AudioCodes Mediant 800B User manual

User's Manual
Version 6.6
April 2013
Document # LTRT-10274
Mediant™ 800B Gateway & E-SBC
Enterprise Session Border Controller
Analog & Digital VoIP Media Gateway

Version 6.6 3 Mediant 800B GW & E-SBC
User's Manual Contents
Table of Contents
1Overview ............................................................................................................19
Getting Started with Initial Connectivity................................................................21
2Assigning the OAMP IP Address.....................................................................23
2.1 Web Interface.......................................................................................................23
2.2 CLI .......................................................................................................................25
Management Tools ..................................................................................................27
3Introduction .......................................................................................................29
4Web-Based Management..................................................................................31
4.1 Getting Acquainted with the Web Interface...........................................................31
4.1.1 Computer Requirements..........................................................................................31
4.1.2 Accessing the Web Interface...................................................................................32
4.1.3 Areas of the GUI......................................................................................................33
4.1.4 Toolbar Description..................................................................................................34
4.1.5 Navigation Tree .......................................................................................................35
4.1.5.1 Displaying Navigation Tree in Basic and Full View..................................36
4.1.5.2 Showing / Hiding the Navigation Pane.....................................................36
4.1.6 Working with Configuration Pages ..........................................................................37
4.1.6.1 Accessing Pages......................................................................................37
4.1.6.2 Viewing Parameters.................................................................................38
4.1.6.3 Modifying and Saving Parameters ...........................................................39
4.1.6.4 Working with Tables.................................................................................40
4.1.7 Searching for Configuration Parameters.................................................................43
4.1.8 Working with Scenarios...........................................................................................44
4.1.8.1 Creating a Scenario..................................................................................44
4.1.8.2 Accessing a Scenario...............................................................................46
4.1.8.3 Editing a Scenario....................................................................................47
4.1.8.4 Saving a Scenario to a PC.......................................................................48
4.1.8.5 Loading a Scenario to the Device ............................................................49
4.1.8.6 Deleting a Scenario..................................................................................49
4.1.8.7 Quitting Scenario Mode............................................................................50
4.1.9 Creating a Login Welcome Message.......................................................................50
4.1.10 Getting Help.............................................................................................................51
4.1.11 Logging Off the Web Interface.................................................................................52
4.2 Viewing the Home Page.......................................................................................53
4.2.1 Assigning a Port Name............................................................................................55
4.3 Configuring Web User Accounts...........................................................................56
4.3.1 Basic User Accounts Configuration.........................................................................57
4.3.2 Advanced User Accounts Configuration..................................................................59
4.4 Displaying Login Information upon Login..............................................................62
4.5 Configuring Web Security Settings.......................................................................63
4.6 Web Login Authentication using Smart Cards.......................................................63
4.7 Configuring Web and Telnet Access List..............................................................64
4.8 Configuring RADIUS Settings...............................................................................66

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5CLI-Based Management....................................................................................67
5.1 Enabling CLI using Telnet.....................................................................................67
5.2 Enabling CLI using SSH and RSA Public Key ......................................................67
5.3 Establishing a CLI Session...................................................................................69
5.4 CLI Commands ....................................................................................................70
5.4.1 Status Commands...................................................................................................70
5.4.2 Ping Command........................................................................................................73
5.4.3 Test Call (TC) Commands.......................................................................................73
5.4.4 Management Commands ........................................................................................74
5.4.5 Configuration Commands........................................................................................75
5.4.6 PSTN Commands....................................................................................................75
5.4.7 LDAP Commands....................................................................................................76
6SNMP-Based Management...............................................................................77
6.1 Configuring SNMP Community Strings.................................................................77
6.2 Configuring SNMP Trap Destinations...................................................................78
6.3 Configuring SNMP Trusted Managers..................................................................79
6.4 Configuring SNMP V3 Users................................................................................80
7EMS-Based Management..................................................................................83
8INI File-Based Management..............................................................................85
8.1 INI File Format......................................................................................................85
8.1.1 Configuring Individual ini File Parameters...............................................................85
8.1.2 Configuring Table ini File Parameters.....................................................................85
8.1.3 General ini File Formatting Rules............................................................................87
8.2 Loading an ini File ................................................................................................87
8.3 Modifying an ini File..............................................................................................88
8.4 Secured Encoded ini File......................................................................................88
General System Settings ........................................................................................89
9Configuring Certificates ...................................................................................91
9.1 Replacing the Device's Certificate ........................................................................91
9.2 Loading a Private Key ..........................................................................................92
9.3 Mutual TLS Authentication....................................................................................94
9.4 Self-Signed Certificates........................................................................................94
9.5 Configuring Certificate Revocation Checking (OCSP) ..........................................95
9.6 TLS Server Certificate Expiry Check ....................................................................96
9.7 Loading Certificate Chain for Trusted Root...........................................................96
10 Date and Time....................................................................................................97
10.1 Configuring Date and Time Manually....................................................................97
10.2 Automatic Date and Time through SNTP Server ..................................................97
General VoIP Configuration....................................................................................99
11 Network............................................................................................................101
11.1 Configuring Physical Ethernet Ports...................................................................101
11.2 Configuring Tx/Rx for Ethernet Port-Pair Groups................................................103

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11.3 Configuring IP Network Interfaces......................................................................104
11.3.1 Assigning NTP Services to Application Types ......................................................108
11.3.2 Multiple Interface Table Configuration Rules.........................................................108
11.3.3 Troubleshooting the Multiple Interface Table ........................................................109
11.3.4 Networking Configuration Examples .....................................................................110
11.3.4.1 One VoIP Interface for All Applications..................................................110
11.3.4.2 VoIP Interface per Application Type.......................................................110
11.3.4.3 VoIP Interfaces for Combined Application Types ..................................111
11.3.4.4 VoIP Interfaces with Multiple Default Gateways ....................................112
11.4 Configuring the IP Routing Table........................................................................113
11.4.1 Interface Column ...................................................................................................115
11.4.2 Routing Table Configuration Summary and Guidelines ........................................115
11.4.3 Troubleshooting the Routing Table .......................................................................116
11.5 Configuring Quality of Service ............................................................................116
11.6 Disabling ICMP Redirect Messages ...................................................................119
11.7 DNS ...................................................................................................................119
11.7.1 Configuring the Internal DNS Table.......................................................................119
11.7.2 Configuring the Internal SRV Table.......................................................................121
11.8 Configuring NFS Settings...................................................................................122
11.9 Network Address Translation Support ................................................................124
11.9.1 Device Located behind NAT..................................................................................124
11.9.1.1 Configuring a Static NAT IP Address for All Interfaces..........................125
11.9.1.2 Configuring NAT Translation per IP Interface........................................126
11.9.2 Remote UA behind NAT........................................................................................127
11.9.2.1 First Incoming Packet Mechanism .........................................................128
11.9.2.2 No-Op Packets.......................................................................................128
11.10Robust Receipt of Media Streams......................................................................128
11.11Multiple Routers Support....................................................................................129
12 Security............................................................................................................131
12.1 Configuring Firewall Settings..............................................................................131
12.2 Configuring General Security Settings................................................................135
12.3 Intrusion Detection System.................................................................................136
12.3.1 Enabling IDS..........................................................................................................136
12.3.2 Configuring IDS Policies........................................................................................137
12.3.3 Assigning IDS Policies...........................................................................................140
12.3.4 Viewing IDS Alarms...............................................................................................142
13 Media................................................................................................................145
13.1 Configuring Voice Settings .................................................................................145
13.1.1 Configuring Voice Gain (Volume) Control .............................................................145
13.1.2 Silence Suppression (Compression) .....................................................................145
13.1.3 Echo Cancellation..................................................................................................146
13.2 Fax and Modem Capabilities..............................................................................147
13.2.1 Fax/Modem Operating Modes...............................................................................148
13.2.2 Fax/Modem Transport Modes ...............................................................................149
13.2.2.1 T.38 Fax Relay Mode.............................................................................149
13.2.2.2 G.711 Fax / Modem Transport Mode.....................................................151
13.2.2.3 Fax Fallback...........................................................................................151
13.2.2.4 Fax/Modem Bypass Mode......................................................................152
13.2.2.5 Fax / Modem NSE Mode........................................................................153
13.2.2.6 Fax / Modem Transparent with Events Mode ........................................154
13.2.2.7 Fax / Modem Transparent Mode............................................................154
13.2.2.8 RFC 2833 ANS Report upon Fax/Modem Detection .............................155

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13.2.3 V.34 Fax Support...................................................................................................155
13.2.3.1 Bypass Mechanism for V.34 Fax Transmission.....................................156
13.2.3.2 Relay Mode for T.30 and V.34 Faxes ....................................................157
13.2.3.3 V.34 Fax Relay for SG3 Fax Machines..................................................157
13.2.4 V.150.1 Modem Relay...........................................................................................159
13.2.5 Simultaneous Negotiation of Fax (T.38) and Modem (V.150.1) Relay..................160
13.2.6 V.152 Support........................................................................................................160
13.2.7 Fax Transmission behind NAT ..............................................................................161
13.3 Configuring RTP/RTCP Settings.........................................................................161
13.3.1 Configuring the Dynamic Jitter Buffer....................................................................161
13.3.2 Comfort Noise Generation.....................................................................................162
13.3.3 Dual-Tone Multi-Frequency Signaling ...................................................................163
13.3.3.1 Configuring DTMF Transport Types.......................................................163
13.3.3.2 Configuring RFC 2833 Payload .............................................................164
13.3.4 Configuring RTP Base UDP Port...........................................................................165
13.4 Configuring IP Media Settings............................................................................166
13.4.1 Automatic Gain Control (AGC) ..............................................................................166
13.5 Configuring Various Codec Attributes.................................................................167
13.6 Configuring Analog Settings...............................................................................168
13.7 Configuring E&M Interfaces................................................................................168
13.8 Configuring Media Realms .................................................................................170
13.8.1 Configuring Quality of Experience per Media Realm ............................................172
13.8.2 Configuring Bandwidth Management per Media Realm........................................175
13.9 Configuring Server for Media Quality of Experience...........................................177
13.10Configuring Media Security.................................................................................178
14 Services ...........................................................................................................181
14.1 Routing Based on LDAP Active Directory Queries..............................................181
14.1.1 Configuring the LDAP Server ................................................................................181
14.1.2 Configuring the Device's LDAP Cache..................................................................182
14.1.3 Active Directory based Tel-to-IP Routing for Microsoft Lync.................................184
14.1.3.1 Querying the AD and Routing Priority....................................................184
14.1.3.2 Configuring AD-Based Routing Rules....................................................188
14.1.3.3 Querying the AD for Calling Name.........................................................190
14.2 Least Cost Routing.............................................................................................191
14.2.1 Overview................................................................................................................191
14.2.2 Configuring LCR ....................................................................................................193
14.2.2.1 Enabling the LCR Feature......................................................................193
14.2.2.2 Configuring Cost Groups........................................................................195
14.2.2.3 Configuring Time Bands for Cost Groups..............................................196
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..........................................................................203
16.3 Configuring IP Groups........................................................................................206
16.4 Configuring Proxy Sets Table.............................................................................215
17 SIP Definitions.................................................................................................221
17.1 Configuring SIP Parameters...............................................................................221
17.2 Configuring Account Table .................................................................................221
17.3 Configuring Proxy and Registration Parameters.................................................224

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17.3.1 SIP Message Authentication Example ..................................................................226
17.4 Configuring SIP Message Manipulation..............................................................228
17.5 Configuring SIP Message Policy Rules...............................................................233
17.6 Configuring RADIUS Accounting........................................................................236
18 Coders and Profiles ........................................................................................237
18.1 Configuring Coders.............................................................................................237
18.2 Configuring Coder Groups..................................................................................240
18.3 Configuring Tel Profile........................................................................................241
18.4 Configuring IP Profiles........................................................................................243
Gateway and IP-to-IP Application ........................................................................255
19 IP-to-IP Routing Overview ..............................................................................257
19.1 Theory of Operation............................................................................................258
19.1.1 Proxy Sets .............................................................................................................259
19.1.2 IP Groups...............................................................................................................259
19.1.3 Inbound and Outbound IP Routing Rules..............................................................261
19.1.4 Accounts................................................................................................................261
19.2 IP-to-IP Routing Configuration Example.............................................................261
19.2.1 Step 1: Enable the IP-to-IP Capabilities................................................................264
19.2.2 Step 2: Configure the Number of Media Channels................................................264
19.2.3 Step 3: Define a Trunk Group for the Local PSTN................................................264
19.2.4 Step 4: Configure the Proxy Sets ..........................................................................265
19.2.5 Step 5: Configure the IP Groups ...........................................................................267
19.2.6 Step 6: Configure the Account Table.....................................................................268
19.2.7 Step 7: Configure IP Profiles for Voice Coders .....................................................269
19.2.8 Step 8: Configure Inbound IP Routing...................................................................270
19.2.9 Step 9: Configure Outbound IP Routing................................................................272
19.2.10 Step 10: Configure Destination Phone Number Manipulation...............................273
20 Digital PSTN.....................................................................................................275
20.1 Configuring Trunk Settings.................................................................................275
20.2 TDM and Timing.................................................................................................278
20.2.1 Configuring TDM Bus Settings ..............................................................................278
20.2.2 Clock Settings........................................................................................................278
20.2.2.1 Recovering Clock from PSTN Line Interface .........................................278
20.2.2.2 Configuring Internal Clock as Clock Source...........................................279
20.3 Configuring CAS State Machines .......................................................................279
20.4 Configuring Digital Gateway Parameters............................................................282
20.5 Tunneling Applications .......................................................................................283
20.5.1 TDM Tunneling......................................................................................................283
20.5.1.1 DSP Pattern Detector.............................................................................286
20.5.2 QSIG Tunneling.....................................................................................................286
20.6 ISDN Non-Facility Associated Signaling (NFAS) ................................................287
20.6.1 NFAS Interface ID..................................................................................................288
20.6.2 Working with DMS-100 Switches ..........................................................................288
20.6.3 Creating an NFAS-Related Trunk Configuration...................................................289
20.6.4 Performing Manual D-Channel Switchover in NFAS Group..................................290
20.7 ISDN Overlap Dialing .........................................................................................290
20.7.1 Collecting ISDN Digits and Sending Complete Number in SIP.............................290
20.7.2 Interworking ISDN Overlap Dialing with SIP According to RFC 3578...................291

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20.8 Redirect Number and Calling Name (Display) ....................................................292
21 Trunk Group ....................................................................................................293
21.1 Configuring Trunk Group Table ..........................................................................293
21.2 Configuring Hunt Group Settings........................................................................295
22 Manipulation....................................................................................................301
22.1 Configuring General Settings..............................................................................301
22.2 Configuring Source/Destination Number Manipulation Rules..............................301
22.3 Manipulating Number Prefix ...............................................................................307
22.4 SIP Calling Name Manipulations ........................................................................308
22.5 Configuring Redirect Number IP to Tel...............................................................310
22.6 Manipulating Redirected and Diverted Numbers for Call Diversion.....................314
22.7 Mapping NPI/TON to SIP Phone-Context...........................................................315
22.8 Configuring Release Cause Mapping.................................................................317
22.8.1 Fixed Mapping of SIP Response to ISDN Release Reason..................................318
22.8.2 Fixed Mapping of ISDN Release Reason to SIP Response..................................319
22.8.3 Reason Header......................................................................................................321
22.8.4 Mapping PSTN Release Cause to SIP Response ................................................321
22.9 Numbering Plans and Type of Number...............................................................322
23 Routing.............................................................................................................323
23.1 Configuring General Routing Parameters...........................................................323
23.2 Configuring Outbound IP Routing Table.............................................................323
23.3 Configuring Inbound IP Routing Table................................................................332
23.4 IP Destinations Connectivity Feature..................................................................335
23.5 Alternative Routing for Tel-to-IP Calls.................................................................336
23.5.1 Alternative Routing Based on IP Connectivity.......................................................336
23.5.2 Alternative Routing Based on SIP Responses......................................................338
23.5.3 PSTN Fallback.......................................................................................................340
23.6 Alternative Routing for IP-to-Tel Calls.................................................................340
23.6.1 Alternative Routing to Trunk upon Q.931 Call Release Cause Code ...................340
23.6.2 Alternative Routing to an IP Destination upon a Busy Trunk ................................342
24 Configuring DTMF and Dialing.......................................................................345
24.1 Dialing Plan Features.........................................................................................346
24.1.1 Digit Mapping.........................................................................................................346
24.1.2 External Dial Plan File ...........................................................................................348
25 Configuring Supplementary Services ...........................................................349
25.1 Call Hold and Retrieve........................................................................................350
25.2 Call Pickup.........................................................................................................352
25.3 BRI Suspend and Resume.................................................................................352
25.4 Consultation Feature..........................................................................................352
25.5 Call Transfer.......................................................................................................353
25.5.1 Consultation Call Transfer.....................................................................................353
25.5.2 Consultation Transfer for QSIG Path Replacement ..............................................354
25.5.3 Blind Call Transfer .................................................................................................354
25.6 Call Forward.......................................................................................................355
25.6.1 Call Forward Reminder Ring .................................................................................356
25.6.2 Call Forward Reminder (Off-Hook) Special Dial Tone ..........................................356
25.6.3 Call Forward Reminder Dial Tone (Off-Hook) upon Spanish SIP Alert-Info..........357

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25.6.4 BRI Call Forwarding...............................................................................................357
25.7 Call Waiting........................................................................................................358
25.8 Message Waiting Indication................................................................................359
25.9 Caller ID.............................................................................................................360
25.9.1 Caller ID Detection / Generation on the Tel Side ..................................................360
25.9.2 Debugging a Caller ID Detection on FXO..............................................................361
25.9.3 Caller ID on the IP Side.........................................................................................362
25.10Three-Way Conferencing....................................................................................363
25.11Emergency E911 Phone Number Services.........................................................364
25.11.1 FXS Device Emulating PSAP using DID Loop-Start Lines....................................364
25.11.2 FXO Device Interworking SIP E911 Calls from Service Provider's IP Network to
PSAP DID Lines .................................................................................................................367
25.11.3 Pre-empting Existing Calls for E911 IP-to-Tel Calls..............................................370
25.11.4 Enhanced 9-1-1 Support for Lync Server 2010.....................................................371
25.11.4.1About E9-1-1 Services ...........................................................................371
25.11.4.2Microsoft Lync Server 2010 and E9-1-1.................................................372
25.11.4.3AudioCodes ELIN Gateway for Lync Server 2010 E9-1-1 Calls to PSTN
376
25.11.4.4Configuring AudioCodes ELIN Gateway................................................380
25.12Multilevel Precedence and Preemption...............................................................382
25.12.1 MLPP Preemption Events in SIP Reason Header ................................................384
25.12.2 Precedence Ring Tone..........................................................................................385
25.13Denial of Collect Calls ........................................................................................386
25.14Configuring ISDN Supplementary Services ........................................................386
25.15Advice of Charge Services for Euro ISDN ..........................................................388
25.16Configuring Voice Mail........................................................................................389
26 Analog Gateway ..............................................................................................391
26.1 Configuring Keypad Features.............................................................................391
26.2 Configuring Metering Tones ...............................................................................392
26.3 Configuring Charge Codes.................................................................................393
26.4 Configuring FXO Settings...................................................................................394
26.5 Configuring Authentication..................................................................................395
26.6 Configuring Automatic Dialing ............................................................................396
26.7 Configuring Caller Display Information................................................................398
26.8 Configuring Call Forward....................................................................................399
26.9 Configuring Caller ID Permissions......................................................................400
26.10Configuring Call Waiting.....................................................................................401
26.11Rejecting Anonymous Calls................................................................................402
26.12Configuring FXS Distinctive Ringing and Call Waiting Tones per
Source/Destination Number.........................................................................................402
26.13FXS/FXO Coefficient Types................................................................................404
26.14FXO Operating Modes........................................................................................405
26.14.1 FXO Operations for IP-to-Tel Calls........................................................................405
26.14.1.1One-Stage Dialing..................................................................................405
26.14.1.2Two-Stage Dialing..................................................................................406
26.14.1.3DID Wink ................................................................................................407
26.14.2 FXO Operations for Tel-to-IP Calls........................................................................407
26.14.2.1Automatic Dialing ...................................................................................407
26.14.2.2Collecting Digits Mode............................................................................408
26.14.2.3FXO Supplementary Services................................................................409

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26.14.3 Call Termination on FXO Devices .........................................................................409
26.14.3.1Calls Termination by PBX ......................................................................409
26.14.3.2Call Termination before Call Establishment...........................................410
26.14.3.3Ring Detection Timeout..........................................................................411
26.15Remote PBX Extension between FXO and FXS Devices ...................................411
26.15.1 Dialing from Remote Extension (Phone at FXS)...................................................412
26.15.2 Dialing from PBX Line or PSTN.............................................................................412
26.15.3 Message Waiting Indication for Remote Extensions.............................................412
26.15.4 Call Waiting for Remote Extensions......................................................................413
26.15.5 FXS Gateway Configuration..................................................................................414
26.15.6 FXO Gateway Configuration..................................................................................415
Session Border Controller Application................................................................417
27 SBC Overview..................................................................................................419
27.1 SIP Network Definitions......................................................................................420
27.2 SIP Dialog Initiation Process ..............................................................................420
27.3 User Registration and Internal Database............................................................422
27.3.1 Initial Registration Request Processing.................................................................423
27.3.2 Internal Database ..................................................................................................423
27.3.3 Routing using Internal Database ...........................................................................424
27.3.4 Registration Refreshes..........................................................................................424
27.3.5 Notification of Expired User Registration to SIP Proxy / Registrar........................424
27.3.6 Registration Restriction Control.............................................................................425
27.4 SBC Media Handling..........................................................................................425
27.4.1 Media Anchoring without Transcoding (Transparent) ...........................................427
27.4.2 Media Anchoring with Transcoding .......................................................................427
27.4.3 No Media Anchoring ..............................................................................................429
27.4.4 Transcoding Modes...............................................................................................431
27.4.5 Restricting Coders .................................................................................................432
27.4.6 Coder Transcoding ................................................................................................432
27.4.7 Prioritizing Coder List in SDP Offer.......................................................................433
27.4.8 SRTP-RTP and SRTP-SRTP Transcoding ...........................................................434
27.4.9 Multiple RTP Media Streams per Call Session .....................................................434
27.4.10 Interworking DTMF Methods .................................................................................435
27.5 Fax Negotiation and Transcoding.......................................................................435
27.6 Limiting SBC Call Duration.................................................................................436
27.7 SIP Authentication Server for SBC Users...........................................................436
27.8 Interworking SIP Signaling..................................................................................436
27.8.1 Interworking SIP 3xx Redirect Responses............................................................437
27.8.1.1 Resultant INVITE Traversing Device .....................................................437
27.8.1.2 Local Handling of SIP 3xx......................................................................438
27.8.2 Interworking SIP Diversion and History-Info Headers...........................................438
27.8.3 Interworking SIP REFER Messages......................................................................439
27.8.4 Interworking SIP PRACK Messages .....................................................................440
27.8.5 Interworking SIP Session Timer ............................................................................440
27.8.6 Interworking SIP Early Media ................................................................................440
27.8.7 Interworking SIP re-INVITE Messages..................................................................442
27.8.8 Interworking SIP UPDATE Messages ...................................................................442
27.8.9 Interworking SIP re-INVITE to UPDATE................................................................443
27.8.10 Interworking Delayed Offer....................................................................................443
27.8.11 Interworking Call Hold............................................................................................443
27.9 Call Survivability.................................................................................................444
27.9.1 Auto-Provisioning of Subscriber-Specific Information for BroadWorks Server for
Survivability.........................................................................................................................444

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27.9.2 BroadSoft's Shared Phone Line Call Appearance for SBC Survivability...............444
27.9.3 Call Survivability for Call Centers ..........................................................................446
27.9.4 Survivability Mode Display on Aastra IP Phones ..................................................448
27.10Call Forking........................................................................................................449
27.10.1 Initiating SIP Call Forking ......................................................................................449
27.10.2 SIP Forking Initiated by SIP Proxy Server.............................................................449
27.11Alternative Routing on Detection of Failed SIP Response..................................450
28 SBC Configuration..........................................................................................451
28.1 Configuring General Settings..............................................................................451
28.2 Configuring Admission Control...........................................................................452
28.3 Configuring Allowed Coder Groups ....................................................................454
28.4 Routing SBC.......................................................................................................456
28.4.1 Configuring Classification Rules............................................................................456
28.4.1.1 Classification Based on URI of Selected Header Example....................460
28.4.2 Configuring Condition Rules..................................................................................461
28.4.3 Configuring SBC IP-to-IP Routing.........................................................................462
28.4.4 Configuring Alternative Routing Reasons..............................................................469
28.5 SBC Manipulations.............................................................................................470
28.5.1 Configuring IP-to-IP Inbound Manipulations..........................................................472
28.5.2 Configuring IP-to-IP Outbound Manipulations.......................................................475
Cloud Resilience Package Application................................................................481
29 CRP Overview..................................................................................................483
30 CRP Configuration..........................................................................................485
30.1 Enabling the CRP Application.............................................................................485
30.2 Configuring Call Survivability Mode ....................................................................486
30.3 Pre-Configured IP Groups..................................................................................487
30.4 Pre-Configured IP-to-IP Routing Rules...............................................................488
Stand-Alone Survivability Application.................................................................489
31 SAS Overview..................................................................................................491
31.1 SAS Operating Modes........................................................................................491
31.1.1 SAS Outbound Mode.............................................................................................491
31.1.1.1 Normal State ..........................................................................................492
31.1.1.2 Emergency State....................................................................................492
31.1.2 SAS Redundant Mode...........................................................................................493
31.1.2.1 Normal State ..........................................................................................494
31.1.2.2 Emergency State....................................................................................494
31.1.2.3 Exiting Emergency and Returning to Normal State ...............................494
31.2 SAS Routing.......................................................................................................495
31.2.1 SAS Routing in Normal State ................................................................................495
31.2.2 SAS Routing in Emergency State..........................................................................497
32 SAS Configuration ..........................................................................................499
32.1 General SAS Configuration ................................................................................499
32.1.1 Enabling the SAS Application................................................................................499
32.1.2 Configuring Common SAS Parameters.................................................................499

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32.2 Configuring SAS Outbound Mode.......................................................................502
32.3 Configuring SAS Redundant Mode.....................................................................502
32.4 Configuring Gateway Application with SAS ........................................................503
32.4.1 Gateway with SAS Outbound Mode......................................................................503
32.4.2 Gateway with SAS Redundant Mode ....................................................................505
32.5 Advanced SAS Configuration.............................................................................506
32.5.1 Manipulating URI user part of Incoming REGISTER.............................................506
32.5.2 Manipulating Destination Number of Incoming INVITE.........................................507
32.5.3 SAS Routing Based on IP-to-IP Routing Table.....................................................510
32.5.4 Blocking Calls from Unregistered SAS Users........................................................515
32.5.5 Configuring SAS Emergency Calls........................................................................516
32.5.6 Adding SIP Record-Route Header to SIP INVITE.................................................516
32.5.7 Re-using TCP Connections...................................................................................517
32.5.8 Replacing Contact Header for SIP Messages.......................................................517
32.6 Viewing Registered SAS Users ..........................................................................518
33 SAS Cascading................................................................................................519
IP Media Capabilities.............................................................................................521
34 Transcoding using Third-Party Call Control.................................................523
34.1 Using RFC 4117.................................................................................................523
Maintenance...........................................................................................................525
35 Basic Maintenance..........................................................................................527
35.1 Resetting the Device ..........................................................................................527
35.2 Remotely Resetting Device using SIP NOTIFY ..................................................528
35.3 Locking and Unlocking the Device......................................................................529
35.4 Saving Configuration..........................................................................................530
36 Resetting Channels.........................................................................................531
36.1 Resetting Analog Channels................................................................................531
36.2 Restarting B-Channels .......................................................................................531
37 Software Upgrade............................................................................................533
37.1 Loading Auxiliary Files........................................................................................533
37.1.1 Call Progress Tones File .......................................................................................535
37.1.1.1 Distinctive Ringing..................................................................................537
37.1.2 CAS Files...............................................................................................................539
37.1.3 Dial Plan File..........................................................................................................539
37.1.3.1 Creating a Dial Plan File.........................................................................539
37.1.3.2 Dialing Plans for Digit Collection............................................................540
37.1.3.3 Dial Plan Prefix Tags for IP-to-Tel Routing ............................................542
37.1.3.4 Obtaining IP Destination from Dial Plan File..........................................544
37.1.3.5 Modifying ISDN-to-IP Calling Party Number..........................................544
37.1.4 User Information File .............................................................................................545
37.1.4.1 User Information File for PBX Extensions and "Global" Numbers.........545
37.1.4.2 User Information File for SBC User Database.......................................547
37.1.4.3 Enabling the User Info Table..................................................................548
37.2 Software License Key.........................................................................................549
37.2.1 Obtaining the Software License Key File...............................................................549
37.2.2 Installing the Software License Key.......................................................................550

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User's Manual Contents
37.2.2.1 Installing Software License Key using Web Interface............................550
37.3 Software Upgrade Wizard...................................................................................552
37.4 Backing Up and Loading Configuration File........................................................555
38 Automatic Update............................................................................................557
38.1 Configuring Automatic Update............................................................................557
38.2 Obtaining Networking Parameters using DHCP..................................................560
38.3 Automatic Configuration Methods.......................................................................560
38.3.1 DHCP-based Configuration Server .......................................................................560
38.3.2 Configuration using DHCP Option 67....................................................................561
38.3.3 TFTP Configuration using DHCP Option 66..........................................................561
38.3.4 HTTP-based Automatic Updates...........................................................................562
38.3.5 Configuration using FTP or NFS ...........................................................................562
38.3.6 Configuration using AudioCodes EMS..................................................................563
38.4 Loading Files Securely (Disabling TFTP)............................................................563
38.5 Remotely Triggering Auto Update using SIP NOTIFY.........................................564
39 Restoring Factory Defaults ............................................................................565
39.1 Restoring Defaults using CLI..............................................................................565
39.2 Restoring Defaults using Hardware Reset Button...............................................566
39.3 Restoring Defaults using an ini File ....................................................................566
40 USB Storage Capabilities ...............................................................................567
Status, Performance Monitoring and Reporting .................................................569
41 System Status .................................................................................................571
41.1 Viewing Device Information................................................................................571
41.2 Viewing Ethernet Port Information......................................................................572
42 Carrier-Grade Alarms......................................................................................573
42.1 Viewing Active Alarms........................................................................................573
42.2 Viewing Alarm History ........................................................................................574
43 Performance Monitoring.................................................................................575
43.1 Viewing MOS per Media Realm..........................................................................575
43.2 Viewing Trunk Utilization ....................................................................................576
43.3 Viewing Quality of Experience............................................................................577
43.4 Viewing Average Call Duration...........................................................................579
44 VoIP Status ......................................................................................................581
44.1 Viewing Trunks & Channels Status.....................................................................581
44.2 Viewing Analog Port Information.........................................................................582
44.3 Viewing NFAS Groups and D-Channel Status....................................................583
44.4 Viewing Active IP Interfaces...............................................................................584
44.5 Viewing Performance Statistics ..........................................................................584
44.6 Viewing Call Counters........................................................................................584
44.7 Viewing Registered Users ..................................................................................587
44.8 Viewing Registration Status................................................................................587
44.9 Viewing Call Routing Status ...............................................................................588

User's Manual 14 Document #: LTRT-10274
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44.10Viewing IP Connectivity......................................................................................589
45 Reporting Information to External Party .......................................................591
45.1 RTP Control Protocol Extended Reports (RTCP XR)..........................................591
45.2 Generating Call Detail Records..........................................................................594
45.2.1 Configuring CDR Reporting...................................................................................594
45.2.2 CDR Field Description...........................................................................................595
45.2.2.1 CDR Fields for SBC Signaling ...............................................................595
45.2.2.2 CDR Fields for SBC Media.....................................................................597
45.2.2.3 CDR Fields for Gateway/IP-to-IP Application.........................................598
45.2.2.4 Release Reasons in CDR ......................................................................602
45.2.3 Supported RADIUS Attributes ...............................................................................604
45.3 Querying Device Channel Resources using SIP OPTIONS................................608
Diagnostics ............................................................................................................609
46 Syslog and Debug Recordings ......................................................................611
46.1 Syslog Message Format.....................................................................................611
46.1.1 Event Representation in Syslog Messages...........................................................612
46.1.2 Identifying AudioCodes Syslog Messages using Facility Levels...........................614
46.1.3 SNMP Alarms in Syslog Messages.......................................................................614
46.2 Configuring Syslog Settings................................................................................615
46.3 Configuring Debug Recording ............................................................................616
46.4 Filtering Syslog Messages and Debug Recordings.............................................616
46.4.1 Filtering IP Network Traces ...................................................................................618
46.5 Viewing Syslog Messages..................................................................................619
46.6 Collecting Debug Recording Messages..............................................................620
47 Self-Testing......................................................................................................623
48 Analog Line Testing........................................................................................625
49 Testing SIP Signaling Calls............................................................................627
49.1 Configuring Test Call Endpoints .........................................................................627
49.1.1 Starting, Stopping and Restarting Test Calls.........................................................630
49.1.2 Viewing Test Call Statistics....................................................................................631
49.2 Configuring DTMF Tones for Test Calls..............................................................632
49.3 Configuring Basic Test Call ................................................................................633
49.4 Configuring SBC Test Call with External Proxy...................................................634
49.5 Test Call Configuration Examples.......................................................................636
Appendix ................................................................................................................639
50 Dialing Plan Notation for Routing and Manipulation....................................641
51 Configuration Parameters Reference............................................................643
51.1 Networking Parameters......................................................................................643
51.1.1 Ethernet Parameters..............................................................................................643
51.1.2 Multiple VoIP Network Interfaces and VLAN Parameters.....................................644
51.1.3 Routing Parameters...............................................................................................644
51.1.4 Quality of Service Parameters...............................................................................645
51.1.5 NAT and STUN Parameters..................................................................................646
51.1.6 NFS Parameters....................................................................................................647

Version 6.6 15 Mediant 800B GW & E-SBC
User's Manual Contents
51.1.7 DNS Parameters....................................................................................................647
51.1.8 DHCP Parameters.................................................................................................648
51.1.9 NTP and Daylight Saving Time Parameters..........................................................649
51.2 Management Parameters...................................................................................650
51.2.1 General Parameters ..............................................................................................650
51.2.2 Web Parameters....................................................................................................650
51.2.3 Telnet Parameters.................................................................................................653
51.2.4 SNMP Parameters.................................................................................................654
51.2.5 Serial Parameters..................................................................................................656
51.3 Debugging and Diagnostics Parameters.............................................................657
51.3.1 General Parameters ..............................................................................................657
51.3.2 SIP Test Call Parameters......................................................................................659
51.3.3 Syslog, CDR and Debug Parameters....................................................................660
51.3.4 Resource Allocation Indication Parameters...........................................................664
51.4 Security Parameters...........................................................................................665
51.4.1 General Parameters ..............................................................................................665
51.4.2 HTTPS Parameters ...............................................................................................665
51.4.3 SRTP Parameters..................................................................................................667
51.4.4 TLS Parameters.....................................................................................................670
51.4.5 SSH Parameters....................................................................................................672
51.4.6 OCSP Parameters.................................................................................................673
51.4.7 IDS Parameters .....................................................................................................673
51.5 RADIUS Parameters ..........................................................................................674
51.6 SIP Media Realm Parameters............................................................................677
51.7 Control Network Parameters ..............................................................................679
51.7.1 IP Group, Proxy, Registration and Authentication Parameters.............................679
51.7.2 Network Application Parameters ...........................................................................690
51.8 General SIP Parameters ....................................................................................692
51.9 Coders and Profile Parameters...........................................................................722
51.10Channel Parameters...........................................................................................726
51.10.1 Voice Parameters..................................................................................................726
51.10.2 Coder Parameters .................................................................................................728
51.10.3 DTMF Parameters.................................................................................................729
51.10.4 RTP, RTCP and T.38 Parameters.........................................................................730
51.11Gateway and IP-to-IP Parameters......................................................................735
51.11.1 Fax and Modem Parameters.................................................................................735
51.11.2 DTMF and Hook-Flash Parameters.......................................................................742
51.11.3 Digit Collection and Dial Plan Parameters.............................................................747
51.11.4 Voice Mail Parameters...........................................................................................749
51.11.5 Supplementary Services Parameters....................................................................754
51.11.5.1Caller ID Parameters..............................................................................754
51.11.5.2Call Waiting Parameters.........................................................................759
51.11.5.3Call Forwarding Parameters ..................................................................761
51.11.5.4Message Waiting Indication Parameters................................................762
51.11.5.5Call Hold Parameters.............................................................................764
51.11.5.6Call Transfer Parameters.......................................................................765
51.11.5.7Three-Way Conferencing Parameters ...................................................768
51.11.5.8MLPP and Emergency Call Parameters ................................................770
51.11.5.9Call Cut-Through Parameters ................................................................776
51.11.5.10 Automatic Dialing Parameters..........................................................777
51.11.5.11 Direct Inward Dialing Parameters.....................................................777
51.11.5.12 ISDN BRI Parameters ......................................................................779
51.11.6 PSTN Parameters..................................................................................................780
51.11.6.1General Parameters...............................................................................780
51.11.6.2TDM Bus and Clock Timing Parameters................................................785

User's Manual 16 Document #: LTRT-10274
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51.11.6.3CAS Parameters ....................................................................................787
51.11.6.4ISDN Parameters...................................................................................790
51.11.7 ISDN and CAS Interworking Parameters ..............................................................797
51.11.8 Answer and Disconnect Supervision Parameters .................................................813
51.11.9 Tone Parameters...................................................................................................818
51.11.9.1Telephony Tone Parameters..................................................................818
51.11.9.2Tone Detection Parameters ...................................................................825
51.11.9.3Metering Tone Parameters.....................................................................826
51.11.10 Telephone Keypad Sequence Parameters ......................................................827
51.11.11 General FXO Parameters.................................................................................831
51.11.12 E&M Parameters..............................................................................................833
51.11.13 Trunk Groups and Routing Parameters ...........................................................834
51.11.14 IP Connectivity Parameters..............................................................................841
51.11.15 Alternative Routing Parameters .......................................................................842
51.11.16 Number Manipulation Parameters....................................................................844
51.12Least Cost Routing Parameters..........................................................................854
51.13LDAP Parameters ..............................................................................................855
51.14SBC and CRP Parameters.................................................................................857
51.15Standalone Survivability Parameters..................................................................869
51.16IP Media Parameters..........................................................................................874
51.17Auxiliary and Configuration File Name Parameters ............................................878
51.18Automatic Update Parameters............................................................................879
52 DSP Templates................................................................................................881
53 Technical Specifications ................................................................................883

Version 6.6 17 Mediant 800B GW & E-SBC
User's Manual Notices
Notice
This document describes the AudioCodes Mediant 800B Gateway and E-SBC.
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 2013 AudioCodes Ltd. All rights reserved.
This document is subject to change without notice.
Date Published: April-29-2013
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 800B Gateway and E-SBC.

User's Manual 18 Document #: LTRT-10274
Mediant 800B GW & E-SBC
Related Documentation
Manual Name
SIP CPE Release Notes
Mediant 800B Gateway and E-SBC Hardware Installation Manual
SBC Design Guide
DConvert User's Guide
CPTWizard User's Guide
AcBootP Utility User's Guide
SNMP User's Guide
SIP Message Manipulation Syntax 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.
Notes:
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
([email protected]).
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.

Version 6.6 19 Mediant 800B GW & E-SBC
User's Manual 1. Overview
1 Overview
AudioCodes' Mediant 800B Gateway and E-SBC (hereafter referred to as device) is a
member of AudioCodes family of Enterprise Session Border Controllers (E-SBC), enabling
connectivity and security between small medium businesses (SMB) and service providers'
VoIP networks. The device provides SBC functionality as well as voice-over-IP (VoIP)
media gateway functionality. The device offers enhanced dialing plans and voice routing
capabilities along with SIP-to-SIP mediation, allowing enterprises to implement SIP
Trunking services (IP-to-IP call routing) and IP-based Unified Communications, as well as
flexible PSTN and legacy PBX connectivity.
The device is designed as a secured VoIP platform. Enhanced media gateway security
features include, for example, SRTP for media, TLS for SIP control, and IPSec for
management. A fully featured enterprise-class SBC provides a secured voice network
deployment based on a Back-to-Back User Agent (B2BUA) implementation. The SBC
functionality provides perimeter defense for protecting the enterprise from malicious VoIP
attacks; mediation for allowing the connection of any PBX and/or IP PBX to any service
provider; and service assurance for service quality and manageability.
The device offers call "survivability" solutions using its Stand Alone Survivability (SAS) or
Cloud Resilience Package applications, ensuring service continuity to enterprises served
by a centralized SIP-based IP-Centrex server or branch offices of distributed enterprises.
Call survivability enables internal office communication between SIP clients in the case of
disconnection from the centralized SIP IP-Centrex server or IP-PBX.
The device provides an integrated Open Solution Network (OSN) server platform that can
host a variety of third-party applications such as IP PBX, call center, and conferencing
applications.
The device supports various telephony and Ethernet interfaces, available according to
model (refer to the Release Notes):
Up to 12 Foreign Exchange Station (FXS) port interfaces. This is used for connecting
legacy telephones, fax machines, and modems to the IP network. The FXS interfaces
also support an analog Lifeline, enabling an FXS port to connect directly to the PSTN
upon power and/or network failure.
Up to 8 Foreign Exchange Office (FXO) port interfaces. This is used for connecting
analog lines (PBX or PSTN) to the IP network. When deployed with a combination of
FXO and FXS interfaces, the device can be used as a PBX for small office home
office (SOHO) users, and businesses not equipped with a PBX.
Up to 6 RJ-45 Ear and Mouth (E&M) port interfaces. This enables the device to be
integrated into various applications requiring E&M signaling interfaces. For example, it
can operate in a radio-over-IP (RoIP) gateway solution for two-way radio systems. In
such a solution, the device interfaces between the analog radio station (servicing the
land mobile radios) and an IP-based push-to-talk (PTT) server.
Up to 2 E1/T1 port interface over single copper wire pair, supporting Transparent,
CAS and ISDN protocols. The device supports various ISDN PRI protocols such as
EuroISDN, North American NI2, Lucent™ 4/5ESS, Nortel™ DMS-100 and others. It
also supports different variants of CAS protocols for E1 and T1 spans, including MFC
R2, E&M immediate start, E&M delay dial / start, loop start and ground start.
Up to 8 Basic Rate Interface (BRI) ports (supporting up to 16 voice channels). This is
used for connecting ISDN terminal equipment such as ISDN telephones. It supports
various ISDN BRI protocols such as ETSI 5ESS and QSIG over BRI.
Up to 12 Ethernet interfaces (up to 4 Gigabit Ethernet ports and up to 8 Fast Ethernet
ports). These ports operate in port-pair redundancy, providing up to 6 port-pair groups.

User's Manual 20 Document #: LTRT-10274
Mediant 800B GW & E-SBC
The device allows full management through its HTTP/S-based embedded Web server. This
user-friendly Web interface allows remote configuration using any standard Web browser
(such as Microsoft™ Internet Explorer™).