LTRT-89712 Mediant 3000 SIP User's Manual Ver. 6.4

Mediant 3000

VoIP Media Gateway

SIP Protocol

Users Manual

Version 6.4 November 2011

Document # LTRT-89712

Version 6.4 3 November 2011

SIP User's Manual Contents

Table of Contents 1 Overview ............................................................................................................ 17

1.1 Mediant 3000 High Availability System .................................................................. 18 1.1.1 Initialization Process ................................................................................................ 20 1.1.2 Configuration Stages ............................................................................................... 20 1.1.3 Blade Failure Detection ........................................................................................... 21

1.2 Functional Block Diagrams .................................................................................... 22 1.3 SIP Overview ......................................................................................................... 24

Part I: Getting Started..............................................................................................25

2 Assigning the VoIP LAN IP Address ................................................................ 27 2.1 Using CLI ............................................................................................................... 27 2.2 Using the Web Interface ......................................................................................... 28 2.3 Using BootP/TFTP Server ...................................................................................... 29 2.4 Assigning an IP Address for Mediant 3000 HA ...................................................... 31

2.4.1 Using the Web Interface .......................................................................................... 32 2.4.2 Using the EMS ......................................................................................................... 34

Part II: Management Tools ......................................................................................37

3 Web-Based Management .................................................................................. 39 3.1 Getting Acquainted with the Web Interface ............................................................ 39

3.1.1 Computer Requirements .......................................................................................... 39 3.1.2 Accessing the Web Interface ................................................................................... 40 3.1.3 Areas of the GUI ...................................................................................................... 41 3.1.4 Toolbar Description .................................................................................................. 42 3.1.5 Navigation Tree ....................................................................................................... 43

3.1.5.1 Displaying Navigation Tree in Basic and Full View ..................................44 3.1.5.2 Showing / Hiding the Navigation Pane .....................................................45

3.1.6 Working with Configuration Pages .......................................................................... 46 3.1.6.1 Accessing Pages ......................................................................................46 3.1.6.2 Viewing Parameters .................................................................................46 3.1.6.3 Modifying and Saving Parameters ...........................................................48 3.1.6.4 Entering Phone Numbers .........................................................................49 3.1.6.5 Working with Tables .................................................................................50

3.1.7 Searching for Configuration Parameters ................................................................. 54 3.1.8 Working with Scenarios ........................................................................................... 55

3.1.8.1 Creating a Scenario ..................................................................................55 3.1.8.2 Accessing a Scenario ...............................................................................57 3.1.8.3 Editing a Scenario ....................................................................................58 3.1.8.4 Saving a Scenario to a PC .......................................................................59 3.1.8.5 Loading a Scenario to the Device ............................................................60 3.1.8.6 Deleting a Scenario ..................................................................................60 3.1.8.7 Quitting Scenario Mode ............................................................................61

3.1.9 Creating a Login Welcome Message ....................................................................... 62 3.1.10 Getting Help ............................................................................................................. 63 3.1.11 Logging Off the Web Interface ................................................................................. 64

3.2 Using the Home Page ............................................................................................ 65 3.2.1 High Availability Status ............................................................................................ 68

3.3 Configuring Web User Accounts ............................................................................ 70

SIP User's Manual 4 Document #: LTRT-89712

Mediant 3000

3.4 Configuring Web Security Settings ........................................................................ 73 3.5 Web Login Authentication using Smart Cards ....................................................... 73 3.6 Configuring Web and Telnet Access List ............................................................... 74 3.7 Configuring RADIUS Settings ................................................................................ 75

4 CLI-Based Management .................................................................................... 77 4.1 Configuring Telnet and SSH Settings .................................................................... 78

5 SNMP-Based Management ............................................................................... 79 5.1 Configuring SNMP Community Strings .................................................................. 79 5.2 Configuring SNMP Trap Destinations .................................................................... 80 5.3 Configuring SNMP Trusted Managers ................................................................... 81 5.4 Configuring SNMP V3 Users .................................................................................. 82

6 EMS-Based Management .................................................................................. 85 7 INI File-Based Management .............................................................................. 87

7.1 INI File Format ....................................................................................................... 87 7.1.1 Configuring Individual ini File Parameters ............................................................... 87 7.1.2 Configuring ini File Table Parameters ..................................................................... 88 7.1.3 General ini File Formatting Rules ............................................................................ 89

7.2 Modifying an ini File ............................................................................................... 90 7.3 Secured Encoded ini File ....................................................................................... 90

Part III: General System Settings ...........................................................................91

8 Configuring Certificates ................................................................................... 93 8.1 Replacing Device Certificate .................................................................................. 93 8.2 Loading a Private Key ............................................................................................ 96 8.3 Mutual TLS Authentication ..................................................................................... 97 8.4 Self-Signed Certificates .......................................................................................... 98

9 Date and Time .................................................................................................... 99 9.1 Manual Date and Time ........................................................................................... 99

9.1.1 Configuring Date and Time Manually using Web Interface ..................................... 99 9.2 Automatic Date and Time through SNTP Server ................................................. 100

9.2.1 Configuring SNTP using Web Interface .................................................................101

Part IV: VoIP Configuration ...................................................................................103

10 Network ............................................................................................................ 105 10.1 Ethernet Interface Configuration .......................................................................... 105 10.2 Ethernet Interface Redundancy ........................................................................... 105 10.3 Configuring IP Interface Settings ......................................................................... 106

10.3.1 Network Configuration ...........................................................................................111 10.3.1.1 Multiple Network Interfaces and VLANs ................................................ 111 10.3.1.2 Setting Up VoIP Networking .................................................................. 119 10.3.1.3 Getting Started with Mediant 3000 in High Availability Mode ............... 123

10.4 Configuring the IP Routing Table ......................................................................... 130 10.4.1 Routing Table Columns .........................................................................................132



10.4.1.1 Destination Column ............................................................................... 132 10.4.1.2 Prefix Length Column ............................................................................ 132 10.4.1.3 Gateway Column ................................................................................... 132 10.4.1.4 Interface Column ................................................................................... 132 10.4.1.5 Metric Column ....................................................................................... 133 10.4.1.6 State Column ......................................................................................... 133

10.4.2 Routing Table Configuration Summary and Guidelines ........................................133 10.4.3 Troubleshooting the Routing Table .......................................................................134

10.5 Configuring QoS Settings ..................................................................................... 134 10.6 DNS ...................................................................................................................... 135

10.6.1 Configuring the Internal DNS Table .......................................................................135 10.6.2 Configuring the Internal SRV Table .......................................................................136

10.7 NAT (Network Address Translation) Support ....................................................... 137 10.7.1 STUN .....................................................................................................................138 10.7.2 First Incoming Packet Mechanism .........................................................................139 10.7.3 No-Op Packets ......................................................................................................139

10.8 Configuring NFS Settings ..................................................................................... 140 10.9 Robust Receipt of Media Streams ....................................................................... 142 10.10 Multiple Routers Support ...................................................................................... 142 10.11 IP Multicasting ...................................................................................................... 142

11 Security ............................................................................................................ 143 11.1 Configuring Firewall Settings ............................................................................... 143 11.2 Configuring General Security Settings ................................................................. 147 11.3 Configuring IP Security Proposal Table ............................................................... 147 11.4 Configuring IP Security Associations Table ......................................................... 149

12 Media ................................................................................................................ 153 12.1 Configuring Voice Settings ................................................................................... 153

12.1.1 Voice Gain (Volume) Control .................................................................................153 12.1.2 Silence Suppression (Compression) .....................................................................154 12.1.3 Echo Cancellation ..................................................................................................154

12.2 Fax and Modem Capabilities ................................................................................ 156 12.2.1 Fax/Modem Operating Modes ...............................................................................157 12.2.2 Fax/Modem Transport Modes ...............................................................................157

12.2.2.1 T.38 Fax Relay Mode ............................................................................ 158 12.2.2.2 G.711 Fax / Modem Transport Mode .................................................... 159 12.2.2.3 Fax Fallback .......................................................................................... 159 12.2.2.4 Fax/Modem Bypass Mode .................................................................... 159 12.2.2.5 Fax / Modem NSE Mode ....................................................................... 160 12.2.2.6 Fax / Modem Transparent with Events Mode ....................................... 161 12.2.2.7 Fax / Modem Transparent Mode ........................................................... 161 12.2.2.8 RFC 2833 ANS Report upon Fax/Modem Detection ............................ 162

12.2.3 V.34 Fax Support ...................................................................................................162 12.2.3.1 Bypass Mechanism for V.34 Fax Transmission .................................... 163 12.2.3.2 Relay Mode for T.30 and V.34 Faxes ................................................... 163 12.2.3.3 V.34 Fax Relay for SG3 Fax Machines ................................................. 164

12.2.4 V.150.1 Modem Relay ...........................................................................................166 12.2.5 V.152 Support ........................................................................................................167 12.2.6 Fax Transmission behind NAT ..............................................................................167

12.3 Configuring RTP/RTCP Settings .......................................................................... 168 12.3.1 Dynamic Jitter Buffer Operation ............................................................................169 12.3.2 Comfort Noise Generation .....................................................................................170 12.3.3 Dual-Tone Multi-Frequency Signaling ...................................................................170


Mediant 3000

12.3.3.1 Configuring DTMF Transport Types ...................................................... 170 12.3.3.2 Configuring RFC 2833 Payload ............................................................ 172

12.3.4 Configuring RTP Base UDP Port ...........................................................................173 12.3.5 RTP Control Protocol Extended Reports (RTCP XR) ...........................................173

12.3.5.1 Configuring RTCP XR using Web Interface .......................................... 174 12.4 Configuring IP Media Settings .............................................................................. 175

12.4.1 Answer Machine Detector (AMD) ..........................................................................176 12.4.2 Automatic Gain Control (AGC) ..............................................................................180

12.5 Configuring General Media Settings .................................................................... 181 12.6 Configuring DSP Templates ................................................................................. 181 12.7 Configuring Media Realms ................................................................................... 182 12.8 Configuring Media Security .................................................................................. 185 12.9 Configuring Quality of Experience Parameters per Media Realm ........................ 186 12.10 Configuring Server for Media Quality of Experience ............................................ 189

13 Services ........................................................................................................... 191 13.1 Routing Based on LDAP Active Directory Queries .............................................. 191

13.1.1 LDAP Overview .....................................................................................................191 13.1.2 Configuring LDAP Settings ....................................................................................192 13.1.3 AD-Based Tel-to-IP Routing in Microsoft OCS 2007 Environment .......................192

13.2 Least Cost Routing ............................................................................................... 195 13.2.1 Overview ................................................................................................................195 13.2.2 Configuring LCR ....................................................................................................198

13.2.2.1 Enabling the LCR Feature ..................................................................... 198 13.2.2.2 Configuring Cost Groups ....................................................................... 199 13.2.2.3 Configuring Time Bands for Cost Groups ............................................. 200 13.2.2.4 Assigning Cost Groups to Routing Rules .............................................. 202

14 Control Network .............................................................................................. 203 14.1 Configuring SRD Table ........................................................................................ 203 14.2 Configuring SIP Interface Table ........................................................................... 206 14.3 Configuring IP Groups .......................................................................................... 208 14.4 Configuring Proxy Sets Table .............................................................................. 215 14.5 Configuring NAT Translation per IP Interface ...................................................... 220 14.6 Multiple SIP Signaling and Media Interfaces using SRDs .................................... 221

15 Enabling Applications ..................................................................................... 229 16 Coders and Profiles ........................................................................................ 231

16.1 Configuring Coders .............................................................................................. 231 16.2 Configuring Coder Groups ................................................................................... 232 16.3 Configuring Tel Profile .......................................................................................... 233 16.4 Configuring IP Profiles ......................................................................................... 236

17 SIP Definitions ................................................................................................. 239 17.1 Configuring SIP General Parameters ................................................................... 239 17.2 Configuring Advanced Parameters ...................................................................... 240 17.3 Configuring Account Table ................................................................................... 241 17.4 Configuring Proxy and Registration Parameters .................................................. 244

18 GW and IP to IP ............................................................................................... 245 18.1 Digital PSTN ......................................................................................................... 245



18.1.1 TDM and Timing ....................................................................................................245 18.1.1.1 Configuring TDM Bus Settings .............................................................. 245 18.1.1.2 Configuring Digital PCM Settings .......................................................... 246 18.1.1.3 Configuring System Timing ................................................................... 246

18.1.2 Configuring Transmission Settings ........................................................................250 18.1.3 Configuring CAS State Machines ..........................................................................251 18.1.4 Configuring Trunk Settings ....................................................................................253 18.1.5 Configuring Digital Gateway Parameters ..............................................................256 18.1.6 Tunneling Applications ...........................................................................................257

18.1.6.1 TDM Tunneling ...................................................................................... 257 18.1.6.2 QSIG Tunneling ..................................................................................... 260

18.1.7 Advanced PSTN Configuration ..............................................................................261 18.1.7.1 Release Reason Mapping ..................................................................... 261 18.1.7.2 ISDN Overlap Dialing ............................................................................ 265 18.1.7.3 ISDN Non-Facility Associated Signaling (NFAS) .................................. 267 18.1.7.4 SDH / SONET Configuration ................................................................. 270 18.1.7.5 Redirect Number and Calling Name (Display) ...................................... 276

18.2 Trunk Group ......................................................................................................... 277 18.2.1 Configuring Trunk Group Table .............................................................................277 18.2.2 Configuring Trunk Group Settings .........................................................................279

18.3 Manipulation ......................................................................................................... 282 18.3.1 Configuring General Settings ................................................................................282 18.3.2 Configuring Number Manipulation Tables .............................................................282 18.3.3 Configuring Redirect Number IP to Tel ..................................................................287 18.3.4 Configuring Redirect Number Tel to IP ..................................................................289 18.3.5 Mapping NPI/TON to SIP Phone-Context .............................................................291 18.3.6 Numbering Plans and Type of Number .................................................................293 18.3.7 Configuring Release Cause Mapping ....................................................................294 18.3.8 SIP Calling Name Manipulations ...........................................................................295 18.3.9 SIP Message Manipulation ....................................................................................295 18.3.10 Manipulating Number Prefix ..................................................................................296

18.4 Routing ................................................................................................................. 297 18.4.1 Configuring General Routing Parameters .............................................................297 18.4.2 Configuring Outbound IP Routing Table ................................................................298 18.4.3 Configuring Inbound IP Routing Table ..................................................................306 18.4.4 Configuring Alternative Routing Reasons ..............................................................308 18.4.5 Configuring Call Forward upon Busy Trunk ...........................................................310

18.5 DTMF and Supplementary ................................................................................... 311 18.5.1 Configuring DTMF and Dialing ..............................................................................311 18.5.2 Configuring Supplementary Services ....................................................................311

18.5.2.1 Call Hold and Retrieve .......................................................................... 313 18.5.2.2 Call Transfer .......................................................................................... 313 18.5.2.3 Call Forward .......................................................................................... 314 18.5.2.4 Message Waiting Indication .................................................................. 315 18.5.2.5 Emergency E911 Phone Number Services........................................... 316 18.5.2.6 Multilevel Precedence and Preemption ................................................. 316 18.5.2.7 Denial of Collect Calls ........................................................................... 318

18.5.3 Configuring Voice Mail Parameters .......................................................................319 18.5.4 Advice of Charge Services for Euro ISDN .............................................................320

18.6 Dialing Plan Features ........................................................................................... 321 18.6.1 Digit Mapping .........................................................................................................321 18.6.2 External Dial Plan File ...........................................................................................322

18.6.2.1 Modifying ISDN-to-IP Calling Party Number ......................................... 324 18.6.3 Dial Plan Prefix Tags for IP-to-Tel Routing............................................................325

18.7 Configuring Alternative Routing (Based on Connectivity and QoS) ..................... 326 18.7.1 Alternative Routing Mechanism .............................................................................327


Mediant 3000

18.7.2 Determining the Availability of Destination IP Addresses ......................................327 18.7.3 PSTN Fallback .......................................................................................................327

18.8 SIP Call Routing Examples .................................................................................. 328 18.8.1 SIP Call Flow Example ..........................................................................................328 18.8.2 SIP Message Authentication Example ..................................................................330 18.8.3 Trunk-to-Trunk Routing Example ..........................................................................333 18.8.4 SIP Trunking between Enterprise and ITSPs ........................................................334

18.9 IP-to-IP Routing Application ................................................................................. 338 18.9.1 Theory of Operation ...............................................................................................339

18.9.1.1 Proxy Sets ............................................................................................. 340 18.9.1.2 IP Groups .............................................................................................. 340 18.9.1.3 Inbound and Outbound IP Routing Rules ............................................. 342 18.9.1.4 Accounts ................................................................................................ 342

18.9.2 IP-to-IP Routing Configuration Example ................................................................342 18.9.2.1 Step 1: Enable the IP-to-IP Capabilities ................................................ 345 18.9.2.2 Step 2: Configure the Number of Media Channels ............................... 345 18.9.2.3 Step 3: Define a Trunk Group for the Local PSTN ................................ 346 18.9.2.4 Step 4: Configure the Proxy Sets .......................................................... 346 18.9.2.5 Step 5: Configure the IP Groups ........................................................... 348 18.9.2.6 Step 6: Configure the Account Table .................................................... 351 18.9.2.7 Step 7: Configure IP Profiles for Voice Coders ..................................... 352 18.9.2.8 Step 8: Configure Inbound IP Routing .................................................. 354 18.9.2.9 Step 9: Configure Outbound IP Routing ................................................ 355 18.9.2.10 Step 10: Configure Destination Phone Number Manipulation .............. 357

19 Session Border Controller .............................................................................. 359 19.1 SBC Overview ...................................................................................................... 359

19.1.1 SIP Network Definitions .........................................................................................360 19.1.2 SIP Dialog Initiation Process .................................................................................360

19.1.2.1 Determining Source and Destination URL ............................................ 362 19.1.2.2 Source IP Group Classification ............................................................. 362 19.1.2.3 SBC IP-to-IP Routing ............................................................................ 363 19.1.2.4 IP-to-IP Inbound and Outbound Manipulation ....................................... 364 19.1.2.5 SIP Header Manipulation ...................................................................... 366

19.1.3 User Registration and Internal Database ..............................................................367 19.1.3.1 Initial Registration Request Processing ................................................ 367 19.1.3.2 Internal Database .................................................................................. 368 19.1.3.3 Routing using Internal Database ........................................................... 369 19.1.3.4 Registration Refreshes .......................................................................... 369 19.1.3.5 Registration Restriction Control ............................................................ 370

19.1.4 SBC Media Handling .............................................................................................370 19.1.4.1 Media Anchoring without Transcoding (Transparent) ........................... 372 19.1.4.2 Media Anchoring with Transcoding ....................................................... 372 19.1.4.3 No Media Anchoring .............................................................................. 374 19.1.4.4 Interworking DTMF Methods ................................................................. 375 19.1.4.5 Transcoding Modes ............................................................................... 376 19.1.4.6 Restricting Coders ................................................................................. 376 19.1.4.7 SRTP-RTP Transcoding ........................................................................ 378 19.1.4.8 Multiple RTP Media Streams per Call Session ..................................... 379

19.1.5 Fax Negotiation and Transcoding ..........................................................................379 19.1.6 SIP Dialog Admission Control ...............................................................................380 19.1.7 Limiting SBC Call Duration ....................................................................................380 19.1.8 SIP Authentication Server for SBC Users .............................................................380 19.1.9 Handling SIP 3xx Redirect Responses ..................................................................381 19.1.10 Interworking SIP Diversion and History-Info Headers ...........................................382 19.1.11 Call Survivability ....................................................................................................383

19.1.11.1 Auto-Provisioning of Subscriber-Specific Information for BroadWorks Server for Survivability .......................................................................................... 383



19.1.11.2 BroadSoft's Shared Phone Line Call Appearance for SBC Survivability 384 19.1.11.3 Call Survivability for Call Centers .......................................................... 386

19.1.12 Call Forking ............................................................................................................389 19.1.12.1 Initiating SIP Call Forking ...................................................................... 389 19.1.12.2 SIP Forking Initiated by SIP Proxy Server ............................................ 389

19.1.13 Alternative Routing on Detection of Failed SIP Response ....................................389 19.1.14 Active SBC Call Continuity during HA Blade Switchover ......................................390

19.2 SBC Configuration ............................................................................................... 390 19.2.1 Configuring General Settings ................................................................................390 19.2.2 Configuring Admission Control ..............................................................................391 19.2.3 Configuring Allowed Coder Groups .......................................................................393 19.2.4 Configuring SIP Message Policy Rules .................................................................394 19.2.5 Routing SBC ..........................................................................................................397

19.2.5.1 Configuring Classification Rules ........................................................... 397 19.2.5.2 Configuring Condition Rules ................................................................. 401 19.2.5.3 Configuring SBC IP-to-IP Routing ......................................................... 402 19.2.5.4 Configuring Alternative Routing Reasons ............................................. 407

19.2.6 Manipulations SBC ................................................................................................408 19.2.6.1 Configuring Message Manipulations ..................................................... 408 19.2.6.2 Configuring IP-to-IP Inbound Manipulations ......................................... 411 19.2.6.3 Configuring IP-to-IP Outbound Manipulations ...................................... 414

19.3 SBC Configuration Examples ............................................................................... 417 19.3.1 Basic SBC Scenario ..............................................................................................417

19.3.1.1 Step 1: Enable the SBC Application ...................................................... 418 19.3.1.2 Step 2: Define Number of Media Channels........................................... 418 19.3.1.3 Step 3: Define IP Addresses for Media/Control .................................... 419 19.3.1.4 Step 4: Configure Multiple SIP and RTP Interfaces .............................. 419 19.3.1.5 Step 5: Define Proxy Sets per Network ................................................. 422 19.3.1.6 Step 6: Define IP Groups per Network .................................................. 423 19.3.1.7 Step 7: Define IP-to-IP Routing Rules ................................................... 425

19.3.2 SBC-to-PSTN Routing ...........................................................................................426 19.3.2.1 Step 1: Define SIP Interface for PSTN .................................................. 427 19.3.2.2 Step 2: Define Device as Proxy ............................................................ 427 19.3.2.3 Step 3: Define IP Group for PSTN ........................................................ 428 19.3.2.4 Step 4: Define IP-to-IP Routing Rules for PSTN ................................... 429 19.3.2.5 Step 5: Define Trunk Group for PSTN .................................................. 431 19.3.2.6 Step 6: Define IP-to-Tel Routing Rules ................................................. 432

19.3.3 SBC Vocoder Transcoding ....................................................................................432 19.3.3.1 Step 1: Define Coder Groups ................................................................ 433 19.3.3.2 Step 2: Define Allowed Coders ............................................................. 433 19.3.3.3 Step 3: Assign Coder Rules to IP Profiles ............................................. 433 19.3.3.4 Step 4: Assign IP Profiles to IP Groups ................................................ 435

19.3.4 SBC RTP-SRTP Transcoding ...............................................................................436 19.3.5 SBC SIP URI Manipulation ....................................................................................438

19.3.5.1 Step 1: Define SIP URI Host Manipulation............................................ 438 19.3.5.2 Step 2: Define SIP URI User Manipulation ........................................... 439

19.3.6 SIP Header Manipulation .......................................................................................440 19.3.6.1 Step 1: Add SIP Message Manipulation Rule ....................................... 440 19.3.6.2 Step 2: Assign Message Manipulation Rule to IP Group ...................... 441

20 Stand-Alone Survivability (SAS) Application ................................................ 443 20.1 Overview .............................................................................................................. 443

20.1.1 SAS Operating Modes ...........................................................................................443 20.1.1.1 SAS Outbound Mode ............................................................................ 444 20.1.1.2 SAS Redundant Mode........................................................................... 445

20.1.2 SAS Routing ..........................................................................................................447


Mediant 3000

20.1.2.1 SAS Routing in Normal State ................................................................ 447 20.1.2.2 SAS Routing in Emergency State ......................................................... 449

20.2 SAS Configuration ................................................................................................ 449 20.2.1 General SAS Configuration ...................................................................................450

20.2.1.1 Enabling the SAS Application ............................................................... 450 20.2.1.2 Configuring Common SAS Parameters ................................................ 450

20.2.2 Configuring SAS Outbound Mode .........................................................................453 20.2.3 Configuring SAS Redundant Mode .......................................................................453 20.2.4 Configuring Gateway Application with SAS ...........................................................454

20.2.4.1 Gateway with SAS Outbound Mode ...................................................... 454 20.2.4.2 Gateway with SAS Redundant Mode .................................................... 456

20.2.5 Advanced SAS Configuration ................................................................................458 20.2.5.1 Manipulating URI user part of Incoming REGISTER ............................ 458 20.2.5.2 Manipulating Destination Number of Incoming INVITE ......................... 459 20.2.5.3 SAS Routing Based on SAS Routing Table .......................................... 461 20.2.5.4 Blocking Calls from Unregistered SAS Users ....................................... 464 20.2.5.5 Configuring SAS Emergency Calls ....................................................... 464 20.2.5.6 Adding SIP Record-Route Header to SIP INVITE ................................ 466 20.2.5.7 Replacing Contact Header for SIP Messages ...................................... 467

20.3 Viewing Registered SAS Users ............................................................................ 468 20.4 SAS Cascading .................................................................................................... 468

21 Transcoding using Third-Party Call Control ................................................. 471 21.1 Using RFC 4117 ................................................................................................... 471 21.2 Using RFC 4240 - NetAnn 2-Party Conferencing ................................................ 472

Part V: Maintenance ..............................................................................................473

22 Basic Maintenance .......................................................................................... 475 22.1 Resetting the Device ............................................................................................ 475 22.2 Locking and Unlocking the Device ....................................................................... 477 22.3 Saving Configuration ............................................................................................ 478

23 High Availability Maintenance ........................................................................ 479 24 Software Upgrade ............................................................................................ 481

24.1 Loading Auxiliary Files ......................................................................................... 481 24.1.1 Call Progress Tones File .......................................................................................484 24.1.2 Prerecorded Tones File .........................................................................................486 24.1.3 CAS Files ...............................................................................................................487 24.1.4 Dial Plan File ..........................................................................................................487 24.1.5 User Information File .............................................................................................489

24.1.5.1 User Information File for PBX Extensions and "Global" Numbers ........ 489 24.1.5.2 User Information File for SBC Users Database .................................... 490

24.1.6 AMD Sensitivity File ...............................................................................................491 24.2 Loading Software Upgrade Key ........................................................................... 493

24.2.1 Loading via BootP/TFTP........................................................................................495 24.3 Software Upgrade Wizard .................................................................................... 496

24.3.1 Hitless Software Upgrade ......................................................................................500 24.4 Backing Up and Loading Configuration File ......................................................... 502

25 Restoring Factory Defaults ............................................................................ 503 25.1 Restoring Defaults using CLI ............................................................................... 503 25.2 Restoring Defaults using an ini File ...................................................................... 504



Part VI: Status, Performance Monitoring and Reporting ....................................505

26 System Status ................................................................................................. 507 26.1 Viewing Device Information .................................................................................. 507 26.2 Viewing Ethernet Port Information ....................................................................... 508 26.3 Viewing Timing Module Information ..................................................................... 509 26.4 Viewing Hardware Components Status ............................................................... 510

27 Carrier-Grade Alarms ...................................................................................... 511 27.1 Viewing Active Alarms .......................................................................................... 511 27.2 Viewing Alarm History .......................................................................................... 512

28 Performance Monitoring ................................................................................. 513 28.1 Viewing Trunk Utilization ...................................................................................... 513 28.2 Viewing MOS per Media Realm ........................................................................... 515 28.3 Viewing Quality of Experience ............................................................................. 516 28.4 Viewing Average Call Duration ............................................................................ 517

29 VoIP Status ...................................................................................................... 519 29.1 Viewing Trunks & Channels Status ...................................................................... 519 29.2 Viewing Active IP Interfaces ................................................................................. 521 29.3 Viewing Performance Statistics ............................................................................ 522 29.4 Viewing Call Counters .......................................................................................... 522 29.5 Viewing SAS/SBC Registered Users ................................................................... 524 29.6 Viewing Call Routing Status ................................................................................. 525 29.7 Viewing IP Connectivity ........................................................................................ 526

30 Reporting Information to External Party ....................................................... 529 30.1 Generating Call Detail Records ............................................................................ 529

30.1.1 CDR Fields for Gateway Application .....................................................................529 30.1.2 Release Reasons in CDR ......................................................................................531 30.1.3 CDR Fields for SBC ...............................................................................................533

30.1.3.1 CDR Fields for SBC Signaling .............................................................. 533 30.1.3.2 CDR Fields for SBC Media ................................................................... 534

30.1.4 Supported RADIUS Attributes ...............................................................................535 30.2 Event Notification using X-Detect Header ............................................................ 538 30.3 Querying Device Channel Resources using SIP OPTIONS ................................ 540

Part VII: Diagnostics ..............................................................................................541

31 Configuring Syslog Settings .......................................................................... 543 32 Viewing Syslog Messages .............................................................................. 545

Part VIII: Appendices .............................................................................................547

A Configuration Parameters Reference ............................................................ 549 A.1 Networking Parameters ........................................................................................ 549


Mediant 3000

A.1.1 Ethernet Parameters ..............................................................................................549 A.1.2 Multiple Network Interfaces and VLAN Parameters ..............................................550 A.1.3 Static Routing Parameters .....................................................................................553 A.1.4 Quality of Service Parameters ...............................................................................553 A.1.5 NAT and STUN Parameters ..................................................................................555 A.1.6 NFS Parameters ....................................................................................................557 A.1.7 DNS Parameters ....................................................................................................558 A.1.8 DHCP Parameters .................................................................................................559 A.1.9 NTP and Daylight Saving Time Parameters ..........................................................560

A.2 Management Parameters ..................................................................................... 561 A.2.1 General Parameters ..............................................................................................561 A.2.2 Web Parameters ....................................................................................................562 A.2.3 Telnet Parameters .................................................................................................564 A.2.4 SNMP Parameters .................................................................................................564 A.2.5 Serial Parameters ..................................................................................................567

A.3 Debugging and Diagnostics Parameters .............................................................. 568 A.3.1 General Parameters ..............................................................................................568 A.3.2 Syslog, CDR and Debug Parameters ....................................................................569 A.3.3 Heartbeat Packet Parameters ...............................................................................572 A.3.4 Resource Allocation Indication Parameters...........................................................572 A.3.5 BootP Parameters .................................................................................................573

A.4 Security Parameters ............................................................................................. 574 A.4.1 General Parameters ..............................................................................................574 A.4.2 HTTPS Parameters ...............................................................................................576 A.4.3 SRTP Parameters ..................................................................................................577 A.4.4 TLS Parameters .....................................................................................................580 A.4.5 SSH Parameters ....................................................................................................582 A.4.6 IPSec Parameters ..................................................................................................583 A.4.7 OCSP Parameters .................................................................................................584

A.5 RADIUS Parameters ............................................................................................ 585 A.6 SIP Media Realm Parameters .............................................................................. 587 A.7 Quality of Experience Reporting .......................................................................... 588 A.8 Control Network Parameters ................................................................................ 589

A.8.1 IP Group, Proxy, Registration and Authentication Parameters .............................589 A.8.2 Network Application Parameters ...........................................................................600

A.9 General SIP Parameters ...................................................................................... 602 A.10 Coders and Profile Parameters ............................................................................ 627 A.11 Channel Parameters ............................................................................................ 636

A.11.1 Voice Parameters ..................................................................................................636 A.11.2 Coder Parameters .................................................................................................639 A.11.3 DTMF Parameters .................................................................................................642 A.11.4 RTP, RTCP and T.38 Parameters .........................................................................643

A.12 Gateway and IP-to-IP Parameters ....................................................................... 648 A.12.1 Fax and Modem Parameters .................................................................................648 A.12.2 DTMF and Hook-Flash Parameters .......................................................................655 A.12.3 Digit Collection and Dial Plan Parameters .............................................................658 A.12.4 Voice Mail Parameters ...........................................................................................660 A.12.5 Supplementary Services Parameters ....................................................................665

A.12.5.1 Caller ID Parameters ............................................................................. 665 A.12.5.2 Call Waiting Parameters ........................................................................ 666 A.12.5.3 Call Forwarding Parameters ................................................................. 666 A.12.5.4 Call Hold Parameters ............................................................................ 667 A.12.5.5 Call Transfer Parameters ...................................................................... 668 A.12.5.6 Emergency Call Parameters ................................................................. 670 A.12.5.7 Call Cut-Through Parameters ............................................................... 670 A.12.5.8 MLPP Parameters ................................................................................. 671



A.12.5.9 TTY/TDD Parameters ............................................................................ 674 A.12.6 PSTN Parameters ..................................................................................................675

A.12.6.1 General Parameters .............................................................................. 675 A.12.6.2 TDM Bus and Clock Timing Parameters ............................................... 679 A.12.6.3 CAS Parameters ................................................................................... 683 A.12.6.4 ISDN Parameters .................................................................................. 686 A.12.6.5 DS3 Parameters .................................................................................... 693 A.12.6.6 SDH/SONET Parameters ...................................................................... 694

A.12.7 ISDN and CAS Interworking Parameters ..............................................................697 A.12.8 Answer and Disconnect Supervision Parameters .................................................714 A.12.9 Tone Parameters ...................................................................................................717

A.12.9.1 Telephony Tone Parameters ................................................................. 717 A.12.9.2 Tone Detection Parameters .................................................................. 719 A.12.9.3 Metering Tone Parameters ................................................................... 721

A.12.10 Trunk Groups and Routing Parameters .................................................................722 A.12.11 Alternative Routing Parameters .............................................................................729 A.12.12 Number Manipulation Parameters .........................................................................732 A.12.13 LDAP Parameters ..................................................................................................745 A.12.14 Least Cost Routing Parameters ............................................................................746

A.13 SBC Parameters .................................................................................................. 747 A.14 Standalone Survivability Parameters ................................................................... 761 A.15 IP Media Parameters ........................................................................................... 766 A.16 Auxiliary and Configuration Files Parameters ...................................................... 771

A.16.1 Auxiliary/Configuration File Name Parameters......................................................771 A.16.2 Automatic Update Parameters ..............................................................................772

B Dialing Plan Notation for Routing and Manipulation .................................... 775 C SIP Message Manipulation Syntax ................................................................. 777

C.1 Actions ................................................................................................................. 777 C.2 Header Types ....................................................................................................... 777

C.2.1 Accept ....................................................................................................................777 C.2.2 Accept-Language ...................................................................................................778 C.2.3 Allow ......................................................................................................................778 C.2.4 Call-Id.....................................................................................................................779 C.2.5 Contact...................................................................................................................779 C.2.6 Cseq .......................................................................................................................780 C.2.7 Diversion ................................................................................................................780 C.2.8 Event ......................................................................................................................781 C.2.9 From .......................................................................................................................782 C.2.10 History-Info ............................................................................................................782 C.2.11 Min-Se and Min-Expires ........................................................................................783 C.2.12 P-Asserted-Identity ................................................................................................784 C.2.13 P-Associated-Uri ....................................................................................................784 C.2.14 P-Called-Party-Id ...................................................................................................785 C.2.15 P-Charging-Vector .................................................................................................786 C.2.16 P-Preferred-Identity ...............................................................................................786 C.2.17 Privacy ...................................................................................................................787 C.2.18 Proxy-Require ........................................................................................................787 C.2.19 Reason...................................................................................................................788 C.2.20 Referred-By ...........................................................................................................789 C.2.21 Refer-To .................................................................................................................789 C.2.22 Remote-Party-Id ....................................................................................................790 C.2.23 Request-Uri ............................................................................................................791 C.2.24 Require ..................................................................................................................792 C.2.25 Resource-Priority ...................................................................................................793 C.2.26 Retry-After .............................................................................................................793


Mediant 3000

C.2.27 Server or User-Agent .............................................................................................794 C.2.28 Service-Route ........................................................................................................794 C.2.29 Session-Expires .....................................................................................................795 C.2.30 Subject ...................................................................................................................796 C.2.31 Supported ..............................................................................................................796 C.2.32 To ...........................................................................................................................797 C.2.33 Unsupported ..........................................................................................................798 C.2.34 Via ..........................................................................................................................798 C.2.35 Warning .................................................................................................................799 C.2.36 Unknown Header ...................................................................................................799

C.3 Structure Definitions ............................................................................................. 800 C.3.1 Event Structure ......................................................................................................800 C.3.2 Host ........................................................................................................................801 C.3.3 MLPP .....................................................................................................................801 C.3.4 Privacy Struct .........................................................................................................801 C.3.5 Reason Structure ...................................................................................................801 C.3.6 SIPCapabilities ......................................................................................................802 C.3.7 URL ........................................................................................................................802

C.4 Random Type ....................................................................................................... 803 C.4.1 Random Strings .....................................................................................................803 C.4.2 Random Integers ...................................................................................................803

C.5 Wildcarding for Header Removal ......................................................................... 804 C.6 Copying Information between Messages using Variables ................................... 804 C.7 Enum Definitions .................................................................................................. 805

C.7.1 AgentRole ..............................................................................................................805 C.7.2 Event Package .......................................................................................................805 C.7.3 MLPP Reason Type ...............................................................................................806 C.7.4 Number Plan ..........................................................................................................806 C.7.5 NumberType ..........................................................................................................806 C.7.6 Privacy ...................................................................................................................807 C.7.7 Reason (Diversion) ................................................................................................807 C.7.8 Reason (Reason Structure) ...................................................................................807 C.7.9 Reason (Remote-Party-Id) .....................................................................................810 C.7.10 Refresher ...............................................................................................................810 C.7.11 Screen....................................................................................................................810 C.7.12 ScreenInd ..............................................................................................................810 C.7.13 TransportType .......................................................................................................811 C.7.14 Type .......................................................................................................................811

C.8 Actions and Types ................................................................................................ 811 C.9 Syntax .................................................................................................................. 816

D DSP Templates ................................................................................................ 821 D.1 Mediant 3000 Full Chassis ................................................................................... 822 D.2 Mediant 3000 16 E1 / 21 T1 ................................................................................. 823 D.3 Mediant 3000 with Single T3 ................................................................................ 825 D.4 DSP Template Mix Feature for Mediant 3000 ...................................................... 826

E Selected Technical Specifications ................................................................. 827


SIP User's Manual Notices

Notice This document describes the AudioCodes Mediant 3000 SIP media gateway, housed with TP-8410 SIP blade(s) or TP-6310 SIP blade(s). 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, AudioCodes cannot guarantee accuracy of printed material after the Date Published nor can it accept responsibility for errors or omissions. Before consulting this document, check the corresponding Release Notes regarding feature preconditions and/or specific support in this release. In cases where there are discrepancies between this document and the Release Notes, the information in the Release Notes supersedes that in this document. Updates to this document and other documents as well as software files can be downloaded by registered customers at http://www.audiocodes.com/downloads.

Copyright 2011 AudioCodes Ltd. All rights reserved. This document is subject to change without notice.

Date Published: November-10-2011

Trademarks AudioCodes, AC, AudioCoded, Ardito, CTI2, CTI, CTI Squared, HD VoIP, HD VoIP Sounds Better, InTouch, IPmedia, Mediant, MediaPack, NetCoder, Netrake, Nuera, Open Solutions Network, OSN, Stretto, TrunkPack, VMAS, VoicePacketizer, VoIPerfect, VoIPerfectHD, Whats Inside Matters, Your Gateway To VoIP and 3GX are trademarks or registered trademarks of AudioCodes Limited. All other products or trademarks are property of their respective owners. Product specifications are subject to change without notice.

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.

Customer Support Customer technical support and service are generally provided by AudioCodes Distributors, Partners, and Resellers from whom the product was purchased. For technical support for products purchased directly from AudioCodes, or for customers subscribed to AudioCodes Customer Technical Support (ACTS), contact [email protected].

Abbreviations and Terminology Each abbreviation, unless widely used, is spelled out in full when first used.


Mediant 3000

Related Documentation

Manual Name

SIP CPE Release Notes

Product Reference Manual for SIP CPE Devices

Mediant 3000 Hardware Installation Manual

Note: The scope of this document does not fully cover security aspects for deploying the device in your environment. Security measures should be done in accordance with your organizations security policies. For basic security guidelines, you can refer to AudioCodes Recommended Security Guidelines document.

Note: Throughout this manual, unless otherwise specified, the following naming conventions are used:

The term device refers to the Mediant 3000 housing either TP-8410 or TP-6310 blades.

The term blade refers to the TP-8410 blade or TP-6310 blade.

Note: Before configuring the device, ensure that it is installed correctly as instructed in the Hardware Installation Manual.

Note: The terms IP-to-Tel and Tel-to-IP refer to the direction of the call relative to the device. IP-to-Tel refers to calls received from the IP network and destined to the PSTN/PBX (i.e., telephone connected directly or indirectly to the device); Tel-to-IP refers to calls received from the PSTN/PBX and destined for the IP network.

Note: T3 is synonymous with DS3.


SIP User's Manual 1. Overview

1 Overview The Mediant 3000 (hereafter referred to as device) is a SIP-based Voice-over-IP (VoIP) media gateway, offering an integrated voice media gateway functionality for voice, data, and fax streaming over IP networks. The device addresses mid-density applications deployed in IP networks, by delivering up to 2,016 simultaneous voice channels. The device is also a fully featured Enterprise class Session Border Controller (SBC), providing a secured voice network (VoIP) deployment based on a Back-to-Back User Agent (B2BUA) implementation. The device's SBC application provides control over SIP signaling and usually also the media streams involved in setting up, conducting, and tearing down calls. The device supports various PSTN physical interfaces, depending on implemented blade: TP-6310 Blade: provides 1+1 protected STM-1/OC-3 interfaces or up to three

scalable T3 PSTN interfaces, which can be connected directly to the PSTN or to the enterprise's PBX

TP-8410 Blade: provides up to 63 E1 or 84 T1 (DS1) PSTN interfaces, and allows different and dedicated physical Ethernet ports for each network type (Media, OAMP and Control)

The device also provides SIP trunking (IP-to-IP and/or Trunk-to-IP) capabilities for Enterprises operating with multiple Internet Telephony Service Providers (ITSP) for VoIP services. The device provides full system redundancy, offering an ideal solution for deploying high-density, high-availability Voice-over-Packet systems. The device can be offered as a standalone IP-to-IP media gateway, PSTN-IP media gateway, or a combined PSTN-IP/IP-to-IP media gateway. The supported offering depends on the installed Software Upgrade Key. The device supports a wide variety of VoIP and cellular vocoders, standards-compliant signaling and call control, and is based on AudioCodes' VoIPerfect architecture core technology. The device supports a broad selection of voice processing related algorithms such as G.711, G.723.1, G.729A Vocoders, G.168-2000 compliant echo cancellation, 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.

Figure 1-1: Mediant 3000 Typical Application


Mediant 3000

The device's chassis provides a compact, rugged 19-inch rack mount unit, 2U high (3.5" or 89 mm), designed to meet NEBS level-3 requirements. The device is a four-slot chassis (four front and rear slots) that houses VoIP communication blades, synchronization and alarm blades, and rear transition modules (RTM). The front and rear blades interface through a backplane located in the middle of the chassis. The device's chassis' modular design allows easy add and replacement of modules. All modules are hot-swappable, allowing component replacement while the system is fully operational with no disruption to service. The device contains the following main components: Up to two VoP communication blades RTM's (amount and type depend on the implemented VoP blade) Up to two SA/M3K Synchronization and Alarm blades Up to two Power Entry modules Up to two Power Supply module These components function in either an Active/Standby redundant or load-sharing configuration to provide full continuous performance coverage and are ideal building blocks for deploying high-density, high availability, Voice-over-Packet systems. The device can operate in one of the following modes: Simplex Mode: This mode provides only one VoP communication blade and one

Synchronization and Alarm blade (SA/M3K). In this mode, the device can also support an optional, integrated CPU (iCPU) for third-party applications.

High Availability 1+1 (HA) Mode: This mode provides system redundancy. The device houses two VoP communication blades (one active and one standby), two RTMs, and two Synchronization and Alarm blades. The device's hardware design contains redundant modules for every part of the system, including redundant network connectivity, comprehensive switchover processing and backup data storage and access, as well as applicable load-sharing schemes. In addition, components are hot-swappable so that they can be replaced while the system is fully operational with no disruption to service. To achieve HA, the software resides on redundant components and performs the following: Monitors system components to detect any hardware failures Handles switchover procedures to overcome possible failures For more details on the HA system, see 'Mediant 3000 High Availability System' on page 18.

1.1 Mediant 3000 High Availability System The High Availability architecture of the Mediant 3000 provides the following main functionality: Redundant Active/Standby configuration Support for both TP-6310 and TP-8410 blades One or many global device IP addresses Private IP address for each blades for maintenance and fallback. Upgrading software without disrupting current calls (Hitless Software Upgrade)



The device supports a 1+1 redundancy scheme termed High Availability (HA). In HA mode, the device includes two VoP blades (TP-8410 or TP-6310) and two SA/M3K blades in the front panel, where one of each blade pair is either in active or redundant mode). The general architecture of the HA system with TP-8410 and TP-6310 are shown respectively in the figures below:

Figure 1-2: High Availability System 1+1 of Mediant 3000 with TP-8410

Figure 1-3: High Availability System 1+1 of Mediant 3000 with TP-6310

On the front panel, the active blade occupies Slot 1 while the redundant blade occupies Slot 3. The SA/M3K blades occupy the front panel's slots 2 (active blade) and 4 (redundant blade). The RTMs on the rear of the chassis is according to implemented blade: TP-8410: the RTM-8410 is located in Slot 2. The RTM-8410 connects to Trunks 1

through 42 (or 1 through 16). Its PSTN and Gigabit Ethernet (GbE) interfaces are connected to the active VoP blade in Slot 1 of the front panel. The second RTM-8410 is located in Slot 4 and connects to Trunks 43 through 84. Trunks connected to this RTM are connected to the active VoP blade. Ethernet interfaces are connected to the VoP blade in Slot 3 of the front panel.

TP-6310: the RTM-6310 occupies Slot 2. Its PSTN and GbE interfaces are always connected to the active VoP blade in Slot 1 of the front panel. The redundant RTM (RTM-6310 Redundant) is located in Slot 3 of the rear panel and provides the GbE


Mediant 3000

interfaces to the redundant 6310 blade in the front panel's Slot 3. The redundant blade is not connected to the external network. It only has an internal link with the active blade. In other words, the user doesn't interact directly with the redundant blade. This link controls the HA feature and is automatically and internally configured.

Two GbE links can be connected to each VoP blade through their corresponding RTMs (i.e., for TP-6310: RTM-6310 for the active TP-6310; RTM-6310 Redundant for the redundant TP-6310). At least one link per VoP blade must be connected, but two links are recommended for LAN redundancy. After system initialization is complete, network access is available only to the active blade. The redundant GbE links have no network access. Each blade (Active and Redundant) has its own private, local IP address (acquired from BootP/DHCP), which is used only for maintenance. This private address is also used as a fallback in case of major system problem which prevents the system from working in HA mode. Typically, this IP address is configured only once (on first time installation of the system). Afterwards, it can be changed only through BootP/DHCP. For normal operation, the HA device uses "global" IP address(es). These are the IP addresses that are used by the Active blade for Media, OAMP and Control interfaces. These IP addresses are configured in the Multiple Interface table.

1.1.1 Initialization Process If both VoP blades are already installed when the device powers up, the VoP blade in Slot 1 always initially serves as the active blade, while the VoP blade in Slot 3 serves as the redundant blade. The active blade is identified by its ACT LED being lit green. If only one blade is installed, (no matter which slot it occupies), it always assumes the active blade. If at a later time, a second VoP blade is added, this second blade serves as the redundant blade. Synchronization between active and redundant VoP blades may take several minutes in which the active blade forwards to the redundant blade all its current configuration data. This data includes files such as voice prompt, call progress tone, and even its software (cmp file). If necessary, a second boot of the redundant blade is issued to apply the new configuration. After the synchronization is complete, the redundant blade is identified by a blinking yellow light in the ACT LED.

Note: When the active blade synchronizes with the redundant blade, all configuration changes (e.g., parameter modifications and uploading of files) are blocked until this process completes and the system is in High Availability mode.

1.1.2 Configuration Stages For the device to be configured for HA, the following installation stages must be performed: Hardware configuration setup (refer to Mediant 3000 and IPmedia 3000 Installation

Manual). The system can be set up initially with only one VoP blade and one SA/M3K blade. However, HA mode is only functional when a second VoP blade and a second SA/M3K blade are added.

Software Upgrade Key includes the HA feature and is installed on both VoP blades (see 'Loading Software Upgrade Key' on page 493). (If the HA feature is specified at the time the system was purchased, then it's already included on both blades).

The device's global IP addresses (i.e., Control, Media, and OAMP) are defined (using the Multiple Interface table) for the active blade to a valid IP address that is different to that of the local IP addresses of the blades. In the HA system, when the blades are initially configured using BootP, the BootP communicates with the two blades using two different local IP addresses: one for the active and one for the redundant blade.



However, the device's global (system) IP addresses are later used for communicating with the IP network. Private (local) IP address: A single IP address (and subnet) per blade that is

acquired through BootP/DHCP and used for maintenance only. It should be configured once (on initial installation of the system). It can later be changed through BootP/DHCP or CLI. This local address is also used as a fallback in case of major system problems which prevents the system from operating in HA mode.

System (global) IP address: IP addresses (i.e., Control, Media, and OAMP) of the HA system configured using the Multiple Interface table. Note that in HA, the private IP addresses are used only when major failure occurs, whereby the blades can report to a Syslog server.

Note: It is recommended to define the local private IP addresses of the blades in the same subnet as that of the device's OAMP interface. This allows the device's blade to send reports to a Syslog server in case of major device failure.

The Mediant 3000 HA is loaded from flash (when loading from BootP/TFTP on first

configuration setup, HA is disabled).

1.1.3 Blade Failure Detection Upon detection of a blade failure, the following occurs: Active blade failure: the redundant (standby) blade issues a switch-over operation.

As part of this switch-over operation, the failed blade is reset and the previously redundant blade becomes the active blade in Simplex mode until a redundant blade is detected. The previously active VoP blade only reboots from its flash (and not from the BootP/DHCP) to ensure that it's operating with the same software version and configuration it received from the active VoP blade. If the failure in the active blade is repaired after reset, it is initialized as the redundant blade and the device returns to HA mode.

Redundant blade failure: the active blade resets the redundant blade and moves itself into Simplex mode until the redundant blade is returned to functional operation. If the failure in the redundant blade is repaired after reset, it's initialized as the redundant blade once again and the device returns to HA mode.


Mediant 3000

1.2 Functional Block Diagrams The functional block diagrams of the Mediant 3000 with the TP-6310 blade and with the TP-8410 blade are shown in the figures below, respectively:

Figure 1-4: Mediant 3000/TP-6310 Functional Block Diagram



Figure 1-5: Mediant 3000/TP-8410 Functional Block Diagram


Mediant 3000

1.3 SIP Overview Session Initiation Protocol (SIP) is an application-layer control (signaling) protocol used on the gateway for creating, modifying, and terminating sessions with one or more participants. These sessions can include Internet telephone calls, media announcements, and conferences. SIP invitations are used to create sessions and carry session descriptions that enable participants to agree on a set of compatible media types. SIP uses elements called Proxy servers to help route requests to the user's current location, authenticate and authorize users for services, implement provider call-routing policies and provide features to users. SIP also provides a registration function that enables users to upload their current locations for use by Proxy servers. SIP implemented in the gateway, complies with the Internet Engineering Task Force (IETF) RFC 3261 (refer to http://www.ietf.org).

Part I Getting Started Before you can begin configuring your device, you need to access it with the default VoIP LAN IP address and change this IP address, if required, to suit your networking scheme. Once modified, you can then access the device using the new LAN IP address. This section describes how to perform this initialization process.

Readers Notes


SIP User's Manual 2. Assigning the VoIP LAN IP Address

2 Assigning the VoIP LAN IP Address This section describes how to change the default VoIP LAN IP address for Simplex configuration so that it corresponds to your networking scheme. To assign IP addresses to High Availability (HA) configuration, see Assigning an IP Address for Mediant 3000 HA on page 31. The default VoIP LAN IP address is listed in the table below:

Figure 2-1: Default VoIP LAN IP Address

IP Address Value

Private IP Address TP-6310 or TP-8410 Blade in Slot 1: 10.1.10.10 TP-6310 or TP-8410 Blade in Slot 3: 10.1.10.11 (only for

HA mode)

Subnet Mask 255.255.0.0

Default Gateway IP Address 0.0.0.0

You can use any of the following management

Documents

LTRT-89712 Mediant 3000 SIP User's Manual Ver. 6.4