard 8.00. This document is up-issued to reflect changes to the IPL> CLI default user name and password.

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April 2006

Standard 7.00. This document is up-issued to reflect changes in technical content due to the following CRs:

• Q01270071

• Q01285983

• Q01318230

January 2006

Standard 6.00. This document is up-issued to reflect changes in technical content due to the following CRs:

• Q01206792

• Q01259132

•

Q01131032

August 2005

Standard 5.00. This document is up-issued following the removal of regulatory data.

Revision history 11

August 2005

Standard 4.00. This document is up-issued to support Nortel Communication Server 1000 Release 4.5.

September 2004

Standard 3.00. This document is up-issued to support Nortel Networks Communication Server 1000 Release 4.0.

May 2004

Standard 2.00. This document is up-issued to support the Nortel Networks Mobile Voice Client 2050 (MVC 2050).

October 2003

Standard 1.00. This document is a new NTP for Succession 3.0. It was created to support a restructuring of the Documentation Library. This document contains information previously contained in the following legacy document, now retired: IP Line: Description, Installation and Operation (553-3001-204).

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12 Publication history

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New in this release

The following sections detail what is new in IP Line Fundamentals (NN43100-500) for CS 1000 Release 5.0.

•

“Features” (page 13)

•

“Other” (page 14)

Features

See the following sections for information about the feature changes.

Live Dialpad

Live Dialpad activates the line/DN key when the user makes a call by pressing the keys on the dialpad without lifting the handset, pressing a line/DN key, or pressing the handsfree key. For further information, see

“Live Dialpad” (page 54).

Unicode support

Unicode support provides the ability for IP Phone 1110, IP Phone 1120E, IP Phone 1140E, IP Phone 1150E, and IP Phone 2007 to display characters for languages with complex fonts. The following languages are supported on the IP Phones with Unicode capabilities: Traditional Chinese, Simplified Chinese, Arabic, Japanese, Greek, Korean, and Hebrew. For further information, see “Unicode support” (page 55).

IP client cookies

IP client cookies provide transparent data transfer between the CS 1000 and third-party applications, for example, Citrix AG. For further information, see “IP Client cookies” (page 56).

New IP Phone types

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14 New in this release

IP Phones are provided with unique Terminal Number (TN) types. IP Phones are no longer required to emulate one of five IP Phones. For further information, see “New IP Phone Types” (page 58).

Other

IP Line Fundamentals for CS 1000 Release 5.0. includes the following changes:

•

• Removed the following sections of TM 3.1, which are not supported

•

Rebranded OTM 2.2 to TM 3.1.

in CS 1000 Release 5.0:

—

Configuration of IP Telephony nodes using TM 3.1 section

— Update IP Telephony node properties using TM 3.1 — Update Voice Gateway Media Card properties — Voice Gateway Media Card maintenance using TM 3.1

Added the Media Card 32S for SRTP support. Updated Element Manager with enhancements.

Subject

•

Added support for Enterprise Common Manager (ECM).

•

Added new IP Phones, and Expansion Module for IP Phone 1100 Series.

•

Updated IP Phone firmware upgrade process, which is enhanced to be IP Telephony Node specific.

•

Removed instances of CS 1000S.

•

Removed instances of Meridian 1.

•

Removed instances of Media Card 8-port line card.

• Removed instances of IP Phone firmware download from the Voice

Gateway Media Card.

This document:

• describes the physical and functional characteristics of the IP Line

application for Nortel Communication Server (CS) 1000 Release 5.0 system and describes its use on Signaling Servers and Voice Gateway Media Cards.

• explains how to engineer, install, configure, administer, and maintain

an IP Telephony node that contains Voice Gateway Media Cards.

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Structure

This document has separate chapters that are applicable only to either Telephony Manager (TM) 3.1 or Element Manager.

The configuration, administration, and maintenance sections are divided into two chapters. For example, a generic configuration chapter deals with tasks related to the installation and configuration of IP Line. This chapter is followed by the configuration chapter for Element Manager. The administration and maintenance chapters have the same format.

Note on legacy products and releases

This NTP contains information about systems, components, and features that are compatible with Nortel Communication Server 1000 Release 5.0 software. For more information about legacy products and releases, click the Technical Documentation link under Support & Training on the Nortel home page: w

Related information

The following documents are referenced in this document:

• Converging the Data Network with VoIP Fundamentals (NN43001-260)

Subject 15

ww.nortel.com

•

Transmission Parameters Reference (NN43001-282)

•

Signaling Server Installation and Commissioning (NN43001-312)

•

Branch Office Installation and Commissioning (NN43001-314)

•

Telephony Manager 3.1 System Administration (NN43050-601)

•

WLAN IP Telephony Installation and Commissioning (NN43001-504)

•

Emergency Services Access Fundamentals (NN43001-613)

•

Element Manager System Reference—Administration (NN43001-632)

•

Enterprise Common Manager Fundamentals (NN43001-116).

•

IP Phones Fundamentals (NN43001-368),

•

Software Input Output Reference—System Messages (NN43001-712)

• Communication Server 1000M and Meridian 1 Small System Planning

and Engineering (NN43011-220)

• Communication Server 1000M and Meridian 1 Large System Planning

and Engineering (NN43021-220)

• Communication Server 1000M and Meridian 1 Large System

Maintenance (NN43021-700)

• Communication Server 1000E Planning and Engineering

(NN43041-220)

• IP Phone 2001 User Guide (NN43115-102)

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16 New in this release

• IP Phone 2002 User Guide (NN43116-104)

• IP Phone 2004 User Guide (NN43117-102)

• IP Phone 2007 User Guide (NN43118-100)

•

• IP Softphone 2050 User Guide (NN43119-101)

• Mobile Voice Client 2050 User Guide (NN43119-103)

• IP Phone 1110 User Guide (NN43110-101)

•

• IP Phone 1150E User Guide (NN43114-100)

• IP Phone Key Expansion Module User Guide (NN43119-102)

•

IP Audio Conference Phone 2033 User Guide (NN43111-100)

IP Phone 1120E User Guide (NN43112-103) IP Phone 1140E User Guide (NN43113-106)

Expansion Module for IP Phone 1100 Series User Guide (NN43130-101)

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How to get help

This chapter explains how to get help for Nortel products and services.

Getting help from the Nortel Web site

The best way to get technical support for Nortel products is from the Nortel Technical Support Web site:

ww.nortel.com

This site provides quick access to software, documentation, bulletins, and tools to address issues with Nortel products. From this site, you can:

• download software, documentation, and product bulletins

•

search the Technical Support Web site and the Nortel Knowledge Base for answers to technical issues

•

open and manage technical support cases

Getting help over the telephone from a Nortel Solutions Center

If you do not find the information you require on the Nortel Technical Support Web site, and you have a Nortel support contract, you can also get help over the telephone from a Nortel Solutions Center.

In North America, call 1-800-4NORTEL (1-800-466-7835). Outside North America, go to the following Web site to obtain the

telephone number for your region:

ww.nortel.com/callus

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18 How to get help

Getting help from a specialist by using an Express Routing Code

To access some Nortel Technical Solutions Centers, you can use an Express Routing Code (ERC) to quickly route your call to a specialist in your Nortel product or service. To locate the ERC for your product or service, go to:

ww.nortel.com/erc

Getting help through a Nortel distributor or reseller

If you purchased a service contract for your Nortel product from a distributor or authorized reseller, contact the technical support staff for that distributor or reseller.

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Description

Contents

This section contains the following topics:

•

“Introduction” (page 19)

• “Interworking” (page 21)

•

“Applicable systems” (page 21)

• “System requirements” (page 22)

•

“System configurations” (page 22)

• “Software delivery” (page 24)

•

“Required packages” (page 25)

• “Voice Gateway Media Cards” (page 28)

•

“Virtual superloops, Virtual TNs, and physical TNs” (page 46)

•

“Licenses” (page 47)

•

“Zones” (page 48)

•

“Administration” (page 49)

Introduction

Communication Server (CS) 1000 Release 5.0 requires the IP Line application.

The IP Line application provides an interface that connects IP Phones to a CS 1000 Call Server.

CS 1000 Release 5.0 requires a Signaling Server to operate. You must upgrade your Meridian 1 system, if your system is IP enabled to include a Signaling Server, which in turn becomes a CS 1000M system. CS 1000 Release 5.0 is supported on an analog/digital (TDM) only system without a Signaling Server if the system is not IP enabled. For information about upgrading your system, see Communication Server 1000M and Meridian 1

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20 Description

Digital Signaling Processor daughterboards

Small System Planning and Engineering (NN43011-220)or Communication Server 1000M and Meridian 1 Large System Planning and Engineering (NN43021-220).

ATTENTION

The IP Line version of software must match the Call Server version.

CS 1000 Release 5.0 introduces Digital Signaling Processor (DSP) daughterboards, which are placed on the Media Gateway Controller (MGC) to provide DSP resources for connecting IP and Time Divisional Multiplexing (TDM) devices together in a CS 1000E Media Gateway (MG 1000E) system. The following DSP daughterboards are available:

•

32 port daughterboard

•

96 port daughterboard

These daughterboards provide an optional solution to installing the Voice Gateway Media Cards within the CS 1000E Media Gateway (MG 1000E) chassis. However, Voice Gateway Media Cards are still supported within an MG 1000E with a Media Gateway Controller (MGC) and DSP daughterboards. The MGC is only used in a Media Gateway chassis or an Option 11C cabinet.

For further information about DSP resources residing on the MGC that are configured with DSP daughterboards, see Communication Server 1000E

Installation and Commissioning (NN43041-310).

Voice Gateway Media Cards

If a Media Card 32-port card, a ITG-P 24-port card, or a Media Card 32S is running IP Line software, it is known as a Voice Gateway Media Card.

In this document, Media Card 32-port card and Media Card 32S card are referred to as Media Card 32-port cards, unless explicitly stated.

DHCP server

A Dynamic Host Configuration Protocol (DHCP) server can be used to provide the required information so that the IP Phonenetwork connection can connect to the Signaling Server or Line Terminal Proxy Server (LTPS).

For more information about DHCP, see Converging the Data Network

with VoIP Fundamentals (NN43001-260)and IP Phones Fundamentals (NN43001-368).

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Interworking

The IP Phoneuses the IP network to communicate with the LTPS and the optional DHCP server. Figure 1 "System architecture" (page 21) shows a diagram of the system architecture.

Figure 1 System architecture

Applicable systems 21

Applicable systems

The CS 1000 system supports the Media Card 32-port line card, Media Card 32S card, and ITG-Pentium 24-port line card.

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22 Description

Unsupported products

The following remote service products do not support the Media Card 32-port line card, Media Card 32S card, and ITG-Pentium 24-port line card:

• Carrier Remote

• Mini-carrier Remote

• Fiber Remote

•

Fiber Remote Multi-IPE

System requirements

CS 1000 Release 5.0 software is the minimum system software for IP Line.

Element Manager and Telephony Manager 3.1

In CS 1000 Release 5.0, Element Manager is the primary interface for Voice Gateway Media Cards and IP Line.

Telephony Manager (TM) 3.1 is used only to obtain Operational Measurement (OM) reports. TM 3.1 is the minimum required version.

CS 1000systems

Element Manager is used as the configuration, administration, and maintenance interface for IP Line on a CS 1000system.

If you are trying to use TM 3.1 to perform an action available through Element Manager, then TM 3.1 launches Element Manager automatically.

Corporate Directory

TM 3.1 is necessary for creation of the Corporate Directory database.

SNMP and alarms

Element Manager does not provide an SNMP alarm browser. Nortel recommends you use TM 3.1 Alarm Manager when SNMP alarm collection is required.

System conﬁgurations

Although IP Line can be used in different system configurations and its use can vary in those configurations, there are two basic system configurations supported in CS 1000 Release 5.0 . See Table 1 "Possible system

configurations" (page 23).

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Table 1 Possible system configurations

System Signaling Server present

CS 1000E Yes CS 1000M Yes

CS 1000systems

CS 1000systems have a Signaling Server in their network configuration. The Signaling Server is a server that provides signaling interfaces to the IP network. The Signaling Server central processor drives the signaling for IP Phones and IP Peer networking.

In IP Line, the LTPS executes on the Signaling Server, and the voice gateway executes on the Voice Gateway Media Cards. All IP Phones register with the Signaling Server. The Voice Gateway Media Cards only provide access to the voice gateway.

The Signaling Server is the node leader and, by default, acts as a Master for the node.

System configurations 23

Signaling Servers

The following Signaling Servers are available for CS 1000 Release 5.0:

• ISP1100

•

HP-DL320-G4

•

IBM-X306m

•

Common Processor Pentium Mobile (CP PM)

For further information about Signaling Server hardware platforms, see Signaling Server Installation and Commissioning (NN43001-312).

In a CS 1000 system, the Signaling Servers can be used in Leader/Follower and Primary/Alternate/Failsafe combinations.

In CS 1000 Release 5.0 , the Signaling Servers support the following applications:

• Line Terminal Proxy Server (LTPS)

• Virtual Trunk

• H.323 Gateway

• SIP Gateway

• SIP Redirect Server

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24 Description

• Network Routing Service (NRS)

• Personal Directory

• SIP Proxy Server (SPS)

•

Element Manager

Signaling Server redundancy Signaling Server redundancy ensures that telephony services can withstand single hardware and network failures. Several Signaling Servers can load share when the system contains multiple Signaling Servers or Voice Gateway Media Cards. One Signaling Server is a Leader Signaling Server that acts as the primary, or master, Terminal Proxy Server (TPS). The other Signaling Server is a Follower Signaling Server that acts as the backup, or secondary redundant TPS. There are several methods of redundancy for a Signaling Server. See Table 2 "Methods of Signaling Server redundancy" (page 24).

Table 2 Methods of Signaling Server redundancy

Stage With a Signaling Server to share the load

Without a Signaling Server to share the load

Description

A Signaling Server, which shares the load, can be configured in a normal configuration.

If the primary Signaling Server fails, the Signaling Server, which shares the load, takes over and all IP Phones register with this Signaling Server.

If the Signaling Server, which shares the load, fails, one of the Voice Gateway Media Cards is elected to be the node Master.

The IP Phones then register to the Voice Gateway Media Cards.

If there is no Signaling Server to share the load, and the primary Signaling Server fails, one of the Voice Gateway Media Cards is elected to be the node Master.

The IP Phones then register to the Voice Gateway Media Cards.

Software delivery

IP Line supports software delivery through the following formats:

1. CompactFlash

2. Signaling Server CD-ROM

3. Download from the Nortel Web site

Standalone IP Line software is not available through CD-ROM.

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Required packages

The IP Phones require the software packages listed in Table 3 "Required

packages" (page 25).

Table 3 Required packages

Package Package number

Fax/Modem pass through 25

M2000 Digital Sets (DSET) Aries Digital Sets (ARIE)

ATTENTION

To configure IP Line in groups five to seven on Option 81C CP PII or CS 1000M MG, the Fiber Network (FIBN) software package 365 is required.

Fax/Modem pass through

The Fax/Modem pass through feature provides a modem pass through allowed (MPTA) class of service (CLS) for an analog phone TN. MPTA CLS dedicates an analog phone TN to a modem or a Fax machine terminal. A connection that initiates from the dedicated TN, and/or calls that terminate at the dedicated TN through a Digital Signal Processor (DSP), use a G711 NO VAD codec on the Call Server.

Modem Pass through is a specific configuration of a G.711 VoIP channel that improves modem performance compared to standard VoIP configuration. Auto switch to Voice Band Data (VBD) is a feature of the DSP; the DSP monitors the data stream to distinguish between voice and data calls. The DSP reconfigures to modem pass through mode when it determines the call is a modem call.

170

The DSP mode on the Mindspeed DSP (MC32S/DB96/DB32) for MPTA to MPTA fax/modem calls displays ModemPT in the dspMode field of the vgwShow command. The Teology DSP (ITGSA) displays PassThrough.

For modem calls between CS 1000 systems connected by analog and digital trunks, you must configure MPTA CLS on the Call Server of each CS 1000 system for analog units connected to modems. MPTA CLS configuration is necessary because the call setup negotiation is not done end to end as it is for virtual trunks. If the analog unit on one Call Server uses MPTA CLS and the analog unit on the other Call Server uses modem pass through denied (MPTD) CLS, the modem call fails.

When MPTA CLS is configured on a TN, the T.38 protocol is no longer supported for that particular TN. Any call setup with an analog phone TN that has MPTA configured must use G711 Codec exclusively, as this is the only codec available for making calls using this TN. G711 codec is present by default in the DSP configuration.

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26 Description

To ensure proper functioning of the MPTA CLS, the Enable Modem/Fax pass through mode check box must be selected in the Gateways section of Element Manager. This check box is selected by default in Element Manager. To enable SG3 fax calls over Teology DSP, the Enable V.21 FAX tone detection check box in Element Manager must be selected. For SMC and MC32S cards, this setting is available in the Voice Gateway and IP phone codec profile section in the Nodes summary page. In the modem pass through mode of operation, the DSP state is displayed as MPT on the MGC and MC32S cards and as PassThru on SMC cards.

MPTA CLS is not supported through Telephony Manager (TM) and Basic Client Configuration (BCC). BCM 50 only supports modem pass through over G.711 in Release M50R3.

MPT CLS is supported by the G.711 codec only; MPT CLS includes no other codecs. The packet interval for G.711 codec is set to 20 msecs in MPT.

The maximum speed supported for modem and fax is 33.6 Kbps. This limit is imposed by the analog line card.

MPT allows CS 1000 to support the following:

• modem pass through

•

Super G3(SG3) fax at V.34(33.6Kbps)

• V.34 rate (33.6 Kbps) modems

•

Fax machines that support V.17, V.27, V.29, and V.34

Note: MPT CLS is not be supported on IP trunks.

When the TN on the CS 1000 is configured with MPTA CLS, it supports V.17, V27 and V29 Fax calls. However, the DSP mode is “FaxBegin,” not “ModemPT”. The MPTA CLS forces calls originated or terminated on the TN to use the G.711 NO VAD Codec. This codec selection supersedes the existing bandwidth management strategy on the CS 1000.

When a CS 1000E is inter-connected with a system from a different vendor, the modem pass through feature works if the third party system supports the modem pass through mode of operation.

The Voice Gateway application displays different Auto-switch states (ModemPT, Passthru) in the dspMode field of the vgwShow command, based on tones detected by the DSP. These tones are generated by modem and fax machines connected in the TDM domain. The Voice Gateway application does not control Auto-switch states during fax and modem calls, and the dspMode reports tone indications from DSP. The

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Mindspeed DSP sends tone detection events to the host processor and changes to Modem Passthough and Pass-through auto-switch states (with or without Redundancy), based on the tones detected, as it is configured in Auto-switch mode.

For interface commands, responses, and definitions for MPT, see Table 4

"Interface commands and responses" (page 27).

Table 4 Interface commands and responses

Fax/Modem pass through 27

Command prompt

CLS MPTA Turn on the MPT feature. CLS MPTD Turn off the MPT feature.

User response Description

ATTENTION

CLS MPTA and CLS MPTD are included in LD 10 for analog line card units. MPTA to MPTA and MPTA to MPTD fax/modem calls succeed over the G.711

codec in ModemPT DSP mode. However; MPTD to MPTD modem calls fail. MPTD to MPTD fax calls succeed (best effort) over G.711 if the Enable

Modem/Fax pass through mode and Enable V.21 FAX tone detection options are set to ON in the gateway. If the Enable Modem/Fax pass through mode is unchecked, the fax call goes over the T.38 codec. The T.38 fax codec is recommended for fax calls over SIP and H323 trunks. To select the T.38 fax codec, the analog line units at both originating and terminating systems must be set to MPTD CLS.

For information on feature packaging requirements, see Table 5 "Feature

packaging requirements" (page 27).

Table 5 Feature packaging requirements

Package mnemonic

Package number

Package description Package type

(new, existing, or dependency)

Applicable market

Softswitch

IPMG

402

403

Modem trafﬁc

CS 1000E supports modem traffic in a campus-distributed network with the following characteristics:

• Media card configuration:

Identifies a softswitch system.

Identifies a system that is equipped with IPMGs.

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Existing All

28 Description

— G.711 codec —

20 msec packet size

•

one-way delay less than 5 msec

• low packet loss

•

V.34 rate (33.6 Kbps)

Performance degrades significantly with packet loss (must be less than

0.5%) and when the delay (round trip) is greater than 50 msec and mean jitter is greater than 5msec.

ATTENTION

Nortel has conducted extensive but not exhaustive tests of modem-to-modem calls, data transfers, and file transfers between a CS 1000E and MG 1000E, using Virtual Trunks and PRI tandem trunks. While all tests have been successful, Nortel cannot guarantee that all modem brands will operate properly over all G.711 Voice over IP (VoIP) networks. Before deploying modems, test the modem brand within the network to verify reliable operation. Contact your system supplier or your Nortel representative for more information.

Voice Gateway Media Cards

Voice Gateway Media Card is a term used to encompass the Media Card 32-port card, ITG-P 24-port line card, and the Media Card 32S card. These cards plug into an Intelligent Peripheral Equipment (IPE) shelf in the CS 1000Msystems and into a Media Gateway 1000E and Media Gateway 1000E Expander in the CS 1000E system.

The ITG-P 24-port line card occupies two slots, while the Media Card 32-port and the Media Card 32S card occupy one slot.

The Media Card 32S card provides the following features:

•

Secure Real-time Transport Protocol (SRTP)

•

two Digital Signal Processors (DSP), based on an ARM processor

• channel density of 32 ports

• cost improvement over existing Media Cards

The Media Card 32-port card provides the following features:

• 32-port card packet processing power is greater than that of the ITG-P

24-port line card

• increases the channel density from 24 to 32 ports (for the 32-port

version)

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Table 6 Card comparison

Voice Gateway Media Cards 29

• reduces the slot count from a dual IPE slot to a single IPE slot

• supports up to 128 IP Phones in failover scenarios

Table 6 "Card comparison " (page 29) provides a comparison of the ITG-P

24-port line card, Media Card 32-port card, and the MC 32S card.

Item

Total DSP Channels Number of slots the

card occupies Operating System VxWorks 5.3 VxWorks 5.4 VxWorks 5.5 Processor Pentium IXP1200 ARM920T

DSP 8 x TI5409 4 x TI5421 32 DSP channels

Telogy version

ITG-P 24-port card Media Card 32-port

card

24 32 32 211

7.01

8.1 High Density version (8 ports for each DSP)

Media Card 32S card

Contains two ARM processors, one that runs VxWorks and one that runs the Mindspeed application.

provided on a second processor

DSP code is provided by Mindspeed.

Number of IP Phones that can register on each LTPS

The IP Phones register to the Signaling Server. If the Signaling Server fails, the IP Phones register to the Voice Gateway Media Card. A Signaling Server can register a maximum of 5000 IP Phones.

Image file name prefixes shown by swVersionShow command

/C: drive On board Flash 2 x

Upgrade Two images files One image file (no

96 128 128

IPL P IPL SA IPL ARM

4MB

Plug-in CompactFlash 32 MB

backup)

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CompactFlash 128 MB

One zipped package

30 Description

ATTENTION

In a CS 1000 system, the ELAN (Embedded LAN) subnet isolates critical telephony signaling between the Call Server and the other components. The ELAN subnet is also known as the Embedded LAN subnet. The TLAN (Telephony LAN) subnet carries telephony, voice, and signaling traffic. The TLAN subnet, also known as the Voice LAN subnet, connects to the customer network.

Voice Gateway Media Cards have an ELAN network interface (10BaseT) and a TLAN network interface (10/100BaseT) on the I/O panel.

There is an RS-232 Maintenance Port connection on the faceplates of both the ITG-P 24-port card and the Media Cards. The ITG-P 24-port card has an alternative connection to the same serial port on the I/O backplane.

CAUTION

Do not connect maintenance terminals to both the faceplate and the I/O panel serial maintenance port connections at the same time.

Capacity

The Virtual TN (VTN) feature allows each Voice Gateway Media Card to support more IP Phones than there are physical bearer channels. There are 24 bearer channels on each ITG-P card and 32 channels on each Media Card.

Both cards support a 4:1 concentration of registered IP Phones (IP Phone 2001, IP Phone 2002, IP Phone 2004, IP Phone 2007, IP Audio Conference Phone 2033, IP Softphone 2050, Mobile Voice Client [MVC] 2050, IP Phone 1110, IP Phone 1120E, IP Phone 1140E, IP Phone 1150E, WLAN Handset 2210, WLAN Handset 2211, WLAN Handset 2212, WLAN Handset 6120, WLAN Handset 6140 to gateway channels. The ITG-P supports 96 registered IP Phones. The Media Cards supports 128 registered IP Phones (when the card has 32 channels). The IP Phones require the services of the bearer channels only when they are busy on a call that requires a Time Division Multiplexing (TDM) circuit such as an IP Phone-to-digital telephone/trunk/voice mail/conference. When an IP Phone is idle or there is an IP-to-IP call, no gateway channel is required.

When the total number of IP Phones that are registered or are attempting to register reaches the limit (96 on the ITG-P or 128 on the Media Cards), the Voice Gateway Media Card recognizes this, and no more IP Phones are assigned to the card. Each Voice Gateway Media Card is restricted to a total of 1200 call attempts per hour distributed across all the IP Phones associated with the card.

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