Nortel Internet BWA System 3200 User manual

Media Gateway 3200
H.248 User’s Manual
Version SN09
Document # LTRT-72704 Rev 007

Version SN09 3 October 2006
MG 3200 H.248 User's Manual Contents
Contents
Introductory Matter..................................................................................................15
1Overview of the MG 3200..................................................................................17
1.1 General Features...................................................................................................18
1.2 TP-1610 Software Overview..................................................................................19
1.2.1 Call Control Protocols..............................................................................................19
1.2.2 Management Protocols............................................................................................19
1.3 MG 3200 Applications............................................................................................20
1.3.1 Available Configurations..........................................................................................20
1.4 Benefits..................................................................................................................20
1.5 Functional Block Diagram......................................................................................21
1.6 Typical Application Diagram...................................................................................22
2Hardware Equipment ........................................................................................23
2.1 The MG 3200 Chassis ...........................................................................................23
2.1.1 MG 3200 Diagram ...................................................................................................23
2.1.2 Chassis LED Indicators ...........................................................................................24
2.2 The TP-1610 Board................................................................................................24
2.2.1 Board Hot-Swap Support.........................................................................................25
2.3 TP-1610 Board Panel LED Indicators....................................................................29
3Hardware Installation........................................................................................31
3.1 Unpacking..............................................................................................................31
3.1.1 Package Contents ...................................................................................................32
3.2 Mounting the MG 3200...........................................................................................32
3.2.1 Mounting a MG 3200 in a 19-inch Rack..................................................................33
3.2.2 Installing the MG 3200 on a Desktop ......................................................................35
3.2.3 Cabling the MG 3200...............................................................................................35
3.2.4 Connecting the E1/T1 Trunk Interfaces...................................................................37
3.3 Board Replacement ...............................................................................................42
3.3.1 Preliminaries............................................................................................................42
3.3.2 Removing Boards....................................................................................................42
4Software Package..............................................................................................45
4.1 Software Directory Contents & Structure...............................................................45
5Getting Started ..................................................................................................47
5.1 Assigning the MG 3200 IP Address.......................................................................47
5.1.1 Assigning an IP Address Using HTTP.....................................................................47
5.1.2 Assigning an IP Address Using BootP ....................................................................48

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5.2 Restoring Networking Parameters to their Initial State ..........................................49
6MG 3200 Initialization & Configuration Files...................................................51
6.1 Boot Firmware & Operational Firmware.................................................................51
6.2 MG 3200 Startup....................................................................................................51
6.3 Using BootP/DHCP................................................................................................53
6.3.1 BootP/DHCP Server Parameters ............................................................................53
6.3.2 Host Name Support.................................................................................................56
6.3.3 Selective BootP .......................................................................................................56
6.3.4 Vendor Specific Information ....................................................................................56
6.3.5 Microsoft™ DHCP/BootP Server.............................................................................57
6.4 Configuration Parameters and Files.......................................................................58
6.4.1 Initialization (ini) File................................................................................................59
6.4.2 Auxiliary Files...........................................................................................................67
6.4.3 Automatic Update Facility........................................................................................78
6.5 Backup Copies of ini and Auxiliary Files................................................................80
6.6 Upgrading MG 3200 Software................................................................................80
6.7 Software Upgrade Key...........................................................................................81
6.7.1 About the Software Upgrade Key............................................................................81
6.7.2 Backing up the Current Software Upgrade Key ......................................................81
6.7.3 Loading the Software Upgrade Key.........................................................................82
6.7.4 Verifying that the Key was Successfully Loaded.....................................................84
6.7.5 Troubleshooting an Unsuccessful Loading of a Key...............................................84
6.7.6 Abort Procedure.......................................................................................................84
7Standard Control Protocols .............................................................................87
7.1 General ..................................................................................................................87
7.2 H.248 (Media Gateway Control) Protocol ..............................................................87
7.2.1 H.238 Overview.......................................................................................................87
7.2.2 Operation.................................................................................................................87
7.2.3 SDP Support in H.248 .............................................................................................98
7.2.4 Supported H.248 Packages.................................................................................. 103
7.2.5 H.248 Profiling...................................................................................................... 117
7.2.6 H.248 Termination Naming................................................................................... 118
8MG 3200 Management.....................................................................................123
8.1 Using SNMP.........................................................................................................123
8.1.1 About SNMP......................................................................................................... 123
8.1.2 Carrier-Grade Alarm System................................................................................ 125
8.1.3 Cold Start Trap ..................................................................................................... 126
8.1.4 Performance Measurements for a Third-Party System........................................ 126
8.1.5 SNMP Interface Details ........................................................................................ 131
8.1.6 Dual Module Interface........................................................................................... 138
8.1.7 SNMP NAT Traversal........................................................................................... 139
8.2 Administrative State Control.................................................................................140
8.2.1 Node Maintenance................................................................................................ 140
8.2.2 Graceful Shutdown............................................................................................... 140
8.3 Embedded Web Server........................................................................................141
8.3.1 Embedded Web Server Protection & Security Mechanisms................................ 141
8.3.2 Limiting the Embedded Web Server to Read-Only Mode .................................... 142
8.3.3 Correlating PC / MG 3200 IP Address & Subnet Mask........................................ 143
8.3.4 Accessing the Embedded Web Server................................................................. 144

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8.3.5 Using Internet Explorer to Access the Embedded Web Server............................ 145
8.4 Getting Acquainted with the Web Interface..........................................................146
8.4.1 About the Web Interface Screen .......................................................................... 146
8.4.2 Saving Changes ................................................................................................... 147
8.4.3 Protocol Management........................................................................................... 149
8.4.4 Advanced Configuration Screen........................................................................... 154
8.4.5 Status and Diagnostic Menu................................................................................. 182
8.4.6 Software Update................................................................................................... 189
8.4.7 Save Configuration............................................................................................... 205
8.4.8 Reset Button......................................................................................................... 206
8.5 Restoring and Backing Up the Device Configuration...........................................207
9Diagnostics & Troubleshooting.....................................................................209
9.1 Syslog ..................................................................................................................209
9.1.1 Operating the Syslog Server ................................................................................ 210
9.2 The Embedded Web Server's 'Message Log' (Integral Syslog)...........................211
9.3 CommandShell - The Embedded CLI..................................................................211
9.4 Control Protocol Reports......................................................................................213
9.4.1 H.248 Error Conditions......................................................................................... 213
9.4.2 SNMP Traps ......................................................................................................... 213
9.5 TP-1610 Self-test.................................................................................................213
9.6 Solutions to Possible Problems............................................................................214
9.6.1 Possible Common Problems ................................................................................ 214
9.6.2 Possible Voice Problems...................................................................................... 215
10 Functional Specifications...............................................................................217
10.1 MG 3200 Selected Technical Specifications........................................................217
11 Appendix - BootP/TFTP Server......................................................................223
11.1 Introduction ..........................................................................................................223
11.1.1 Key Features ........................................................................................................ 223
11.1.2 Specifications........................................................................................................ 224
11.1.3 BootP/TFTP Server Installation............................................................................ 224
11.1.4 Logging Screen..................................................................................................... 225
11.1.5 Preferences Screen.............................................................................................. 225
11.1.6 Client Configuration Screen.................................................................................. 226
11.1.7 Template Screen .................................................................................................. 226
11.2 Screen Details......................................................................................................227
11.2.1 Main Screen.......................................................................................................... 227
11.2.2 Preferences Screen.............................................................................................. 228
11.2.3 Client Configuration Screen.................................................................................. 229
11.2.4 Templates Screen................................................................................................. 231
12 Appendix - Individual ini File Parameters.....................................................233
12.1 Individual ini File Parameters...............................................................................233
12.1.1 System Parameters.............................................................................................. 234
12.1.2 PSTN Parameters................................................................................................. 238
12.1.3 Infrastructure Parameters..................................................................................... 246
12.1.4 Media Processing Parameters ............................................................................. 254
12.1.5 SS7 Parameters ................................................................................................... 265
12.1.6 Parameters Common to All Control Protocols...................................................... 266
12.1.7 SNMP Parameters................................................................................................ 271

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12.1.8 H.248-Specific Parameters................................................................................... 272
12.1.9 Web Interface Parameters.................................................................................... 276
12.1.10SCTP Parameters................................................................................................. 278
13 Appendix - Table Parameters.........................................................................281
13.1 ini File Table-Parameters.....................................................................................281
14 Appendix - RTP/RTCP Payload Types...........................................................299
14.1 Payload Types Defined in RFC 3551...................................................................299
14.2 Payload Types .....................................................................................................300
14.3 Payload Types Not Defined in RFC 3551............................................................300
14.4 Default Dynamic Payload Types Which are Not Voice Coders............................301
14.5 Default RTP/RTCP/T.38 Port Allocation ..............................................................302
15 Appendix - DTMF, Fax and Modem Transport Modes..................................303
15.1 DTMF/MF Relay Settings.....................................................................................303
15.2 Fax/Modem Settings............................................................................................303
15.3 Configuring Fax Relay Mode................................................................................303
15.4 Configuring Fax/Modem ByPass Mode................................................................304
15.5 Configuring Fax/Modem Bypass NSE mode........................................................304
15.6 Supporting V.34 Faxes.........................................................................................305
15.6.1 Using Bypass Mechanism for V.34 Fax Transmission......................................... 305
15.6.2 Using Events Only Mechanism for V.34 Fax Transmission ................................. 305
15.6.3 Using Relay Mode for Various Fax Machines (T.30 and V.34)............................ 306
16 Appendix - CAS Protocol Table .....................................................................307
16.1 Constructing a CAS Protocol Table .....................................................................307
16.2 Table Elements....................................................................................................307
16.2.1 INIT variables........................................................................................................ 307
16.2.2 Actions.................................................................................................................. 307
16.2.3 Functions .............................................................................................................. 308
16.2.4 States.................................................................................................................... 308
16.3 Reserved Words ..................................................................................................309
16.4 State’s Line Structure...........................................................................................310
16.5 Action/Event.........................................................................................................310
16.6 Function ...............................................................................................................313
16.7 Parameters...........................................................................................................313
16.8 Next State ............................................................................................................315
16.9 Changing the Script File.......................................................................................315
16.9.1 General................................................................................................................. 315
16.9.2 MFC R2 protocol................................................................................................... 315
17 Appendix - Security.........................................................................................319
17.1 IPSec and IKE......................................................................................................319
17.1.1 IKE........................................................................................................................ 320
17.1.2 IPSec .................................................................................................................... 321
17.1.3 Configuring the IPSec and IKE............................................................................. 321

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MG 3200 H.248 User's Manual Contents
17.2 SSL/TLS...............................................................................................................322
17.2.1 Web Server Configuration .................................................................................... 323
17.2.2 Using the Secure Web Server.............................................................................. 323
17.2.3 Secure Telnet ....................................................................................................... 323
17.2.4 Server Certificate Replacement............................................................................ 324
17.2.5 Client Certificates.................................................................................................. 325
17.3 RADIUS Support..................................................................................................326
17.3.1 Setting Up a RADIUS Server................................................................................ 326
17.3.2 Configuring RADIUS Support............................................................................... 327
17.4 Network Port Usage.............................................................................................328
17.5 Media Security .....................................................................................................329
17.6 Recommended Practices.....................................................................................329
17.7 Legal Notice.........................................................................................................330
18 Appendix - ISDN Signaling Gateway Functionality......................................331
18.1 IUA (ISDN User Adaptation) ................................................................................331
18.1.1 IUA Signaling Messages....................................................................................... 331
18.1.2 Configuring SIGTRAN IUA................................................................................... 331
18.1.3 Support for IUA behind NAT................................................................................. 332
18.2 DUA (DPNSS User Adaptation)...........................................................................333
18.2.1 DPNSSL2 Protocol............................................................................................... 333
18.2.2 DUA Signaling Messages..................................................................................... 334
18.2.3 Configuring SIGTRAN DUA.................................................................................. 334
18.3 DUA Behind NAT Support....................................................................................336
19 Appendix - SS7 Configuration Guide ............................................................337
19.1 SS7 Network Elements........................................................................................337
19.1.1 SS7 M2UA - SG Side ........................................................................................... 337
19.1.2 SS7 M2UA – Media Gateway Controller Side...................................................... 338
19.1.3 SS7 MTP2 Tunneling............................................................................................ 338
19.1.4 Configuration Extensions:..................................................................................... 339
19.1.5 Other dependencies in ini File:............................................................................. 339
19.2 Examples of SS7 ini Files ....................................................................................339
19.2.1 SS7 M2UA - SG Side ini File Example................................................................. 339
19.2.2 SS7 M2UA - Media Gateway Controller Side ini File Example............................ 341
19.2.3 SS7 MTP2 Tunneling ini File Example................................................................. 344
19.3 SS7 Tunneling: Feature Description....................................................................348
19.3.1 MTP2 Tunneling Technology................................................................................ 350
19.3.2 SS7 Characteristics.............................................................................................. 350
20 Appendix - Utilities..........................................................................................353
20.1 TrunkPack Downloadable Conversion Utility.......................................................353
20.1.1 Process Call Progress Tones file(s)..................................................................... 354
20.1.2 Process Voice Prompts file(s) .............................................................................. 355
20.1.3 Process CAS Tables............................................................................................. 358
20.1.4 Process Prerecorded Tones file(s)....................................................................... 360
20.1.5 Process Encoded/Decoded ini file(s).................................................................... 362

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20.2 PSTN Trace Utilities.............................................................................................363
20.3 Enabling PSTN Trace via the Web ......................................................................364
20.4 MEGACO Tester Utility........................................................................................365
21 Appendix - H.248 Compliance........................................................................367
21.1 H.248 Compliance Matrix.....................................................................................367
22 Appendix - SNMP Traps..................................................................................381
22.1 Alarm Traps..........................................................................................................381
22.1.1 Component: Board#<n> ....................................................................................... 381
22.1.2 Component: AlarmManager#0 ............................................................................. 384
22.1.3 Component: EthernetLink#0................................................................................. 385
22.1.4 Component: SS7#0 .............................................................................................. 387
22.2 Log Traps (Notifications)......................................................................................393
22.3 Other Traps..........................................................................................................394
22.4 Trap Varbinds.......................................................................................................394
23 Appendix - Customizing the Web Interface ..................................................397
23.1 Company & Product Bar Components.................................................................397
23.2 Replacing the Main Corporate Logo ....................................................................397
23.2.1 Replacing the Main Corporate Logo with an Image File ...................................... 398
23.2.2 Replacing the Main Corporate Logo with a Text String........................................ 399
23.3 Replacing the Background Image File.................................................................400
23.4 Customizing the Product Name ...........................................................................401
23.4.1 Customizing the Web Browser Title Bar............................................................... 402
23.5 Modifying ini File Parameters via the Web Interface's AdminPage......................402
24 Appendix – Disable MG 3200 Traffic Prior to Software Upgrade ................405
25 Appendix – Resume MG 3200 Traffic after Software Upgrade is Completed409
26 Appendix - Regulatory Information ...............................................................411
27 Index.................................................................................................................415

Version SN09 9 October 2006
MG 3200 H.248 User's Manual Contents
List of Figures
Figure 1-1:1610 Functional Block Diagram............................................................................................21
Figure 1-2: Typical MG 3200 Wireline Application.................................................................................22
Figure 2-1: MG 3200 Front View............................................................................................................23
Figure 2-2: 1610 Board...........................................................................................................................24
Figure 2-3: 1610 RTM - with Telco Connectors .....................................................................................25
Figure 2-4: 1610 Board, Panel View ......................................................................................................26
Figure 2-5: 1610 RTM Panel with 2 Telco Connectors..........................................................................27
Figure 2-6: RTM Panel with 8 RJ-48c Trunk Connectors ......................................................................28
Figure 3-1: Plastic Bag Contents............................................................................................................32
Figure 3-2: MG 3200 Front Panel...........................................................................................................33
Figure 3-3: DC Power Connector - Screw Type.....................................................................................36
Figure 3-4: DC Power Connector - Crimp Type.....................................................................................37
Figure 3-5: 50-Pin Female Telco Board-Mounted Connector................................................................37
Figure 3-6: RJ-48c Trunk Connectors....................................................................................................38
Figure 3-7: RJ-45 LAN Connectors and Pinout......................................................................................39
Figure 3-8: Rear View with Connected Cables (16 Spans and Dual AC)..............................................40
Figure 3-9: Rear View with Connected Cables (8 Spans and DC) ........................................................41
Figure 6-1: Startup Process Diagram.....................................................................................................52
Figure 6-2: Software Upgrade Key Screen ............................................................................................83
Figure 6-3: Example of a Software Upgrade Key File Containing Multiple S/N Lines ...........................83
Figure 7-1: H.248-R2 Call Start Flow Diagram.......................................................................................93
Figure 7-2: H.248-R2 Call Disconnect Flow Diagram............................................................................94
Figure 8-1: Enter Network Password Screen...................................................................................... 145
Figure 8-2: Web Interface Screen - Example...................................................................................... 146
Figure 8-3: Quick Setup Screen.......................................................................................................... 148
Figure 8-4: Protocol Management Screen .......................................................................................... 150
Figure 8-5: Basic Configuration Screen (H.248) ................................................................................. 151
Figure 8-6: General Parameters Screen (H.248)................................................................................ 152
Figure 8-7: Channel Configuration Screen (H.248)............................................................................. 153
Figure 8-8: Advanced Configuration Screen (H.248).......................................................................... 154
Figure 8-9: Network Settings Drop-Down Menu.................................................................................. 155
Figure 8-10: Channel Settings Drop-Down Menu ............................................................................... 155
Figure 8-11: SS7 Settings Drop-Down Menu...................................................................................... 156
Figure 8-12: Advanced Configuration Parameters Screen (SS7 disabled)......................................... 156
Figure 8-13: Advanced Configuration Parameters Screen (SS7 enabled)......................................... 157
Figure 8-14: IP Settings Screen.......................................................................................................... 157
Figure 8-15: Application Settings Screen............................................................................................ 158
Figure 8-16: SNMP Manager’s Table Screen ..................................................................................... 159
Figure 8-17: Web & Telnet Access List Screen................................................................................... 160
Figure 8-18: Security Settings Screen................................................................................................. 161
Figure 8-19: IPSec Table Screen (Existing Table Row)...................................................................... 163
Figure 8-20: IPSec Table Screen (Non -Existing Table Row)............................................................. 164
Figure 8-21: IKE Table Screen (Existing Table Row) ......................................................................... 165
Figure 8-22: IKE Table Screen (Non -Existing Table Row)................................................................. 166
Figure 8-23: RTP Settings Screen (Network Settings)........................................................................ 167
Figure 8-24: Routing Table Screen..................................................................................................... 167
Figure 8-25: Ethernet Port Information Screen ................................................................................... 168
Figure 8-26: Voice Settings Screen.....................................................................................................169
Figure 8-27: Fax/Modem/CID Settings Screen ................................................................................... 170
Figure 8-28: RTP Settings Screen (Channel Settings) ....................................................................... 171
Figure 8-29: IPmedia Settings Screen ................................................................................................ 172
Figure 8-30: Q931 Bit Map Screen...................................................................................................... 175
Figure 8-31: TDM Bus Settings Screen............................................................................................... 176
Figure 8-32: Configuration File Screen ............................................................................................... 178
Figure 8-33: Regional Settings Screen - Sending CPT, CAS and/or Voice Prompt File to the Device179

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Figure 8-34: Change Password Screen - For Users with Administrator Privileges............................. 181
Figure 8-35: Change Password Screen - For Users with Monitoring Privileges................................. 181
Figure 8-36: Status and Diagnostic Menu Screen .............................................................................. 182
Figure 8-37: Trunk and Channel Status Screen.................................................................................. 183
Figure 8-38: Channel Status Screen................................................................................................... 184
Figure 8-39: RTP/RTCP Settings Screen............................................................................................ 185
Figure 8-40: Fax & Modem Settings Screen....................................................................................... 185
Figure 8-41: Transport Settings Screen.............................................................................................. 185
Figure 8-42: Voice Settings Screen.....................................................................................................186
Figure 8-43: IBS Detector Settings Screen......................................................................................... 186
Figure 8-44: Jitter Buffer Settings Screen........................................................................................... 186
Figure 8-45: IPmedia Settings Screen ................................................................................................ 186
Figure 8-46: Message Log Screen...................................................................................................... 188
Figure 8-47: Device Information Screen.............................................................................................. 189
Figure 8-48: Software Upgrade Screen............................................................................................... 192
Figure 8-49: Start Software Upgrade Screen...................................................................................... 192
Figure 8-50: Load CMP File Screen.................................................................................................... 193
Figure 8-51: File Loading Screen........................................................................................................ 194
Figure 8-52: cmp file successfully loaded Notification Screen............................................................ 194
Figure 8-53: File Loading Screen - INI file........................................................................................... 195
Figure 8-54: File Loading Screen – CPT file....................................................................................... 196
Figure 8-55: FINISH Screen................................................................................................................ 197
Figure 8-56: FINISH Screen - Reset................................................................................................... 197
Figure 8-57: File Burning Screen ........................................................................................................ 198
Figure 8-58: End Process Screen....................................................................................................... 198
Figure 8-59: Auxiliary Files Download Screen .................................................................................... 200
Figure 8-60: Software Upgrade Key Screen ....................................................................................... 203
Figure 8-61: Example of a Software Upgrade Key File Containing Multiple S/N Lines...................... 203
Figure 8-62: Save Configuration Dialog Screen.................................................................................. 205
Figure 8-63: Reset Screen .................................................................................................................. 206
Figure 9-1: Syslog Server Main Settings Screen ................................................................................ 209
Figure 9-2: Setting the Syslog Server IP Address............................................................................... 210
Figure 11-1: Main Screen.................................................................................................................... 227
Figure 11-2: Preferences Screen ........................................................................................................228
Figure 11-3: Client Configuration Screen............................................................................................ 229
Figure 11-4: Templates Screen........................................................................................................... 231
Figure 17-1: IPSec Encryption ............................................................................................................ 320
Figure 18-1: ISDN Signaling Messages.............................................................................................. 331
Figure 18-2: DPNSS Signaling Messages .......................................................................................... 334
Figure 18-3 Trunk Settings Configuration Page.................................................................................. 336
Figure 19-1: SS7 M2UA - SG Side...................................................................................................... 337
Figure 19-2: SS7 M2UA - MGC Side .................................................................................................. 338
Figure 19-3: SS7 MTP2 Tunneling...................................................................................................... 338
Figure 19-4: M2UA Architecture.......................................................................................................... 349
Figure 19-5: M2TN Architecture.......................................................................................................... 349
Figure 19-6: Protocol Architecture for MTP2 Tunneling...................................................................... 350
Figure 20-1: Downloadable Conversion Utility Opening Screen......................................................... 353
Figure 20-2: Call Progress Tones Screen........................................................................................... 354
Figure 20-3: Voice Prompts Screen.................................................................................................... 355
Figure 20-4: Select Files Window........................................................................................................ 356
Figure 20-5: File Data Window............................................................................................................ 357
Figure 20-6: Call Associated Signaling (CAS) Screen........................................................................ 359
Figure 20-7: Prerecorded Tones File(s) Screen.................................................................................. 360
Figure 20-8: Prerecorded Tones File(s) Screen with wav Files.......................................................... 361
Figure 20-9: File Data Dialog Box....................................................................................................... 361
Figure 20-10: Encoded ini File(s) Screen............................................................................................ 362
Figure 20-11: Trunk Traces Screen .................................................................................................... 365
Figure 20-12: UDP2File Utility Dialog Box .......................................................................................... 365

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MG 3200 H.248 User's Manual Contents
Figure 23-1: Customized Web Interface Title Bar............................................................................... 397
Figure 23-2: Logo Image Download Screen........................................................................................ 398
Figure 23-3: Default Web Browser Title Bar........................................................................................ 402
Figure 23-4: ini Parameters Screen .................................................................................................... 403

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List of Tables
Table 2-1:Chassis Indicators..................................................................................................................24
Table 2-2: Board Status LED Indicators.................................................................................................29
Table 2-3: Trunk Status LED Indicators.................................................................................................29
Table 2-4: Ethernet LED Indicators........................................................................................................29
Table 2-5: Auxiliary LED Indicators........................................................................................................30
Table 3-1: MG 3200 Front View Component Descriptions.....................................................................33
Table 3-2: Connections on Each 50-Pin Telco Connector.....................................................................38
Table 3-3: MG 3200 Rear Panel Cabling (16 Trunks, Dual AC Power) Component Descriptions........40
Table 3-4: MG 3200 Rear Panel Cabling (8 Trunks, DC Power) Component Descriptions ..................41
Table 5-1: TP-1610 Default Networking Parameters.............................................................................47
Table 6-1: Command Line Switch Descriptions .....................................................................................54
Table 6-2: Vendor Specific Information Field.........................................................................................56
Table 6-3: Vendor Specific Information Fields .......................................................................................57
Table 6-4: ini and Auxiliary Files Descriptions........................................................................................58
Table 6-5: Table of Parameter Values Example - Remote Management Connections.........................61
Table 6-6: Table of Parameter Values Example - Port-to-Port Connections.........................................62
Table 6-7: Default Call Progress Tones.................................................................................................71
Table 7-1: Silence Suppression Operation.............................................................................................96
Table 7-2: Generic Media Package - G............................................................................................... 104
Table 7-3: Base Root Package - ROOT.............................................................................................. 104
Table 7-4: Tone Generator Package - ToneGen ................................................................................ 105
Table 7-5: Tone Detection Package - ToneDet................................................................................... 105
Table 7-6: DTMF Generator Package - DG ........................................................................................ 106
Table 7-7: DTMF Detection Package - DD.......................................................................................... 107
Table 7-8: Call Progress Tones Generator Package - CG.................................................................. 108
Table 7-9: Call Progress Tones Detection Package - CD................................................................... 108
Table 7-10: Basic Continuity Package - CT ........................................................................................ 109
Table 7-11: Network Package - NT..................................................................................................... 109
Table 7-12: RTP Package - RTP.........................................................................................................109
Table 7-13: TDM Circuit Package - TDMC.......................................................................................... 110
Table 7-14: Generic Announcement Package .................................................................................... 110
Table 7-15: Expanded Call Progress Tones Generator Package - XCG............................................ 110
Table 7-16: Basic Service Tones Generation Package - SRVTN....................................................... 111
Table 7-17: Expanded Services Tones Generation Package - XSRVTN........................................... 111
Table 7-18: Basic CAS Signal/Events................................................................................................. 112
Table 7-19: International CAS Signal/Events...................................................................................... 112
Table 7-20: CAS Blocking Signal/Events............................................................................................ 113
Table 7-21: ICASC Signal/Events Table............................................................................................. 113
Table 7-22: MF Generator Package - MFG......................................................................................... 114
Table 7-23: MF Generator Package - MFG......................................................................................... 115
Table 7-24: Inactivity Timer Package - IT............................................................................................ 115
Table 7-25: Basic Call Progress Tones Generator with Directionality Package - BCG...................... 116
Table 7-26: Call Type Discrimination Package - CTYP ..................................................................... 116
Table 7-27: IP Fax Package - IPFAX................................................................................................. 116
Table 7-28: Extended digit collection Package - XDD ....................................................................... 117
Table 7-29: Enhanced Digits Collection Package - EDD.................................................................... 117
Table 7-30: H.248 Endpoint Names.................................................................................................... 119
Table 8-1: Default IP Address and Subnet Mask................................................................................ 144
Table 8-2: Available Access Levels and their Privileges.................................................................... 162
Table 8-3: Trunk Status Color Indicator Key....................................................................................... 174
Table 8-4: Trunk and Channel Status Color Indicator Key.................................................................. 184
Table 9-1: Solutions to Possible Common Problems.......................................................................... 214
Table 9-2: Solutions to Possible Voice Problems ............................................................................... 215
Table 10-1: Selected Technical Specifications ................................................................................... 217
Table 12-1: System Parameters.......................................................................................................... 234

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MG 3200 H.248 User's Manual Contents
Table 12-2: PSTN Parameters............................................................................................................ 238
Table 12-3: Infrastructure Parameters ................................................................................................ 246
Table 12-4: Media Processing Parameters......................................................................................... 255
Table 12-5: SS7 Parameters............................................................................................................... 265
Table 12-6: Common Control Parameters .......................................................................................... 266
Table 12-7: SNMP Parameters ...........................................................................................................271
Table 12-8: H.248 Specific Parameters .............................................................................................. 273
Table 12-9: Web Parameters .............................................................................................................. 276
Table 12-10: SCTP Parameters..........................................................................................................278
Table 13-1: SS7 Signaling Nodes Table Parameters ......................................................................... 281
Table 13-2: SS7 Signaling Node Timers Table Parameters............................................................... 283
Table 13-3: SS7 Signaling LinkSet Timers Table Parameters............................................................ 285
Table 13-4: SS7 Signaling Link Table Parameters............................................................................. 287
Table 13-5: SS7 Signaling LinkSets Table Parameters...................................................................... 291
Table 13-6: SS7 Signaling LinkSet-Links Table Parameters.............................................................. 292
Table 13-7: SS7 RouteSets Table Parameters................................................................................... 293
Table 13-8: SS7 RouteSet-Routes Table Parameters........................................................................ 294
Table 13-9: SigTran Interface Groups Table Parameters................................................................... 295
Table 13-10: SigTran Interface IDs Table Parameters ....................................................................... 296
Table 14-1: Payload Types Defined in RFC 3551............................................................................... 299
Table 14-2: Payload Types Not Defined in RFC 3551........................................................................ 300
Table 14-3: Payload Types Not Defined in RFC 3551........................................................................ 301
Table 14-4: Default RTP/RTCP/T.38 Port Allocation .......................................................................... 302
Table 15-1: V.34 Fax to V.34 Fax - Bypass Mode.............................................................................. 305
Table 15-2: V.34 Fax to V.34 Fax - Events Only Mode....................................................................... 306
Table 15-3: V.34 Fax to V.34 Fax - Relay Mode................................................................................. 306
Table 16-1: ST_DIAL: Table Elements................................................................................................ 308
Table 16-2: CAS Parameters .............................................................................................................. 313
Table 17-1: Default TCP/UDP Network Port Numbers ....................................................................... 328
Table 18-1: SIGTRAN IUA Configuration Parameters........................................................................ 332
Table 18-2: SIGTRAN DUA Configuration Parameters ...................................................................... 334
Table 21-1: H.248 Compliance Matrix................................................................................................. 367
Table 22-1: acBoardFatalError Alarm Trap......................................................................................... 381
Table 22-2: acBoardConfigurationError Alarm Trap ........................................................................... 382
Table 22-3: acBoardTemperatureAlarm Alarm Trap........................................................................... 382
Table 22-4: acBoardEvResettingBoard Alarm Trap............................................................................ 383
Table 22-5: acFeatureKeyError Alarm Trap........................................................................................ 383
Table 22-6: acActiveAlarmTableOverflow Alarm Trap........................................................................ 384
Table 22-7: acBoardEthernetLinkAlarm Alarm Trap ........................................................................... 385
Table 22-8: acgwAdminStateChange Alarm Trap............................................................................... 386
Table 22-9: acOperationalStateChange Alarm Trap........................................................................... 386
Table 22-10: acSS7LinkStateChangeAlarm Trap............................................................................... 387
Table 22-11: acSS7LinkInhibitStateChangeAlarm Trap ..................................................................... 388
Table 22-12: acSS7LinkBlockStateChangeAlarm............................................................................... 389
Table 22-13: acSS7LinkCongestionStateChangeAlarmTrap.............................................................. 389
Table 22-14: acSS7LinkSetStateChangeAlarm Trap.......................................................................... 390
Table 22-15: acSS7RouteSetStateChangeAlarm Trap....................................................................... 391
Table 22-16: acSS7SNSetStateChangeAlarmTrap............................................................................ 392
Table 22-17: acSS7RedundancyAlarm............................................................................................... 392
Table 22-18: acKeepAlive Log Trap.................................................................................................... 393
Table 22-19: acPerformanceMonitoringThresholdCrossing Log Trap................................................ 393
Table 22-20: coldStart Trap................................................................................................................. 394
Table 22-21: authenticationFailure Trap ............................................................................................. 394
Table 22-22: acBoardEvBoardStarted Trap........................................................................................ 394
Table 23-1: Customizable Logo ini File Parameters for the Image File.............................................. 399
Table 23-2: Customizable Logo ini File Parameters for the String Text ............................................. 400
Table 23-3: Customizable Background ini File Parameters................................................................ 401
Table 23-4: Customizable Product Name ini File Parameters............................................................ 402

User’s Manual 14 Document # LTRT-72704
MG 3200
Reader’s Notes

Version SN09 15 October 2006
MG 3200 H.248 User's Manual Introductory Matter
Introductory Matter
Note: When viewing this manual on CD, Web site or on any other electronic copy,
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Notice
This User’s Manual describes the installation and use of the MG 3200.
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, Nortel cannot
guarantee the 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 http://www.nortel.com under Support /
Product Documentation.
© 2005 Nortel Ltd. All rights reserved.
This document is subject to change without notice.
Date Published: May 19, 2005 Date Printed: October 2, 2006

MG 3200 H.248 User's Manual 16 Document #: 30403
TP-1610
Trademarks
All other products or trademarks are property of their respective owners.
Customer Support
Customer technical support and service are provided by Nortel’s Distributors, Partners, and
Resellers from whom the product was purchased. For Customer support for products
purchased directly from Nortel, contact mailto:[email protected].
Abbreviations and Terminology
Each abbreviation, unless widely used, is spelled out in full when first used. Only industry-
standard terms are used throughout this manual. Hexadecimal notation is indicated by 0x
preceding the number.
Related Documentation
The Nortel documentation package contains the following publications:
MG 3200 User's Manual (this manual) - contains the boards’ physical description,
installation instructions, standard control protocols and management protocols
description and general features of the board which are not control protocol specific
(for example various networking issues)
LTRT-72904 MG 3200 Configuration Guide
LTRT-73805 MG 3200 H.248-SIP Fast Track Installation Guide

Version SN09 17 October 2006
H.248 User’s Manual 1. Overview of the MG 3200
1 Overview of the MG 3200
The MG 3200 is the cost-effective, entry-level, market-ready, standards-compliant media
server systems. Intelligently packaged in a 1U chassis, especially designed for small-scale
deployments and smaller locations in the packet network, the MG 3200 is the correct
solution size for small-scale needs. Incorporating best-of-breed Voice over Packet
technology and based on field proven media technology, the MG 3200 enables Service
Providers (SPs) rapid time-to-market and reliable cost-effective deployments of enhanced
voice services in VoIP telephony networks. This compact device, is designed to be
installed either as a desktop unit or installed in a 19-inch rack.
The MG 3200 contains the TP-1610 cPCI VoIP communication board, an ideal building
block for deploying high-density, high availability Voice over IP (VoIP) enterprise systems.
The MG 3200 supports a broad selection of voice processing related algorithms, including
G.711, G.723.1, and G.729A Vocoders, G.168-2002 compliant echo cancelation, T.38 real-
time Fax over IP, a wide selection of In-band and Out-of-band tone detection and
generation, as well as signaling protocol support, including ISDN PRI, SigTran (M2UA,
IUA) and CAS.
The MG 3200 is suitable for VoIP gateways, IP-enabled call centers, large Telcos and next
generation DLCs. Offering integrated voice gateway functionality capable of delivering up
to 480 simultaneous calls, the MG 3200 supports all necessary functions for voice and fax
streaming over IP networks.
The MG 3200 incorporates up to 8 or 16 E1, T1 or J1 spans for connection, either directly
to PSTN telephony trunks, or to an enterprise PBX, and two 10/100 Base-TX Ethernet
ports for redundant connection to the LAN.
Two packet processors 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. An E1/T1 trunk interface module is provided for 16-T1, or 16-E1, or 16-J1 trunks,
allowing for full gateway streaming functions in a single cPCI slot.
The TP-1610 board complies with industry-standard network control protocols including
H.248. These protocols allow for the implementation of a distributed Media Gateway and
media server architecture that separates call processing functions from media processing
functions, resulting in better redundancy, scalability and higher system availability.
Enabling accelerated design cycles with higher density and reduced costs, the MG 3200 is
an ideal building block for scalable, reliable VoIP solutions. With the MG 3200’s
comprehensive feature set, customers can quickly design a wide range of solutions for
PSTN and VoIP networks.

User’s Manual 18 Document # LTRT-72704
MG 3200
1.1 General Features
The MG 3200 has the following features:
Vocoder configuration options:
•PCM/ADPCM, G.711, G.723, G.723.1, and G.729A
Note 1: G.729A and G.723 should not be used simultaneously on the same board.
Note 2: G.728 coder can be supported. For additional information, contact your
Nortel representative.
Up to 16 E1/T1 digital spans
Independent vocoder selection per channel
Extensive media processing functions
RTP stream multiple destination connection (i.e. to TDM, other RTP channels and
PCI channels (for recording))
Packet telephony standard compliant
PSTN protocol termination support
Open architecture
Flexible deployment and multiple density options
NEBS Level 3 compliant
Superior, high quality VoIP calls and FoIP transmissions
Interchangeable IP/RTP or PSTN Endpoints
VoIP packet streaming (RTP/ RTCP) per RFC 1889/1890
Real-time Fax over IP/T.38 with superior performance (round trip delay of up to 9 sec)
Integral Announcement support towards PSTN/TDM and IP
IP to IP Mediation capabilities
IP to IP Transcoding (G.711 to and from LBR)
Tone detection and generation (MF, DTMF, RFC 2833)
Packet interface: Dual 10/100 Base-TX link ports (for redundancy) or cPSB back
plane (PICMG 2.16) interface
G.168-2002 compliant Echo Cancelation with a 32, 64* or 128* msec tail
(* May reduce channel density)
Silence Suppression supporting VAD (Voice Activity Detection) and CNG (Comfort
Noise Generation)
Automatic Fax Bypass modes
DTMF detection and generation according to TIA 464B

Version SN09 19 October 2006
H.248 User’s Manual 1. Overview of the MG 3200
DTMF Relay according RFC 2833
PSTN Signaling: CAS, ISDN PRI
Transport of SS7 signaling, with the use of SigTran; MTP-3 and higher layer
messages are relayed using M2UA via SCTP over IP
MFC-R2 and Call Progress Tone detection and generation
PICMG 2.1 for Hot-swap support
cPSB (PICMG 2.16) support
Rear Transition Module (RTM)
PICMG 2.5 for H.110 support
Management Interfaces: SNMP V2, Embedded Web Server
Compact, rugged 19-inch rack mount unit, 1U high (1.75" or 44.5 mm), with two
compactPCI™(cPCI) slots
Optional dual redundant AC or single non-redundant DC power supplies
1.2 TP-1610 Software Overview
The MG 3200 software supports the following Protocols:
1.2.1 Call Control Protocols
H.248 Protocol - H.248 is a standards-based network control protocol (based on the
IETF's RFC 3015 and ITU-T: H.248). Since this is a standards-based control protocol,
no special software library is provided. Users can choose from many such stacks that
are generally available in the market to construct their own Call Agent. For more
information, refer to ''H.248 (Media Gateway Control) Protocol'' on page 87.
1.2.2 Management Protocols
The MG 3200 software supports the following Management Protocols:
SNMP - Refer to ''Using SNMP'' on page 123
Embedded Web Server - Refer to ''Embedded Web Server'' on page 141
Telnet - Refer to ''Command Shell'' on page 211

User’s Manual 20 Document # LTRT-72704
MG 3200
1.3 MG 3200 Applications
The MG 3200 can be used in a variety of applications, which exploit its unique advantages
regarding compressing PCM voice channels to IP packets according to ITU and IETF
standards.
Examples include:
Next Generation Switches
IP Services Platforms
VoIP Access Gateways
Carrier Grade Trunking Gateways
IP-enabled Call Centers
Cable Telephony Gateways
1.3.1 Available Configurations
The MG 3200 is offered in a variety of channel densities and rear I/O options. Most of the
descriptions and illustrations in this manual refer to the full capacity board.
1.4 Benefits
IP-enabled, cost-effective technology
Low to high channel density, high performance board
Concurrent toll quality voice and fax support
Wide range of PSTN signaling protocols
Fast time-to-market
Flexible and easy migration to VoIP networks
Extensive VoIP experience accumulated by Nortel
All-in-one integrated board - Reduced inventory
Scalable distributed architectures
Shorter development cycle