3Com VCX V7122 Manuale utente

V7122 Gateway

User Guide

System Release 5.0

http://www.3com.com

Part Number 900-0484-01 Rev AA

Published December 2007

V7122 GatewayUser Guide

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

used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation.

3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on

the part of 3Com Corporation to provide notification of such revision or change.

3Com Corporation provides this documentation without warranty, term, or condition of any kind, either implied or expressed, including, but

not limited to, the implied warranties, terms, or conditions of merchantability, satisfactory quality, and fitness for a particular purpose. 3Com

may make improvements or changes in the product(s) and/or the program(s) described in this documentation at any time.

If there is any software on removable media described in this documentation, it is furnished under a license agreement included with the

product as a separate document, in the hardcopy documentation, or on the removable media in a directory file named LICENSE.TXT or

!LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you.

UNITED STATES GOVERNMENT LEGEND

If you are a United States government agency, then this documentation and the software described herein are provided to you subject to

the following:

All technical data and computer software are commercial in nature and developed solely at private expense. Software is delivered as

“Commercial Computer Software” as defined in DFARS 252.227-7014 (June 1995) or as a “commercial item” as defined in FAR 2.101(a)

and as such is provided with only such rights as are provided in 3Com’s standard commercial license for the Software. Technical data is

provided with limited rights only as provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987), whichever is applicable.

You agree not to remove or deface any portion of any legend provided on any licensed program or documentation contained in, or

delivered to you in conjunction with, this guide.

Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other

countries.

3Com, the 3Com logo, NBX, and SuperStack are registered trademarks of 3Com Corporation. NBX NetSet, pcXset, and VCX are

trademarks of 3Com Corporation.

Adobe is a trademark and Adobe Acrobat is a registered trademark of Adobe Systems Incorporated. Microsoft, Windows, Windows 2000,

Windows NT, and Microsoft Word are registered trademarks of Microsoft Corporation.

All other company and product names may be trademarks of the respective companies with which they are associated.

V7122 Gateway User Guide

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

V7122 GatewayUser Guide

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

V7122 Gateway User Guide

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

V7122 GatewayUser Guide

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

V7122 Gateway User Guide

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

V7122 GatewayUser Guide

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

V7122 Gateway User Guide

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

V7122 GatewayUser Guide

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

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