AudioCodes Mediant 2000 User manual

Mediant™ 2000
VoIP Media Gateway
Digital PSTN Lines
User's Manual
Version 6.6
February 2015
Document # LTRT-68822

Version 6.6 3 Mediant 2000
User's Manual Contents
Table of Contents
1Overview ............................................................................................................19
1.1 SIP Overview .........................................................................................................20
Getting Started with Initial Connectivity................................................................25
2Assigning the OAMP LAN IP Address.............................................................27
2.1 Web Interface.........................................................................................................27
2.2 BootP/TFTP Server................................................................................................29
2.3 CLI..........................................................................................................................30
Management Tools..................................................................................................31
3Introduction .......................................................................................................33
4Web-Based Management..................................................................................35
4.1 Getting Acquainted with the Web Interface............................................................35
4.1.1 Computer Requirements..........................................................................................35
4.1.2 Accessing the Web Interface...................................................................................35
4.1.3 Areas of the GUI......................................................................................................36
4.1.4 Toolbar Description..................................................................................................38
4.1.5 Navigation Tree .......................................................................................................39
4.1.5.1 Displaying Navigation Tree in Basic and Full View..................................39
4.1.5.2 Showing / Hiding the Navigation Pane.....................................................40
4.1.6 Working with Configuration Pages ..........................................................................41
4.1.6.1 Accessing Pages......................................................................................41
4.1.6.2 Viewing Parameters.................................................................................42
4.1.6.3 Modifying and Saving Parameters...........................................................43
4.1.6.4 Working with Tables.................................................................................44
4.1.7 Searching for Configuration Parameters.................................................................47
4.1.8 Working with Scenarios...........................................................................................48
4.1.8.1 Creating a Scenario..................................................................................48
4.1.8.2 Accessing a Scenario...............................................................................50
4.1.8.3 Editing a Scenario....................................................................................51
4.1.8.4 Saving a Scenario to a PC.......................................................................52
4.1.8.5 Loading a Scenario to the Device............................................................53
4.1.8.6 Deleting a Scenario..................................................................................53
4.1.8.7 Quitting Scenario Mode............................................................................54
4.1.9 Creating a Login Welcome Message.......................................................................55
4.1.10 Getting Help.............................................................................................................56
4.1.11 Logging Off the Web Interface.................................................................................56
4.2 Viewing the Home Page.........................................................................................57
4.2.1 Assigning a Port Name............................................................................................59
4.2.2 Switching Between Modules....................................................................................59
4.3 Configuring Web User Accounts............................................................................60
4.3.1 Basic User Accounts Configuration.........................................................................61
4.3.2 Advanced User Accounts Configuration..................................................................63
4.4 Displaying Login Information upon Login...............................................................66
4.5 Configuring Web Security Settings ........................................................................67
4.6 Web Login Authentication using Smart Cards .......................................................68
4.7 Configuring Web and Telnet Access List...............................................................68

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4.8 Configuring RADIUS Settings................................................................................70
5CLI-Based Management....................................................................................71
5.1 Enabling CLI using Telnet......................................................................................71
5.2 Enabling CLI using SSH and RSA Public Key.......................................................71
5.3 Establishing a CLI Session ....................................................................................73
5.4 CLI Commands......................................................................................................74
5.4.1 Status Commands...................................................................................................74
5.4.2 Ping Command........................................................................................................77
5.4.3 Test Call (TC) Commands.......................................................................................77
5.4.4 Management Commands ........................................................................................78
5.4.5 Configuration Commands........................................................................................79
5.4.6 PSTN Commands....................................................................................................79
5.4.7 LDAP Commands....................................................................................................80
6SNMP-Based Management...............................................................................81
6.1 Configuring SNMP Community Strings..................................................................81
6.2 Configuring SNMP Trap Destinations....................................................................82
6.3 Configuring SNMP Trusted Managers...................................................................83
6.4 Configuring SNMP V3 Users..................................................................................84
7EMS-Based Management..................................................................................87
8INI File-Based Management..............................................................................89
8.1 INI File Format .......................................................................................................89
8.1.1 Configuring Individual ini File Parameters...............................................................89
8.1.2 Configuring Table ini File Parameters.....................................................................89
8.1.3 General ini File Formatting Rules............................................................................91
8.2 Loading an ini File..................................................................................................91
8.3 Modifying an ini File ...............................................................................................92
8.4 Secured Encoded ini File.......................................................................................92
General System Settings ........................................................................................93
9Configuring Certificates ...................................................................................95
9.1 Replacing the Device's Certificate .........................................................................95
9.2 Loading a Private Key............................................................................................96
9.3 Mutual TLS Authentication.....................................................................................98
9.4 Configuring Certificate Revocation Checking (OCSP)...........................................98
9.5 Self-Signed Certificates........................................................................................100
9.6 Loading Certificate Chain for Trusted Root..........................................................100
10 Date and Time..................................................................................................101
10.1 Configuring Date and Time Manually...................................................................101
10.2 Automatic Date and Time through SNTP Server.................................................101
General VoIP Configuration..................................................................................103
11 Network............................................................................................................105
11.1 Ethernet Interface Configuration..........................................................................105
11.2 Ethernet Interface Redundancy ...........................................................................105

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11.3 Configuring IP Network Interfaces .......................................................................106
11.3.1 Assigning NTP Services to Application Types ......................................................111
11.3.2 Multiple Interface Table Configuration Rules.........................................................111
11.3.3 Troubleshooting the Multiple Interface Table........................................................112
11.3.4 Networking Configuration Examples .....................................................................112
11.3.4.1 One VoIP Interface for All Applications................................................. 113
11.3.4.2 VoIP Interface per Application Type...................................................... 113
11.3.4.3 VoIP Interfaces for Combined Application Types ................................. 114
11.3.4.4 VoIP Interfaces with Multiple Default Gateways................................... 114
11.4 Configuring the IP Routing Table.........................................................................115
11.4.1 Interface Column ...................................................................................................117
11.4.2 Routing Table Configuration Summary and Guidelines........................................117
11.4.3 Troubleshooting the Routing Table .......................................................................118
11.5 Configuring Quality of Service..............................................................................118
11.6 Disabling ICMP Redirect Messages.....................................................................120
11.7 DNS......................................................................................................................120
11.7.1 Configuring the Internal DNS Table.......................................................................120
11.7.2 Configuring the Internal SRV Table.......................................................................122
11.8 Configuring NFS Settings.....................................................................................123
11.9 Network Address Translation Support .................................................................125
11.9.1 Device Located behind NAT..................................................................................125
11.9.1.1 Configuring STUN................................................................................. 126
11.9.1.2 Configuring a Static NAT IP Address for All Interfaces......................... 127
11.9.1.3 Configuring NAT Translation per IP Interface....................................... 127
11.9.2 Remote UA behind NAT........................................................................................129
11.9.2.1 First Incoming Packet Mechanism........................................................ 129
11.9.2.2 No-Op Packets...................................................................................... 130
11.10Robust Receipt of Media Streams .......................................................................130
11.11Multiple Routers Support......................................................................................131
11.12IP Multicasting......................................................................................................131
12 Security............................................................................................................133
12.1 Configuring Firewall Settings ...............................................................................133
12.2 Configuring General Security Settings.................................................................137
12.3 IPSec and Internet Key Exchange.......................................................................137
12.3.1 Enabling IPSec......................................................................................................138
12.3.2 Configuring IP Security Proposal Table.................................................................139
12.3.3 Configuring IP Security Associations Table...........................................................140
12.4 Intrusion Detection System..................................................................................144
12.4.1 Enabling IDS..........................................................................................................144
12.4.2 Configuring IDS Policies........................................................................................145
12.4.3 Assigning IDS Policies...........................................................................................148
12.4.4 Viewing IDS Alarms...............................................................................................150
13 Media................................................................................................................153
13.1 Configuring Voice Settings...................................................................................153
13.1.1 Configuring Voice Gain (Volume) Control .............................................................153
13.1.2 Silence Suppression (Compression).....................................................................154
13.1.3 Echo Cancellation..................................................................................................154
13.2 Fax and Modem Capabilities................................................................................155
13.2.1 Fax/Modem Operating Modes...............................................................................156
13.2.2 Fax/Modem Transport Modes ...............................................................................156
13.2.2.1 T.38 Fax Relay Mode............................................................................ 156

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13.2.2.2 G.711 Fax / Modem Transport Mode.................................................... 158
13.2.2.3 Fax Fallback.......................................................................................... 158
13.2.2.4 Fax/Modem Bypass Mode .................................................................... 159
13.2.2.5 Fax / Modem NSE Mode....................................................................... 160
13.2.2.6 Fax / Modem Transparent with Events Mode....................................... 161
13.2.2.7 Fax / Modem Transparent Mode........................................................... 161
13.2.2.8 RFC 2833 ANS Report upon Fax/Modem Detection............................ 162
13.2.3 V.34 Fax Support...................................................................................................162
13.2.3.1 Bypass Mechanism for V.34 Fax Transmission.................................... 163
13.2.3.2 Relay Mode for T.30 and V.34 Faxes ................................................... 163
13.2.4 V.152 Support........................................................................................................164
13.2.5 Fax Transmission behind NAT..............................................................................164
13.3 Configuring RTP/RTCP Settings..........................................................................165
13.3.1 Configuring the Dynamic Jitter Buffer....................................................................165
13.3.2 Comfort Noise Generation.....................................................................................166
13.3.3 Dual-Tone Multi-Frequency Signaling...................................................................167
13.3.3.1 Configuring DTMF Transport Types...................................................... 167
13.3.3.2 Configuring RFC 2833 Payload ............................................................ 168
13.3.4 RTP Multiplexing (ThroughPacket)........................................................................169
13.3.5 Configuring RTP Base UDP Port...........................................................................170
13.4 Configuring IP Media Settings..............................................................................171
13.4.1 Answer Machine Detector (AMD)..........................................................................171
13.4.2 Automatic Gain Control (AGC)..............................................................................175
13.5 Configuring DSP Templates.................................................................................176
13.6 Configuring Media Realms...................................................................................177
13.6.1 Configuring Bandwidth Management per Media Realm........................................179
13.7 Configuring Media Security..................................................................................181
14 Services ...........................................................................................................183
14.1 Routing Based on LDAP Active Directory Queries ..............................................183
14.1.1 Configuring the LDAP Server................................................................................183
14.1.2 Configuring the Device's LDAP Cache..................................................................184
14.1.3 Active Directory based Tel-to-IP Routing for Microsoft Lync.................................186
14.1.3.1 Querying the AD and Routing Priority................................................... 186
14.1.3.2 Configuring AD-Based Routing Rules................................................... 189
14.1.3.3 Querying the AD for Calling Name........................................................ 191
14.2 Least Cost Routing...............................................................................................192
14.2.1 Overview................................................................................................................192
14.2.2 Configuring LCR....................................................................................................194
14.2.2.1 Enabling the LCR Feature..................................................................... 194
14.2.2.2 Configuring Cost Groups....................................................................... 196
14.2.2.3 Configuring Time Bands for Cost Groups............................................. 197
14.2.2.4 Assigning Cost Groups to Routing Rules.............................................. 198
15 Enabling Applications.....................................................................................199
16 Control Network ..............................................................................................201
16.1 Configuring SRD Table........................................................................................201
16.2 Configuring SIP Interface Table...........................................................................202
16.3 Configuring IP Groups..........................................................................................204
16.4 Configuring Proxy Sets Table ..............................................................................209
17 SIP Definitions.................................................................................................215
17.1 Configuring SIP Parameters ................................................................................215
17.2 Configuring Account Table...................................................................................215

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17.3 Configuring Proxy and Registration Parameters..................................................218
17.3.1 SIP Message Authentication Example ..................................................................219
17.4 Configuring SIP Message Manipulation...............................................................221
17.5 Configuring SIP Message Policy Rules................................................................225
18 Coders and Profiles ........................................................................................229
18.1 Configuring Coders..............................................................................................229
18.2 Configuring Coder Groups...................................................................................232
18.3 Configuring Tel Profile..........................................................................................233
18.4 Configuring IP Profiles .........................................................................................235
Gateway and IP-to-IP Application ........................................................................241
19 Introduction .....................................................................................................243
20 IP-to-IP Routing Application...........................................................................245
20.1 Theory of Operation.............................................................................................246
20.1.1 Proxy Sets .............................................................................................................247
20.1.2 IP Groups...............................................................................................................247
20.1.3 Inbound and Outbound IP Routing Rules..............................................................248
20.1.4 Accounts................................................................................................................249
20.2 IP-to-IP Routing Configuration Example..............................................................249
20.2.1 Step 1: Enable the IP-to-IP Capabilities................................................................251
20.2.2 Step 2: Configure the Number of Media Channels................................................251
20.2.3 Step 3: Define a Trunk Group for the Local PSTN................................................252
20.2.4 Step 4: Configure the Proxy Sets..........................................................................252
20.2.5 Step 5: Configure the IP Groups ...........................................................................254
20.2.6 Step 6: Configure the Account Table.....................................................................255
20.2.7 Step 7: Configure IP Profiles for Voice Coders .....................................................256
20.2.8 Step 8: Configure Inbound IP Routing...................................................................257
20.2.9 Step 9: Configure Outbound IP Routing................................................................259
20.2.10Step 10: Configure Destination Phone Number Manipulation...............................260
21 Digital PSTN.....................................................................................................261
21.1 Configuring Trunk Settings...................................................................................261
21.2 TDM and Timing...................................................................................................263
21.2.1 Configuring TDM Bus Settings..............................................................................263
21.2.2 Clock Settings........................................................................................................264
21.2.2.1 Recovering Clock from PSTN Line Interface ........................................ 264
21.2.2.2 Configuring Internal Clock as Clock Source ......................................... 265
21.3 Configuring CAS State Machines.........................................................................265
21.4 Configuring Digital Gateway Parameters.............................................................267
21.5 Tunneling Applications.........................................................................................268
21.5.1 TDM Tunneling......................................................................................................268
21.5.1.1 DSP Pattern Detector............................................................................ 271
21.5.2 QSIG Tunneling.....................................................................................................271
21.6 ISDN Non-Facility Associated Signaling (NFAS).................................................272
21.6.1 NFAS Interface ID..................................................................................................273
21.6.2 Working with DMS-100 Switches ..........................................................................273
21.6.3 Creating an NFAS-Related Trunk Configuration...................................................274
21.6.4 Performing Manual D-Channel Switchover in NFAS Group..................................275
21.7 ISDN Overlap Dialing...........................................................................................275

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21.7.1 Collecting ISDN Digits and Sending Complete Number in SIP.............................275
21.7.2 Interworking ISDN Overlap Dialing with SIP According to RFC 3578...................276
21.8 Redirect Number and Calling Name (Display).....................................................277
22 Trunk Group ....................................................................................................279
22.1 Configuring Trunk Group Table............................................................................279
22.2 Configuring Trunk Group Settings........................................................................281
23 Manipulation....................................................................................................287
23.1 Configuring General Settings...............................................................................287
23.2 Configuring Source/Destination Number Manipulation Rules..............................287
23.3 Manipulating Number Prefix.................................................................................293
23.4 SIP Calling Name Manipulations..........................................................................294
23.5 Configuring Redirect Number IP to Tel................................................................296
23.6 Manipulating Redirected and Diverted Numbers for Call Diversion.....................300
23.7 Mapping NPI/TON to SIP Phone-Context............................................................301
23.8 Configuring Release Cause Mapping ..................................................................302
23.8.1 Fixed Mapping of SIP Response to ISDN Release Reason..................................303
23.8.2 Fixed Mapping of ISDN Release Reason to SIP Response..................................305
23.8.3 Reason Header......................................................................................................307
23.9 Numbering Plans and Type of Number................................................................307
24 Routing.............................................................................................................309
24.1 Configuring General Routing Parameters............................................................309
24.2 Configuring Outbound IP Routing Table..............................................................309
24.3 Configuring Inbound IP Routing Table.................................................................317
24.4 IP Destinations Connectivity Feature...................................................................320
24.5 Alternative Routing for Tel-to-IP Calls..................................................................322
24.5.1 Alternative Routing Based on IP Connectivity.......................................................322
24.5.2 Alternative Routing Based on SIP Responses......................................................323
24.5.3 PSTN Fallback.......................................................................................................325
24.6 Alternative Routing for IP-to-Tel Calls..................................................................325
24.6.1 Alternative Routing to Trunk upon Q.931 Call Release Cause Code ...................325
24.6.2 Alternative Routing to an IP Destination upon a Busy Trunk ................................326
25 Configuring DTMF and Dialing.......................................................................329
25.1 Dialing Plan Features...........................................................................................330
25.1.1 Digit Mapping.........................................................................................................330
25.1.2 External Dial Plan File ...........................................................................................332
26 Configuring Supplementary Services ...........................................................333
26.1 Call Hold and Retrieve.........................................................................................334
26.2 Call Transfer.........................................................................................................334
26.2.1 Consultation Call Transfer.....................................................................................334
26.2.2 Consultation Transfer for QSIG Path Replacement..............................................335
26.2.3 Blind Call Transfer.................................................................................................335
26.3 Call Forward.........................................................................................................336
26.4 Message Waiting Indication.................................................................................336
26.5 Emergency E911 Phone Number Services..........................................................338
26.5.1 Pre-empting Existing Calls for E911 IP-to-Tel Calls..............................................338
26.5.2 Enhanced 9-1-1 Support for Lync Server 2010.....................................................338
26.5.2.1 About E9-1-1 Services .......................................................................... 339

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26.5.2.2 Microsoft Lync Server 2010 and E9-1-1................................................ 340
26.5.2.3 AudioCodes ELIN Gateway for Lync Server 2010 E9-1-1 Calls to PSTN
344
26.5.2.4 Configuring AudioCodes ELIN Gateway............................................... 348
26.6 Multilevel Precedence and Preemption................................................................349
26.6.1 MLPP Preemption Events in SIP Reason Header ................................................352
26.6.2 Precedence Ring Tone..........................................................................................353
26.7 Advice of Charge Services for Euro ISDN ...........................................................353
26.8 Configuring Voice Mail.........................................................................................354
Stand-Alone Survivability Application.................................................................355
27 Overview ..........................................................................................................357
27.1 SAS Operating Modes .........................................................................................357
27.1.1 SAS Outbound Mode.............................................................................................358
27.1.1.1 Normal State ......................................................................................... 358
27.1.1.2 Emergency State................................................................................... 358
27.1.2 SAS Redundant Mode...........................................................................................359
27.1.2.1 Normal State ......................................................................................... 360
27.1.2.2 Emergency State................................................................................... 360
27.1.2.3 Exiting Emergency and Returning to Normal State .............................. 360
27.2 SAS Routing.........................................................................................................361
27.2.1 SAS Routing in Normal State................................................................................361
27.2.2 SAS Routing in Emergency State..........................................................................363
28 SAS Configuration ..........................................................................................365
28.1 General SAS Configuration..................................................................................365
28.1.1 Enabling the SAS Application................................................................................365
28.1.2 Configuring Common SAS Parameters.................................................................366
28.2 Configuring SAS Outbound Mode........................................................................368
28.3 Configuring SAS Redundant Mode......................................................................369
28.4 Configuring Gateway Application with SAS .........................................................369
28.4.1 Gateway with SAS Outbound Mode......................................................................370
28.4.2 Gateway with SAS Redundant Mode....................................................................371
28.5 Advanced SAS Configuration...............................................................................372
28.5.1 Manipulating URI user part of Incoming REGISTER.............................................372
28.5.2 Manipulating Destination Number of Incoming INVITE.........................................374
28.5.3 SAS Routing Based on IP-to-IP Routing Table.....................................................376
28.5.4 Blocking Calls from Unregistered SAS Users........................................................381
28.5.5 Configuring SAS Emergency Calls........................................................................381
28.5.6 Adding SIP Record-Route Header to SIP INVITE.................................................382
28.5.7 Re-using TCP Connections...................................................................................382
28.5.8 Replacing Contact Header for SIP Messages.......................................................383
28.6 Viewing Registered SAS Users............................................................................384
29 SAS Cascading................................................................................................385
IP Media Capabilities.............................................................................................387
30 Transcoding using Third-Party Call Control.................................................389
30.1 Using RFC 4117...................................................................................................389

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Maintenance...........................................................................................................391
31 Basic Maintenance..........................................................................................393
31.1 Resetting the Device............................................................................................393
31.2 Remotely Resetting Device using SIP NOTIFY...................................................394
31.3 Locking and Unlocking the Device.......................................................................395
31.4 Saving Configuration............................................................................................396
32 Restarting a B-Channel...................................................................................397
33 Software Upgrade............................................................................................399
33.1 Loading Auxiliary Files.........................................................................................399
33.1.1 Call Progress Tones File .......................................................................................401
33.1.2 Prerecorded Tones File.........................................................................................403
33.1.3 CAS Files...............................................................................................................404
33.1.4 Dial Plan File..........................................................................................................404
33.1.4.1 Creating a Dial Plan File........................................................................ 404
33.1.4.2 Dialing Plans for Digit Collection........................................................... 405
33.1.4.3 Dial Plan Prefix Tags for IP-to-Tel Routing........................................... 407
33.1.4.4 Obtaining IP Destination from Dial Plan File......................................... 409
33.1.4.5 Modifying ISDN-to-IP Calling Party Number......................................... 409
33.1.5 User Information File .............................................................................................410
33.1.5.1 User Information File for PBX Extensions and "Global" Numbers........ 410
33.1.5.2 Enabling the User Info Table................................................................. 412
33.1.6 AMD Sensitivity File...............................................................................................412
33.2 Software License Key ..........................................................................................415
33.2.1 Obtaining the Software License Key File...............................................................415
33.2.2 Installing the Software License Key.......................................................................416
33.2.2.1 Installing Software License Key using Web Interface........................... 417
33.2.2.2 Installing Software License Key using BootP/TFTP.............................. 418
33.3 Software Upgrade Wizard....................................................................................419
33.4 Backing Up and Loading Configuration File.........................................................422
34 Automatic Update............................................................................................423
34.1 BootP Request and DHCP Discovery upon Device Initialization.........................423
34.2 Obtaining IP Address Automatically using DHCP................................................425
34.3 Configuring Automatic Update.............................................................................425
34.4 Automatic Configuration Methods........................................................................427
34.4.1 Local Configuration Server with BootP/TFTP........................................................427
34.4.2 DHCP-based Configuration Server .......................................................................428
34.4.3 Configuration using DHCP Option 67....................................................................428
34.4.4 TFTP Configuration using DHCP Option 66..........................................................429
34.4.5 HTTP-based Automatic Updates...........................................................................429
34.4.6 Configuration using FTP or NFS ...........................................................................430
34.4.7 Configuration using AudioCodes EMS..................................................................430
34.5 Loading Files Securely (Disabling TFTP).............................................................431
34.6 Remotely Triggering Auto Update using SIP NOTIFY.........................................432
35 Restoring Factory Defaults ............................................................................433
35.1 Restoring Defaults using CLI ...............................................................................433
35.2 Restoring Defaults using an ini File......................................................................434
Status, Performance Monitoring and Reporting.................................................435

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36 System Status .................................................................................................437
36.1 Viewing Device Information..................................................................................437
36.2 Viewing Ethernet Port Information .......................................................................438
37 Carrier-Grade Alarms......................................................................................439
37.1 Viewing Active Alarms..........................................................................................439
37.2 Viewing Alarm History..........................................................................................439
38 Performance Monitoring.................................................................................441
38.1 Viewing MOS per Media Realm...........................................................................441
38.2 Viewing Trunk Utilization......................................................................................442
39 VoIP Status ......................................................................................................445
39.1 Viewing Trunks & Channels Status......................................................................445
39.2 Viewing NFAS Groups and D-Channel Status.....................................................447
39.3 Viewing Active IP Interfaces.................................................................................448
39.4 Viewing Performance Statistics............................................................................449
39.5 Viewing Call Counters..........................................................................................449
39.6 Viewing Registered Users....................................................................................451
39.7 Viewing Registration Status.................................................................................452
39.8 Viewing Call Routing Status.................................................................................453
39.9 Viewing IP Connectivity........................................................................................454
40 Reporting Information to External Party .......................................................457
40.1 RTP Control Protocol Extended Reports (RTCP XR)..........................................457
40.2 Generating Call Detail Records............................................................................460
40.2.1 Configuring CDR Reporting...................................................................................460
40.2.2 CDR Field Description...........................................................................................461
40.2.2.1 CDR Fields for Gateway/IP-to-IP Application ....................................... 461
40.2.2.2 Release Reasons in CDR..................................................................... 464
40.3 Configuring RADIUS Accounting .........................................................................467
40.4 Event Notification using X-Detect Header............................................................470
40.5 Querying Device Channel Resources using SIP OPTIONS ................................472
Diagnostics............................................................................................................473
41 Syslog and Debug Recordings ......................................................................475
41.1 Syslog Message Format ......................................................................................475
41.1.1 Event Representation in Syslog Messages...........................................................476
41.1.2 Identifying AudioCodes Syslog Messages using Facility Levels...........................478
41.1.3 Syslog Fields for Automatic Machine Detection....................................................478
41.1.4 SNMP Alarms in Syslog Messages.......................................................................479
41.2 Configuring Syslog Settings.................................................................................479
41.3 Configuring Debug Recording..............................................................................480
41.4 Filtering Syslog Messages and Debug Recordings .............................................481
41.4.1 Filtering IP Network Traces ...................................................................................483
41.5 Viewing Syslog Messages ...................................................................................484
41.6 Collecting Debug Recording Messages...............................................................485

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42 Self-Testing......................................................................................................487
43 Testing SIP Signaling Calls............................................................................489
43.1 Configuring Test Call Endpoints...........................................................................489
43.1.1 Starting, Stopping and Restarting Test Calls.........................................................492
43.1.2 Viewing Test Call Statistics....................................................................................493
43.2 Configuring DTMF Tones for Test Calls...............................................................494
43.3 Configuring Basic Test Call..................................................................................495
43.4 Test Call Configuration Examples........................................................................496
Appendix................................................................................................................499
44 Dialing Plan Notation for Routing and Manipulation....................................501
45 Configuration Parameters Reference............................................................503
45.1 Networking Parameters........................................................................................503
45.1.1 Ethernet Parameters..............................................................................................503
45.1.2 Multiple VoIP Network Interfaces and VLAN Parameters.....................................504
45.1.3 Routing Parameters...............................................................................................505
45.1.4 Quality of Service Parameters...............................................................................506
45.1.5 NAT and STUN Parameters..................................................................................508
45.1.6 NFS Parameters....................................................................................................509
45.1.7 DNS Parameters....................................................................................................510
45.1.8 DHCP Parameters.................................................................................................511
45.1.9 NTP and Daylight Saving Time Parameters..........................................................512
45.2 Management Parameters.....................................................................................513
45.2.1 General Parameters ..............................................................................................513
45.2.2 Web Parameters....................................................................................................513
45.2.3 Telnet Parameters.................................................................................................517
45.2.4 SNMP Parameters.................................................................................................517
45.3 Debugging and Diagnostics Parameters..............................................................520
45.3.1 General Parameters ..............................................................................................520
45.3.2 SIP Test Call Parameters......................................................................................522
45.3.3 Syslog, CDR and Debug Parameters....................................................................522
45.3.4 Resource Allocation Indication Parameters...........................................................526
45.3.5 BootP Parameters .................................................................................................526
45.4 Security Parameters.............................................................................................528
45.4.1 General Parameters ..............................................................................................528
45.4.2 HTTPS Parameters ...............................................................................................529
45.4.3 SRTP Parameters..................................................................................................530
45.4.4 TLS Parameters.....................................................................................................533
45.4.5 SSH Parameters....................................................................................................535
45.4.6 IPSec Parameters..................................................................................................536
45.4.7 OCSP Parameters.................................................................................................537
45.4.8 IDS Parameters.....................................................................................................538
45.5 RADIUS Parameters............................................................................................539
45.6 SIP Media Realm Parameters..............................................................................541
45.7 Control Network Parameters................................................................................542
45.7.1 IP Group, Proxy, Registration and Authentication Parameters.............................542
45.7.2 Network Application Parameters...........................................................................552
45.8 General SIP Parameters......................................................................................553
45.9 Coders and Profile Parameters............................................................................580
45.10Channel Parameters............................................................................................583

Version 6.6 13 Mediant 2000
User's Manual Contents
45.10.1Voice Parameters..................................................................................................583
45.10.2Coder Parameters .................................................................................................586
45.10.3DTMF Parameters.................................................................................................587
45.10.4RTP, RTCP and T.38 Parameters.........................................................................588
45.11Gateway and IP-to-IP Parameters.......................................................................593
45.11.1Fax and Modem Parameters.................................................................................593
45.11.2DTMF and Hook-Flash Parameters.......................................................................598
45.11.3Digit Collection and Dial Plan Parameters.............................................................601
45.11.4Voice Mail Parameters...........................................................................................603
45.11.5Supplementary Services Parameters....................................................................608
45.11.5.1Caller ID Parameters............................................................................. 608
45.11.5.2Call Waiting Parameters........................................................................ 610
45.11.5.3Call Forwarding Parameters ................................................................. 610
45.11.5.4Call Hold Parameters............................................................................ 610
45.11.5.5Call Transfer Parameters...................................................................... 611
45.11.5.6MLPP and Emergency Call Parameters ............................................... 613
45.11.5.7Call Cut-Through Parameters............................................................... 618
45.11.5.8TTY/TDD Parameters............................................................................ 618
45.11.6PSTN Parameters..................................................................................................619
45.11.6.1General Parameters.............................................................................. 619
45.11.6.2TDM Bus and Clock Timing Parameters............................................... 623
45.11.6.3CAS Parameters ................................................................................... 625
45.11.6.4ISDN Parameters.................................................................................. 628
45.11.7ISDN and CAS Interworking Parameters ..............................................................635
45.11.8Answer and Disconnect Supervision Parameters.................................................650
45.11.9Tone Parameters...................................................................................................653
45.11.9.1Telephony Tone Parameters................................................................. 653
45.11.9.2Tone Detection Parameters.................................................................. 657
45.11.9.3Metering Tone Parameters ................................................................... 659
45.11.10 Trunk Groups and Routing Parameters ...........................................................660
45.11.11 IP Connectivity Parameters..............................................................................666
45.11.12 Alternative Routing Parameters .......................................................................667
45.11.13 Number Manipulation Parameters....................................................................669
45.12Least Cost Routing Parameters...........................................................................679
45.13LDAP Parameters................................................................................................680
45.14Standalone Survivability Parameters...................................................................682
45.15IP Media Parameters ...........................................................................................687
45.16Auxiliary and Configuration File Name Parameters.............................................692
45.17Automatic Update Parameters.............................................................................693
46 DSP Templates................................................................................................695
47 Selected Technical Specifications.................................................................697

User's Manual 14 Document #: LTRT-68822
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Reader's Notes

Version 6.6 15 Mediant 2000
User's Manual Notices
Notice
This document describes the AudioCodes Mediant 2000 Voice-over-IP (VoIP) media
gateway.
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 2015 AudioCodes Ltd. All rights reserved.
This document is subject to change without notice.
Date Published: February-22-2015
Trademarks
AudioCodes, AC, AudioCoded, Ardito, CTI2, CTI², 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, What’s 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 [e-mail].
Abbreviations and Terminology
Each abbreviation, unless widely used, is spelled out in full when first used.
Throughout this manual, unless otherwise specified, the term device refers to the
Mediant 2000.

User's Manual 16 Document #: LTRT-68822
Mediant 2000
Related Documentation
Manual Name
SIP CPE Release Notes
Mediant 2000 Hardware Installation Manual
CPE Configuration Guide for IP Voice Mail
DConvert User's Guide
AcBootP Utility User's Guide
SNMP User's Guide
CAS Protocol Table User's Guide
Notes and Warnings
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 organization’s security policies. For basic security guidelines, you should
refer to AudioCodes Recommended Security Guidelines document.
Note: Before configuring the device, ensure that it is installed correctly as instructed
in the Hardware Installation Manual.
Note: This device is considered an INDOOR unit and therefore must be installed only
indoors.
Legal Notice:
•By default, the device supports export-grade (40-bit and 56-bit) encryption due to
US government restrictions on the export of security technologies. To enable 128-
bit and 256-bit encryption on your device, contact your AudioCodes sales
representative.
•This device includes software developed by the OpenSSL Project for use in the
OpenSSL Toolkit (http://www.openssl.org/).
•This device includes cryptographic software written by Eric Young
([e-mail]).

Version 6.6 17 Mediant 2000
User's Manual Notices
Document Revision Record
LTRT Description
68816 Initial document release for Version 6.6.
68822 Serial port interface removed; Restoring defaults updated; Blade specifications
removed.
Documentation Feedback
AudioCodes continually strives to produce high quality documentation. If you have any comments
(suggestions or errors) regarding this document, please fill out the Documentation Feedback form on
our Web site at http://www.audiocodes.com/downloads.

User's Manual 18 Document #: LTRT-68822
Mediant 2000
Reader's Notes

Version 6.6 19 Mediant 2000
User's Manual 1. Overview
1 Overview
This manual provides you with the information for installing, configuring, and operating the
Mediant 2000 SIP gateway (referred to throughout this manual as device).
The device is a SIP-based Voice-over-IP (VoIP) media gateway. The device enables voice,
fax, and data traffic to be sent over the same IP network.
The device provides excellent voice quality and optimized packet voice streaming over IP
networks. The device uses the award-winning, field-proven VoIPerfect™ voice
compression technology.
The device incorporates 1, 2, 4, 8 or 16 E1, T1, or J1 spans for direct connection to the
Public Switched Telephone Network (PSTN) / Private Branch Exchange (PBX) through
digital telephony trunks. The device also provides SIP trunking capabilities for Enterprises
operating with multiple Internet Telephony Service Providers (ITSP) for VoIP services. The
device includes two 10/100Base-TX Ethernet ports, providing redundancy connection to
the network.
The device supports up to 480 simultaneous VoIP or Fax over IP (FoIP) calls, supporting
various Integrated Services Digital Network (ISDN) Primary Rate Interface (PRI) protocols
such as EuroISDN, North American NI2, Lucent™ 4/5ESS, Nortel™DMS-100 and others.
In addition, it supports different variants of Channel Associated Signaling (CAS) protocols
for E1 and T1 spans, including MFC R2, E&M immediate start, E&M delay dial/start, loop
start and ground start.
The device, best suited for large and medium-sized VoIP applications is a compact device,
comprising a 19-inch, 1U chassis with optional dual AC or single DC power supplies. The
deployment architecture can include several devices in branch or departmental offices,
connected to local PBXs. Call routing is performed by the devices using internal routing or
SIP Proxy(s).
The device enables users to make cost-effective, long distance or international
telephone/fax calls between distributed company offices, using their existing
telephones/fax. These calls can be routed over the existing network using state-of-the-art
compression techniques, ensuring that voice traffic uses minimum bandwidth.
The device can also route calls over the network using SIP signaling protocol, enabling the
deployment of Voice over Packet solutions in environments where access is enabled to
PSTN subscribers by using a trunking device. This provides the ability to transmit voice
and telephony signals between a packet network and a TDM network.
Notes:
•The device is offered as a 1-module (up to 240 channels or 8 trunk spans) or 2-
module (for 480 channels or 16 trunk spans only) platform. The latter configuration
supports two TrunkPack modules, each having its own IP address. Configuration
instructions in this document relate to the device as a 1-module platform and must
be repeated for the second module as well.
•For channel capacity, refer to the device's specifications in 'Selected Technical
Specifications' on page 697.

User's Manual 20 Document #: LTRT-68822
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The figure below illustrates a typical device applications VoIP network:
1.1 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).