3com VCX V7122 User manual

V7122 Gateway

User Guide

System Release 5.0

http://www.3com.com

Part Number 900-0484-01 Rev AA

Published December 2007

2

V7122 GatewayUser Guide

3Com Corporation, 350 Campus Drive, Marlborough MA 01752-3064

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V7122 Gateway User Guide

3

C

ONTENTS

CONTENTS 3

ABOUT THIS GUIDE 15

How to Use This Guide 15

Conventions 16

Model Numbers for the V7122 Gateways 16

Documentation Comments 17

Notices 18

WEEE EU Directive 18

Abbreviations and Terminology 18

CHAPTER 1: OVERVIEW 19

V7122 Overview 19

TP-1610 Overview 20

TP-260 Overview 21

SIP Overview 22

Features 23

General Features 23

PSTN-to-SIP Interworking Features 24

Supported SIP Features 25

CHAPTER 2: PHYSICAL DESCRIPTION 29

V7122 Physical Description 29

The V7122 Chassis 30

Optional CPU Board 31

TP-1610 Physical Description 31

TP-1610 Front Panel LED Indicators 32

Rear Transition Module 34

TP-260 Physical Description 36

TP-260 LEDs 37

Reader’s Notes 39

CHAPTER 3: INSTALLATION 41

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Installing the V7122 41

Unpacking 42

Package Contents 42

Mounting the V7122 Gateway 43

Cabling the V7122 Gateway 45

Installing the TP-1610 51

Unpacking 52

Package Contents 52

Installing the TP-1610 52

Cabling the TP-1610 54

Installing the TP-260 54

Unpacking 55

Package Contents 55

Installing the TP-260 55

Cabling the TP-260 56

Reader’s Notes 58

CHAPTER 4: GETTING STARTED 59

Configuration Concepts 59

Assigning the an IP Address to the Gateway 60

Assigning an IP Address Using HTTP 60

Assigning an IP Address Using BootP 61

Assigning an IP Address Using the CLI 61

Configuring the Gateway’s Basic Parameters 63

Reader’s Notes 66

CHAPTER 5: WEB MANAGEMENT 67

Computer Requirements 67

Protection and Security Mechanisms 67

User Accounts 68

Limiting the Embedded Web Server to Read-Only Mode 69

Disabling the Embedded Web Server 69

Accessing the Embedded Web Server 69

Using Internet Explorer to Access the Embedded Web Server 70

Getting Acquainted with the Web Interface 71

Main Menu Bar 72

Saving Changes 72

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5

Searching Configuration Parameters 73

Entering Phone Numbers in Various Tables 74

Protocol Management 74

Protocol Definition Parameters 75

Advanced Parameters 76

Number Manipulation Tables 76

Mapping NPI/TON to Phone-Context 81

Configuring the Routing Tables 83

Configuring the Profile Definitions 92

Configuring the Trunk Group Table 98

Configuring the Trunk Group Settings 99

Advanced Configuration 101

Configuring the Network Settings 101

Configuring the Media Settings 105

Configuring the Trunk Settings 105

Configuring SS7 Tunneling 108

Configuring the TDM Bus Settings 112

Restoring and Backing up the Gateway Configuration 113

Regional Settings 114

Security Settings 116

Configuring the Management Settings 120

Status & Diagnostic 123

Gateway Statistics 123

Monitoring the Gateway’s Trunks & Channels 127

Activating the Internal Syslog Viewer 129

Device Information 130

Viewing the Ethernet Port Information 131

Software Update Menu 132

Software Upgrade Wizard 132

Auxiliary Files 137

Updating the Software Upgrade Key 139

Maintenance 139

Locking and Unlocking the Gateway 139

Saving Configuration 141

Resetting the Gateway 142

Logging Off the Embedded Web Server 143

Reader’s Notes 144

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CHAPTER 6: THE GATEWAY’S INI FILE CONFIGURATION 145

Secured ini File 145

Modifying an ini File 145

The ini File Content 146

The ini File Structure 147

The ini File Structure Rules 147

The ini File Example 147

Networking Parameters 148

System Parameters 160

Web and Telnet Parameters 166

Security Parameters 168

RADIUS Parameters 171

SNMP Parameters 172

SIP Configuration Parameters 174

Voice Mail Parameters 201

ISDN and CAS Interworking-Related Parameters 203

Number Manipulation and Routing Parameters 213

E1/T1 Configuration Parameters 223

Channel Parameters 231

Configuration Files Parameters 237

Reader’s Notes 239

CHAPTER 7: USING BOOTP / DHCP 241

BootP/DHCP Server Parameters 241

Using DHCP 243

Using BootP 244

Upgrading the 244

Gateway 244

Vendor Specific Information Field 244

Reader’s Notes 246

CHAPTER 8: TELEPHONY CAPABILITIES 247

Working with Supplementary Services 247

Call Hold and Retrieve Features 247

Call Transfer 248

Configuring the DTMF Transport Types 248

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Fax & Modem Transport Modes 250

Fax/Modem Settings 250

Event Notification using X-Detect Header 252

ThroughPacket™ 254

Dynamic Jitter Buffer Operation 254

Configuring the Gateway’s Alternative Routing (based on Connectivity and QoS) 256

Alternative Routing Mechanism 256

Determining the Availability of Destination IP Addresses 256

PSTN Fallback as a Special Case of Alternative Routing 257

Relevant Parameters 257

Call Detail Report 257

Supported RADIUS Attributes 259

RADIUS Server Messages 261

Trunk to Trunk Routing Example 261

Proxy or Registrar Registration Example 262

SIP Call Flow Example 263

SIP Authentication Example 266

Reader’s Notes 270

CHAPTER 9: NETWORKING CAPABILITIES 271

Ethernet Interface Configuration 271

Ethernet Interface Redundancy 272

NAT (Network Address Translation) Support 272

STUN 273

First Incoming Packet Mechanism 274

No-Op Packets 275

Point-to-Point Protocol over Ethernet (PPPoE) 275

Point-to-Point Protocol (PPP) Overview 275

PPPoE Overview 276

PPPoE in 3Com Gateways 277

IP Multicasting 278

Robust Reception of RTP Streams 278

Multiple Routers Support 278

Simple Network Time Protocol Support 279

IP QoS Using Differentiated Services (DiffServ) 279

VLANS and Multiple IPs 280

Multiple IPs 280

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IEEE 802.1p/Q (VLANs and Priority) 280

Getting Started with VLANS and Multiple IPs 282

Reader’s Notes 287

CHAPTER 10: ADVANCED PSTN CONFIGURATION 289

Gateway Clock Settings 289

ISDN Overlap Dialing 290

Using ISDN NFAS 290

NFAS Interface ID 291

Working with DMS-100 Switches 292

Redirect Number and Calling Name (Display) 293

Reader’s Notes 294

CHAPTER 11: ADVANCED SYSTEM CAPABILITIES 295

Restoring Networking Parameters to their Initial State 295

Establishing a Serial Communications Link with the Gateway 295

Automatic Update Mechanism 296

Startup Process 298

Using Parameter Tables 301

Table Indices 301

Table Permissions 302

Dynamic Tables vs. Static Tables 302

Secret Tables 302

Using the ini File to Configure Parameter Tables 303

Customizing the V7122 Web Interface 305

Replacing the Main Corporate Logo 305

Replacing the Background Image File 307

Customizing the Product Name 309

Modifying ini File Parameters Using the Web AdminPage 309

Software Upgrade Key 310

Backing up the Current Software Upgrade Key 311

Loading the Software Upgrade Key 311

Verifying that the Key was Successfully Loaded 313

Troubleshooting an Unsuccessful Loading of a Key 313

Abort Procedure 314

Reader’s Notes 315

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CHAPTER 12: SPECIAL APPLICATIONS 317

TDM Tunneling 317

Implementation 317

SS7 Tunneling 319

MTP2 Tunneling Technology 320

SS7 Characteristics 321

SS7 Parameters 321

SS7 Parameter Tables 323

SS7 MTP2 Tunneling ini File Example 328

QSIG Tunneling 330

Implementation 330

Reader’s Notes 332

CHAPTER 13: SECURITY 333

IPSec and IKE 333

IKE 334

IPSec 335

Configuring the IPSec and IKE 335

SSL/TLS 345

SIP Over TLS (SIPS) 345

Embedded Web Server Configuration 345

Secured Telnet 346

Server Certificate Replacement 346

Client Certificates 348

SRTP 349

RADIUS Login Authentication 350

Setting Up a RADIUS Server 350

Configuring RADIUS Support 352

Internal Firewall 353

Network Port Usage 355

Recommended Practices 356

Legal Notice 357

Reader’s Notes 358

CHAPTER 14: DIAGNOSTICS 359

Self-Testing 359

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Syslog Support 360

Syslog Servers 361

Operation 361

Reader’s Notes 362

CHAPTER 15: SNMP-BASED MANAGEMENT 363

SNMP Standards and Objects 363

SNMP Message Standard 363

SNMP MIB Objects 364

SNMP Extensibility Feature 365

Carrier Grade Alarm System 365

Active Alarm Table 366

Alarm History 366

Cold Start Trap 367

Third-Party Performance Monitoring Measurements 367

Total Counters 368

TrunkPack-VoP Series Supported MIBs 368

Traps 371

SNMP Interface Details 374

SNMP Community Names 375

SNMP v3 USM Users 377

Trusted Managers 379

SNMP Ports 382

Multiple SNMP Trap Destinations 382

SNMP Manager Backward Compatibility 385

Dual Module Interface 385

SNMP NAT Traversal 386

SNMP Administrative State Control 386

Node Maintenance 386

Graceful Shutdown 387

3Com’s Element Management System 388

Reader’s Notes 389

CHAPTER 16: CONFIGURATION FILES 391

Configuring the Call Progress Tones 391

Format of the Call Progress Tones Section in the ini File 392

Prerecorded Tones (PRT) File 395

V7122 Gateway User Guide

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PRT File Format 395

Voice Prompts File 395

CAS Protocol Configuration Files 396

User Information File 396

Reader’s Notes 398

APPENDIX A: SELECTED TECHNICAL SPECIFICATIONS 399

General Specifications 399

V7122 Specifications 401

TP-1610 Specifications 403

TP-260 Specifications 405

Reader’s Notes 406

APPENDIX B: SUPPLIED SIP SOFTWARE KIT 407

Reader's Notes 408

APPENDIX C: SIP COMPLIANCE TABLES 410

SIP Functions 410

SIP Methods 410

SIP Headers 411

SDP Headers 413

SIP Responses 414

1xx Response – Information Responses 414

2xx Response – Successful Responses 414

3xx Response – Redirection Responses 415

4xx Response – Client Failure Responses 416

5xx Response – Server Failure Responses 418

6xx Response – Global Responses 418

Reader's Notes 419

APPENDIX D: THE BOOTP/TFTP CONFIGURATION UTILITY 420

When to Use the BootP/TFTP 420

An Overview of BootP 420

Key Features 421

Specifications 421

Installation 421

Loading the cmp File, Booting the Device 422

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V7122 GatewayUser Guide

BootP/TFTP Application User Interface 422

Function Buttons on the Main Screen 423

Log Window 423

Setting the Preferences 425

BootP Preferences 425

TFTP Preferences 426

Configuring the BootP Clients 427

Adding Clients 427

Deleting Clients 428

Editing Client Parameters 428

Testing the Client 429

Setting Client Parameters 429

Using Command Line Switches 430

Managing Client Templates 432

APPENDIX E: RTP/RTCP PAYLOAD TYPES AND PORT ALLOCATION 434

Payload Types Defined in RFC 3551 434

Defined Payload Types 434

Default RTP/RTCP/T.38 Port Allocation 435

Reader’s Notes 437

APPENDIX F: RTP CONTROL PROTOCOL EXTENDED REPORTS (RTCP-XR) 438

APPENDIX G: ACCESSORY PROGRAMS AND TOOLS 441

TrunkPack Downloadable Conversion Utility 441

Converting a CPT ini File to a Binary dat File 442

Creating a Loadable Voice Prompts File 444

Creating a loadable CAS Protocol Table File 445

Encoding / Decoding an ini File 447

Creating a Loadable Prerecorded Tones File 448

PSTN Trace Utility 450

Operation 450

Reader’s Notes 453

APPENDIX H: RELEASE REASON MAPPING 454

Reason Header 454

Fixed Mapping of ISDN Release Reason to SIP Response 455

V7122 Gateway User Guide

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Fixed Mapping of SIP Response to ISDN Release Reason 457

Reader’s Notes 459

APPENDIX I: SNMP TRAPS 460

Alarm Traps 460

Component: Board#<n> 460

Component: AlarmManager#0 464

Component: EthernetLink#0 465

Component: SS7#0 466

Log Traps (Notifications) 468

Other Traps 469

Trap Varbinds 471

APPENDIX J: INSTALLATION AND CONFIGURATION OF APACHE HTTP SERVER

472

Windows 2000/XP Operation Systems 472

Linux Operation Systems 473

APPENDIX K: REGULATORY INFORMATION 476

V7122 476

Safety Notice 477

Industry Canada Notice 478

Digital Device Warnings 478

Network Information and Intent of Use 478

Network Compatibility 478

Telecommunication Safety 479

FCC Statement 479

TP-1610 480

Safety Notice 481

Industry Canada Notice 481

Digital Device Warnings 481

Network Information and Intent of Use 482

Network Compatibility 482

Telecommunication Safety 482

FCC Statement 483

TP-260 484

Safety Notice 485

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Industry Canada Notice 485

FCC Digital Device Warnings 486

Network Information and Intent of Use 486

Network Compatibility 486

Telecommunication Safety 486

FCC Statement 487

Reader’s Notes 487

APPENDIX L: OBTAINING SUPPORT FOR YOUR 3COM PRODUCT 488

Customer Support 488

V7122 Gateway User Guide

15

A

BOUT

T

HIS

G

UIDE

This document describes the release of the 3Com V7122 Digital SIP Gateway, TP-1610 SIP

cPCI board, and TP-260 SIP PCI board.

Information contained in this document is believed to be accurate and reliable at the time of

printing. However, due to ongoing product improvements and revisions, 3Com cannot

guarantee accuracy of printed material after the Date Published nor can it accept

responsibility for errors or omissions. Updates to this document and other documents can be

viewed by registered Technical Support customers at

www.3Com.com under Support / Product

Documentation.

When viewing this guide on CD, Web site or on any other electronic copy, all cross-

references are hyperlinked. Click on the page or section titles (shown in blue) to

reach the individual cross-referenced item directly. To return back to the point from

where you accessed the cross-reference, press the ALT and ◄ keys.

How to Use This Guide

This book covers these topics:



Chapter 1: Overview



1

Chapter 2: Physical Description



1

Chapter 3: Installation



1

Chapter 4: Getting Started



1

Chapter 5: Web Management



1

Chapter 6: The Gateway’s ini File Configuration



Chapter 7: Using BootP / DHCP



1

Chapter 8: Telephony Capabilities



1

Chapter 9: Networking Capabilities



1

Chapter 10: Advanced PSTN Configuration



1

Chapter 11: Advanced System Capabilities



1

Chapter 12: Special Applications



1

Chapter 13: Security



Chapter 14: Diagnostics



Chapter 15: SNMP-Based Management



1

Chapter 16: Configuration Files

16

V7122 GatewayUser Guide



Appendix A: Selected Technical Specifications



Appendix B: Supplied SIP Software Kit



Appendix C: SIP Compliance Tables



Appendix D: The BootP/TFTP Configuration Utility



Appendix E: RTP/RTCP Payload Types and Port Allocation



Appendix F: RTP Control Protocol Extended Reports (RTCP-XR)



Appendix G: Accessory Programs and Tools



Appendix H: Release Reason Mapping



Appendix I: SNMP Traps



Appendix J: Installation and Configuration of Apache HTTP Server

Conventions

Table 1 lists conventions that are used throughout this guide.

Table 1 Notice Icons

Icon Notice Type Description

Information note Information that describes important features or

instructions.

Caution Information that alerts you to potential loss of data or

potential damage to an application, device, system,

or network.

Warning Information that alerts you to potential personal injury

or death.

Model Numbers for the V7122 Gateways

This guide describes the operations for the following 3Com

®

VCX™ Digital SIP Gateways:

 The VCX V7122 Digital Gateway 16 Span (3CRVG71224-07)

 The VCX V7122 Digital Gateway 8 Span (3CRVG71223-07)

 The VCX V7122 Digital Gateway 4 Span (3CRVG71222-07)

 The VCX V7122 Digital Gateway 2 Span (3CRVG71221-07)

 The VCX V7122 Digital Gateway 1 Span (3CRVG71220-07)

V7122 Gateway User Guide

17

Documentation Comments

Your suggestions are important to us because we want to make our documentation more

useful to you.

Please send e-mail comments about this guide or any of the gateway documentation and

Help systems to:

[email protected]

Please include the following information with your comments:

 Document title

 Document part number (usually found on the front page)

 Page number

 Your name and organization (optional)

Example:

V7122 User Guide

Part Number 900-0394-01

Page 25

See the Appendix

Obtaining Support for Your Product in this guide for details on how to

register your product and get support from 3Com.

18

V7122 GatewayUser Guide

Notices

WEEE EU Directive

Pursuant to the WEEE EU Directive, electronic and electrical waste must not be disposed of

with unsorted waste. Please contact your local recycling authority for disposal of this product.

Abbreviations and Terminology

Each abbreviation, unless widely used, is spelled out in full when first used. Only industry-

standard terms are used throughout this guide. Hexadecimal notation is indicated by 0x

preceding the number.

WARNING:

The gateway is supplied as a sealed unit and must only be serviced by qualified

service personnel.

Where ‘network’ appears in this guide, it means Local Area Network (LAN), Wide

Area Network (WAN), and the like. accessed via the gateway’s Ethernet interface.

V7122 Gateway User Guide

19

C

HAPTER

1:

O

VERVIEW

This document provides you with the information on installation, configuration and operation

of the V7122 SIP gateway, TP-1610 SIP cPCI board and TP-260 SIP PCI board. As these

products have similar functionality (with the exception of their physical layout and the number

of trunks), they are collectively referred to throughout this guide (except in hardware-related

sections) as the gateway.

V7122 Overview

The V7122 SIP Voice over IP (VoIP) gateway enables voice, fax, and data traffic to be sent

over the same IP network. The gateway provides excellent voice quality and optimized

packet voice streaming over IP networks.

The gateway uses the award-winning, field-proven Digital Signal Processing (DSP) voice

compression technology used in other TrunkPack

TM

series products.

The gateway incorporates 1, 2, 4, 8 or 16 E1 or T1 spans for connection, directly to Public

Switched Telephone Network (PSTN) / Private Branch Exchange (PBX) telephony trunks,

and includes one or two 10/100 Base-TX Ethernet ports for connection to the network.

The gateway supports up to 480 simultaneous VoIP or Fax over IP (FoIP) calls, supporting

various Integrated Services Digital Network (ISDN) Primary Rate Interface (PRI) protocols

such as EuroISDN, North American NI2, Lucent™ 4/5ESS, and others. In addition, it

supports different variants of Channel Associated Signaling (CAS) protocols for E1 and T1

spans, including MFC R2, E&M immediate start, E&M delay dial/start, loop start and ground

start.

The gateway, best suited for large and medium-sized VoIP applications, is a compact device,

comprising a 19-inch 1U chassis with optional dual AC or single DC power supplies.

The deployment architecture can include several gateways in branch or departmental offices,

connected to local PBXs. Call routing is performed by the gateways themselves or by SIP

Proxy(s).

The gateway enables users to make low cost long distance or international telephone/fax

calls between distributed company offices, using their existing telephones/fax. These calls

are routed over the existing network ensuring that voice traffic uses minimum bandwidth.

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V7122 GatewayUser Guide

The gateway can also route calls over the network using SIP signaling protocol, enabling the

deployment of Voice over Packet solutions in environments where access is enabled to

PSTN subscribers by using a trunking media gateway. This provides the ability to transmit

voice and telephony signals between a packet network and a TDM network. Routing of the

calls from the PSTN to a SIP service node (for example., Call Center) is performed by the

gateway internal routing feature or by a SIP Proxy.

The gateway is offered as a 1-module (up to 240 channels or 8 trunk spans) or 2-

module (for 480 channels or 16 trunk spans only) platform. The latter

configuration supports two TrunkPack modules, each having its own IP address.

Configuration instructions in this document relate to the gateway as a 1-module

platform and must be repeated for the second module as well.

TP-1610 Overview

The TP-1610 cPCI VoIP media gateway board, based on dual TPM-1100 PMC Modules, is a

complete SIP-compliant ‘two media gateways on a board’, delivering cost-effective solution

in a convenient cPCI form-factor.

The TP-1610 is an ideal solution for SIP trunking gateways and integrated media gateways

for IP-PBXs and all-in-one communication servers. The board is designed for enterprise or

carrier applications. The TP-1610 provides up to 480 simultaneous ports for voice, fax or

data for VoIP media gateway applications providing excellent voice quality and optimized

packet voice streaming over IP networks. Employing SIP as a control protocol, the TP-1610

enables vendors and System Integrators (SIs) short time-to-market and reliable cost-

effective deployment of next-generation networks.

One or two packet processors (depending on the board's capacity) handle packet-streaming

functions through two, redundant integral 10/100 Base-TX interfaces. Each processor

implements the industry-standard RTP/RTCP packet-streaming protocol, advanced adaptive

jitter buffer management, and T.38 fax relay over IP.

The TP-1610 supports various ISDN PRI protocols such as EuroISDN, North American NI2,

Lucent™ 4/5ESS, and others. In addition, it supports different variants of CAS protocols for

E1 and T1 spans, including MFC R2, E&M immediate start, E&M delay dial / start, loop start

and ground start.

The TP-1610 enables the deployment of ‘Voice over Packet’ solutions in environments

where access is enabled to PSTN subscribers by using a trunking media gateway. This

provides the ability to transmit voice and telephony signals between a packet network and a

TDM network. Routing of the calls from the PSTN to a SIP service node (for example, Call

Center) is performed by the TP-1610 internal routing feature or by a SIP Proxy.

Enabling accelerated design cycles with higher density and reduced costs, the TP-1610 is an

ideal building block for scalable, reliable VoIP solutions. With the TP-1610’s comprehensive

feature set, customers can quickly design a wide range of solutions for PSTN and VoIP

networks.

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