AudioCodes Mediant 500 E-SBC User manual

User's Manual
Version 6.8
September 2014
Document # LTRT-10427
Mediant™ 500 E-SBC
Enterprise Session Border Controller
Digital VoIP Media Gateway

Version 6.8 3 Mediant 500 E-SBC
User's Manual Contents
Table of Contents
1Overview ............................................................................................................21
Getting Started with Initial Connectivity................................................................23
2Introduction .......................................................................................................25
3Default OAMP IP Address.................................................................................27
4Configuring VoIP LAN Interface for OAMP .....................................................29
4.1 Web Interface.........................................................................................................29
4.2 CLI..........................................................................................................................31
Management Tools..................................................................................................33
5Introduction .......................................................................................................35
6Web-Based Management..................................................................................37
6.1 Getting Acquainted with the Web Interface............................................................37
6.1.1 Computer Requirements..........................................................................................37
6.1.2 Accessing the Web Interface...................................................................................38
6.1.3 Areas of the GUI......................................................................................................39
6.1.4 Toolbar Description..................................................................................................40
6.1.5 Navigation Tree .......................................................................................................41
6.1.5.1 Displaying Navigation Tree in Basic and Full View..................................41
6.1.5.2 Showing / Hiding the Navigation Pane.....................................................42
6.1.6 Working with Configuration Pages ..........................................................................43
6.1.6.1 Accessing Pages......................................................................................43
6.1.6.2 Viewing Parameters.................................................................................43
6.1.6.3 Modifying and Saving Parameters...........................................................45
6.1.6.4 Working with Tables.................................................................................46
6.1.7 Searching for Configuration Parameters.................................................................47
6.1.8 Creating a Login Welcome Message.......................................................................49
6.1.9 Getting Help.............................................................................................................50
6.1.10 Logging Off the Web Interface.................................................................................51
6.2 Viewing the Home Page.........................................................................................51
6.2.1 Assigning a Port Name............................................................................................53
6.3 Configuring Web User Accounts............................................................................54
6.3.1 Basic User Accounts Configuration.........................................................................55
6.3.2 Advanced User Accounts Configuration..................................................................57
6.4 Displaying Login Information upon Login...............................................................60
6.5 Configuring Web Security Settings ........................................................................61
6.6 Web Login Authentication using Smart Cards .......................................................61
6.7 Configuring Web and Telnet Access List...............................................................62
7CLI-Based Management....................................................................................65
7.1 Getting Familiar with CLI........................................................................................65
7.1.1 Understanding Configuration Modes.......................................................................65
7.1.2 Using CLI Shortcuts.................................................................................................66
7.1.3 Common CLI Commands........................................................................................67
7.1.4 Configuring Tables in CLI........................................................................................68
7.1.5 Understanding CLI Error Messages........................................................................69

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7.2 Enabling CLI...........................................................................................................69
7.2.1 Enabling Telnet for CLI............................................................................................69
7.2.2 Enabling SSH with RSA Public Key for CLI.............................................................70
7.3 Establishing a CLI Session ....................................................................................72
7.4 Configuring Maximum Telnet/SSH Sessions.........................................................73
7.5 Viewing and Terminating Current CLI Sessions ....................................................73
7.6 Configuring Displayed Output Lines in CLI Terminal Window ...............................74
8SNMP-Based Management...............................................................................75
8.1 Enabling SNMP and Configuring SNMP Community Strings.................................75
8.2 Configuring SNMP Trap Destinations....................................................................76
8.3 Configuring SNMP Trusted Managers...................................................................78
8.4 Configuring SNMP V3 Users..................................................................................79
9INI File-Based Management..............................................................................81
9.1 INI File Format .......................................................................................................81
9.1.1 Configuring Individual ini File Parameters...............................................................81
9.1.2 Configuring Table ini File Parameters.....................................................................81
9.1.3 General ini File Formatting Rules............................................................................83
9.2 Configuring an ini File ............................................................................................83
9.3 Loading an ini File to the Device............................................................................84
9.4 Secured Encoded ini File.......................................................................................84
9.5 Configuring Password Display in ini File................................................................85
9.6 INI Viewer and Editor Utility ...................................................................................86
General System Settings ........................................................................................87
10 Configuring Certificates ...................................................................................89
10.1.1 Configuring TLS Certificate Contexts......................................................................89
10.1.2 Assigning CSR-based Certificates to TLS Contexts ...............................................93
10.1.3 Assigning Externally Created Private Keys to TLS Contexts..................................94
10.1.4 Generating Private Keys for TLS Contexts..............................................................95
10.1.5 Creating Self-Signed Certificates for TLS Contexts................................................96
10.1.6 Importing Certificates and Certificate Chain into Trusted Certificate Store.............97
10.1.7 Configuring Mutual TLS Authentication...................................................................98
10.1.7.1 TLS for SIP Clients...................................................................................98
10.1.7.2 TLS for Remote Device Management......................................................99
10.1.8 Configuring TLS Server Certificate Expiry Check .................................................100
11 Date and Time..................................................................................................101
11.1 Configuring Date and Time Manually...................................................................101
11.2 Configuring Automatic Date and Time using SNTP.............................................101
11.3 Configuring Daylight Saving Time........................................................................103
General VoIP Configuration..................................................................................105
12 Network............................................................................................................107
12.1 Configuring Physical Ethernet Ports ....................................................................107
12.2 Configuring Ethernet Port Groups........................................................................109
12.3 Configuring Underlying Ethernet Devices............................................................111

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12.4 Configuring IP Network Interfaces .......................................................................113
12.4.1 Assigning NTP Services to Application Types ......................................................116
12.4.2 Multiple Interface Table Configuration Summary and Guidelines.........................116
12.4.3 Networking Configuration Examples .....................................................................117
12.4.3.1 One VoIP Interface for All Applications................................................. 117
12.4.3.2 VoIP Interface per Application Type...................................................... 118
12.4.3.3 VoIP Interfaces for Combined Application Types ................................. 118
12.4.3.4 VoIP Interfaces with Multiple Default Gateways................................... 120
12.5 Configuring Static IP Routes................................................................................120
12.5.1 Configuration Example of Static IP Routes ...........................................................122
12.5.2 Troubleshooting the Routing Table .......................................................................123
12.6 Configuring Quality of Service..............................................................................124
12.7 Configuring ICMP Messages ...............................................................................126
12.8 DNS......................................................................................................................126
12.8.1 Configuring the Internal DNS Table.......................................................................126
12.8.2 Configuring the Internal SRV Table.......................................................................128
12.9 Configuring NFS Settings.....................................................................................130
12.10Network Address Translation Support .................................................................132
12.10.1Device Located behind NAT..................................................................................132
12.10.1.1Configuring a Static NAT IP Address for All Interfaces......................... 133
12.10.1.2Configuring NAT Translation per IP Interface....................................... 134
12.10.2Remote UA behind NAT........................................................................................135
12.10.2.1SIP Signaling Messages ....................................................................... 135
12.10.2.2Media (RTP/RTCP/T.38)....................................................................... 136
12.11Robust Receipt of Media Streams by Media Latching.........................................138
12.12Multiple Routers Support......................................................................................140
13 Security............................................................................................................141
13.1 Configuring Firewall Settings ...............................................................................141
13.2 Configuring General Security Settings.................................................................145
13.3 Intrusion Detection System..................................................................................146
13.3.1 Enabling IDS..........................................................................................................147
13.3.2 Configuring IDS Policies........................................................................................147
13.3.3 Assigning IDS Policies...........................................................................................151
13.3.4 Viewing IDS Alarms...............................................................................................152
14 Media................................................................................................................155
14.1 Configuring Voice Settings...................................................................................155
14.1.1 Configuring Voice Gain (Volume) Control .............................................................155
14.1.2 Silence Suppression (Compression).....................................................................155
14.1.3 Echo Cancellation..................................................................................................156
14.2 Fax and Modem Capabilities................................................................................157
14.2.1 Fax/Modem Operating Modes...............................................................................159
14.2.2 Fax/Modem Transport Modes ...............................................................................159
14.2.2.1 T.38 Fax Relay Mode............................................................................ 159
14.2.2.2 G.711 Fax / Modem Transport Mode.................................................... 162
14.2.2.3 Fax Fallback.......................................................................................... 162
14.2.2.4 Fax/Modem Bypass Mode .................................................................... 163
14.2.2.5 Fax / Modem NSE Mode....................................................................... 164
14.2.2.6 Fax / Modem Transparent with Events Mode....................................... 165
14.2.2.7 Fax / Modem Transparent Mode........................................................... 165
14.2.2.8 RFC 2833 ANS Report upon Fax/Modem Detection............................ 166
14.2.3 V.34 Fax Support...................................................................................................166
14.2.3.1 Bypass Mechanism for V.34 Fax Transmission.................................... 167

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14.2.3.2 Relay Mode for T.30 and V.34 Faxes................................................... 168
14.2.3.3 V.34 Fax Relay for SG3 Fax Machines................................................. 168
14.2.4 V.150.1 Modem Relay...........................................................................................169
14.2.5 Simultaneous Negotiation of Fax (T.38) and Modem (V.150.1) Relay..................170
14.2.6 V.152 Support........................................................................................................171
14.2.7 Fax Transmission behind NAT..............................................................................171
14.3 Configuring RTP/RTCP Settings..........................................................................172
14.3.1 Configuring the Dynamic Jitter Buffer....................................................................172
14.3.2 Comfort Noise Generation.....................................................................................173
14.3.3 Dual-Tone Multi-Frequency Signaling...................................................................174
14.3.3.1 Configuring DTMF Transport Types...................................................... 174
14.3.3.2 Configuring RFC 2833 Payload ............................................................ 175
14.3.4 Configuring RTP Base UDP Port...........................................................................176
14.4 Configuring IP Media Settings..............................................................................177
14.4.1 Automatic Gain Control (AGC)..............................................................................177
14.5 Configuring Various Codec Attributes..................................................................178
14.6 Configuring Media (SRTP) Security.....................................................................178
15 Services ...........................................................................................................181
15.1 DHCP Server Functionality..................................................................................181
15.1.1 Configuring the DHCP Server ...............................................................................181
15.1.2 Configuring the Vendor Class Identifier.................................................................185
15.1.3 Configuring Additional DHCP Options...................................................................186
15.1.4 Configuring Static IP Addresses for DHCP Clients ...............................................188
15.1.5 Viewing and Deleting DHCP Clients......................................................................189
15.2 SIP-based Media Recording................................................................................191
15.2.1 Enabling SIP-based Media Recording...................................................................194
15.2.2 Configuring SIP Recording Routing Rules............................................................194
15.2.3 Configuring SIP User Part for SRS........................................................................196
15.2.4 Interworking SIP-based Media Recording with Third-Party Vendors....................196
15.2.4.1 Genesys................................................................................................ 196
15.2.4.2 Avaya UCID........................................................................................... 196
15.3 RADIUS Authentication........................................................................................197
15.3.1 Setting Up a Third-Party RADIUS Server..............................................................198
15.3.2 Configuring RADIUS Authentication......................................................................199
15.3.3 Securing RADIUS Communication........................................................................200
15.3.4 Authenticating RADIUS in the URL.......................................................................200
15.4 LDAP-based Management and SIP Services......................................................201
15.4.1 Enabling the LDAP Service...................................................................................202
15.4.2 Enabling LDAP-based Web/CLI User Login Authentication and Authorization.....202
15.4.3 Configuring LDAP Servers.....................................................................................203
15.4.4 Configuring LDAP DNs (Base Paths) per LDAP Server........................................206
15.4.5 Configuring the LDAP Search Filter Attribute........................................................207
15.4.6 Configuring Access Level per Management Groups Attributes ............................208
15.4.7 Configuring LDAP Search Methods.......................................................................210
15.4.8 Configuring the Device's LDAP Cache..................................................................210
15.4.9 Configuring Local Database for Management User Authentication......................212
15.4.10LDAP-based Login Authentication Example..........................................................214
15.4.11Active Directory-based Routing for Microsoft Lync ...............................................218
15.4.11.1Querying the AD and Routing Priority................................................... 218
15.4.11.2Configuring AD-Based Routing Rules................................................... 221
15.4.11.3Querying the AD for Calling Name........................................................ 223
15.5 Least Cost Routing...............................................................................................224
15.5.1 Overview................................................................................................................224
15.5.2 Configuring LCR....................................................................................................226
15.5.2.1 Enabling the LCR Feature..................................................................... 226

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15.5.2.2 Configuring Cost Groups....................................................................... 228
15.5.2.3 Configuring Time Bands for Cost Groups............................................. 229
15.5.2.4 Assigning Cost Groups to Routing Rules.............................................. 230
15.6 Configuring Call Setup Rules...............................................................................231
15.6.1 Call Setup Rule Examples.....................................................................................235
16 Quality of Experience......................................................................................237
16.1 Reporting Voice Quality of Experience to SEM....................................................237
16.1.1 Configuring the SEM Server..................................................................................237
16.1.2 Configuring Clock Synchronization between Device and SEM.............................238
16.1.3 Enabling RTCP XR Reporting to SEM ..................................................................238
16.2 Configuring Quality of Experience Profiles...........................................................238
16.3 Configuring Bandwidth Profiles............................................................................242
16.4 Configuring Media Enhancement Profiles............................................................244
17 Control Network ..............................................................................................249
17.1 Configuring Media Realms...................................................................................249
17.2 Configuring Remote Media Subnets....................................................................251
17.3 Configuring SRDs ................................................................................................254
17.4 Configuring SIP Interfaces...................................................................................256
17.5 Configuring IP Groups..........................................................................................260
17.6 Configuring Proxy Sets ........................................................................................270
18 SIP Definitions.................................................................................................277
18.1 Configuring SIP Parameters ................................................................................277
18.2 Configuring Registration Accounts.......................................................................277
18.2.1 Regular Registration Mode....................................................................................280
18.2.2 Single Registration for Multiple Phone Numbers using GIN..................................280
18.3 Configuring Proxy and Registration Parameters..................................................281
18.3.1 SIP Message Authentication Example ..................................................................282
18.4 Configuring SIP Message Manipulation...............................................................284
18.5 Configuring SIP Message Policy Rules................................................................289
19 Coders and Profiles ........................................................................................293
19.1 Configuring Default Coders..................................................................................293
19.2 Configuring Coder Groups...................................................................................296
19.3 Configuring Tel Profile..........................................................................................297
19.4 Configuring IP Profiles .........................................................................................300
Gateway Application .............................................................................................325
20 Introduction .....................................................................................................327
21 Digital PSTN.....................................................................................................329
21.1 Configuring Trunk Settings...................................................................................329
21.2 TDM and Timing...................................................................................................331
21.2.1 Configuring TDM Bus Settings..............................................................................331
21.2.2 Clock Settings........................................................................................................332
21.2.2.1 Recovering Clock from PSTN Line Interface........................................ 332
21.2.2.2 Configuring Internal Clock as Clock Source ......................................... 333

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21.3 Configuring CAS State Machines.........................................................................333
21.4 Configuring Digital Gateway Parameters.............................................................336
21.5 Tunneling Applications.........................................................................................337
21.5.1 TDM Tunneling......................................................................................................337
21.5.1.1 DSP Pattern Detector............................................................................ 340
21.5.2 QSIG Tunneling.....................................................................................................340
21.6 ISDN Non-Facility Associated Signaling (NFAS).................................................341
21.6.1 NFAS Interface ID..................................................................................................342
21.6.2 Working with DMS-100 Switches ..........................................................................342
21.6.3 Creating an NFAS-Related Trunk Configuration...................................................343
21.6.4 Performing Manual D-Channel Switchover in NFAS Group..................................344
21.7 ISDN Overlap Dialing...........................................................................................344
21.7.1 Collecting ISDN Digits and Sending Complete Number in SIP.............................344
21.7.2 Interworking ISDN Overlap Dialing with SIP According to RFC 3578...................345
21.8 Redirect Number and Calling Name (Display).....................................................346
22 Trunk Group ....................................................................................................347
22.1 Configuring Trunk Group Table............................................................................347
22.2 Configuring Trunk Group Settings........................................................................349
23 Manipulation....................................................................................................355
23.1 Configuring General Settings...............................................................................355
23.2 Configuring Source/Destination Number Manipulation Rules..............................355
23.3 Manipulating Number Prefix.................................................................................361
23.4 SIP Calling Name Manipulations..........................................................................362
23.5 Configuring Redirect Number IP to Tel................................................................365
23.6 Manipulating Redirected and Diverted Numbers for Call Diversion.....................369
23.7 Mapping NPI/TON to SIP Phone-Context............................................................370
23.8 Configuring Release Cause Mapping ..................................................................371
23.8.1 Fixed Mapping of SIP Response to ISDN Release Reason..................................373
23.8.2 Fixed Mapping of ISDN Release Reason to SIP Response..................................374
23.8.3 Reason Header......................................................................................................377
23.9 Numbering Plans and Type of Number................................................................378
24 Routing.............................................................................................................379
24.1 Configuring General Routing Parameters............................................................379
24.2 Configuring Outbound IP Routing Table..............................................................379
24.3 Configuring Inbound IP Routing Table.................................................................388
24.4 IP Destinations Connectivity Feature...................................................................392
24.5 Alternative Routing for Tel-to-IP Calls..................................................................394
24.5.1 Alternative Routing Based on IP Connectivity.......................................................394
24.5.2 Alternative Routing Based on SIP Responses......................................................395
24.5.3 Alternative Routing upon SIP 3xx with Multiple Contacts......................................397
24.5.4 PSTN Fallback.......................................................................................................398
24.6 Alternative Routing for IP-to-Tel Calls..................................................................399
24.6.1 Alternative Routing to Trunk upon Q.931 Call Release Cause Code ...................399
24.6.2 Alternative Routing to an IP Destination upon a Busy Trunk ................................400
24.6.3 Alternative Routing upon ISDN Disconnect...........................................................402
25 Configuring DTMF and Dialing.......................................................................403
25.1 Dialing Plan Features...........................................................................................403
25.1.1 Digit Mapping.........................................................................................................403

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25.1.2 External Dial Plan File ...........................................................................................405
26 Configuring Supplementary Services ...........................................................407
26.1 Call Hold and Retrieve.........................................................................................408
26.2 Call Transfer.........................................................................................................408
26.2.1 Consultation Call Transfer.....................................................................................408
26.2.2 Consultation Transfer for QSIG Path Replacement..............................................409
26.2.3 Blind Call Transfer.................................................................................................409
26.3 Call Forward.........................................................................................................410
26.4 Message Waiting Indication.................................................................................410
26.5 Emergency E911 Phone Number Services..........................................................411
26.5.1 Pre-empting Existing Calls for E911 IP-to-Tel Calls..............................................412
26.5.2 Enhanced 9-1-1 Support for Lync Server 2010.....................................................412
26.5.2.1 About E9-1-1 Services .......................................................................... 413
26.5.2.2 Microsoft Lync Server 2010 and E9-1-1................................................ 414
26.5.2.3 AudioCodes ELIN Gateway for Lync Server 2010 E9-1-1 Calls to PSTN
417
26.5.2.4 Configuring AudioCodes ELIN Gateway............................................... 422
26.6 Multilevel Precedence and Preemption................................................................424
26.6.1 MLPP Preemption Events in SIP Reason Header ................................................427
26.6.2 Precedence Ring Tone..........................................................................................428
26.7 Detecting Collect Calls.........................................................................................429
26.8 Advice of Charge Services for Euro ISDN ...........................................................429
26.9 Configuring Charge Codes...................................................................................430
26.10Configuring Voice Mail.........................................................................................432
Session Border Controller Application................................................................433
27 SBC Overview..................................................................................................435
27.1 SIP Network Definitions .......................................................................................436
27.2 SIP Dialog Initiation Process................................................................................436
27.3 User Registration .................................................................................................438
27.3.1 Initial Registration Request Processing.................................................................439
27.3.2 SBC Users Registration Database........................................................................439
27.3.3 Routing using Users Registration Database..........................................................440
27.3.4 Registration Refreshes..........................................................................................440
27.3.5 Registration Restriction Control.............................................................................441
27.4 SBC Media Handling............................................................................................441
27.4.1 Media Anchoring without Transcoding (Transparent) ...........................................442
27.4.2 No Media Anchoring..............................................................................................443
27.4.3 Restricting Coders.................................................................................................445
27.4.4 Prioritizing Coder List in SDP Offer.......................................................................446
27.4.5 SRTP-RTP and SRTP-SRTP Transcoding ...........................................................446
27.4.6 Multiple RTP Media Streams per Call Session .....................................................447
27.5 Limiting SBC Call Duration...................................................................................447
27.6 SBC Authentication..............................................................................................447
27.6.1 SIP Authentication Server Functionality................................................................447
27.6.2 User Authentication based on RADIUS.................................................................448
27.7 Interworking SIP Signaling...................................................................................448
27.7.1 Interworking SIP 3xx Redirect Responses............................................................449
27.7.1.1 Resultant INVITE Traversing Device .................................................... 449

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27.7.1.2 Local Handling of SIP 3xx..................................................................... 450
27.7.2 Interworking SIP Diversion and History-Info Headers...........................................451
27.7.3 Interworking SIP REFER Messages......................................................................451
27.7.4 Interworking SIP PRACK Messages .....................................................................452
27.7.5 Interworking SIP Session Timer............................................................................452
27.7.6 Interworking SIP Early Media ................................................................................453
27.7.7 Interworking SIP re-INVITE Messages..................................................................455
27.7.8 Interworking SIP UPDATE Messages...................................................................455
27.7.9 Interworking SIP re-INVITE to UPDATE................................................................455
27.7.10Interworking Call Hold............................................................................................455
27.8 Call Survivability...................................................................................................456
27.8.1 Auto-Provisioning of Subscriber-Specific Information for BroadWorks Server for
Survivability.........................................................................................................................456
27.8.2 BroadSoft's Shared Phone Line Call Appearance for SBC Survivability...............456
27.8.3 Call Survivability for Call Centers..........................................................................458
27.8.4 Survivability Mode Display on Aastra IP Phones ..................................................460
27.9 Call Forking..........................................................................................................461
27.9.1 Initiating SIP Call Forking ......................................................................................461
27.9.2 SIP Forking Initiated by SIP Proxy Server.............................................................461
27.9.3 Call Forking-based IP-to-IP Routing Rules............................................................462
27.10Alternative Routing on Detection of Failed SIP Response...................................462
28 SBC Configuration..........................................................................................463
28.1 Configuring General Settings...............................................................................463
28.1.1 Interworking Dialog Information in SIP NOTIFY Messages ..................................463
28.2 Configuring Admission Control.............................................................................465
28.3 Configuring Allowed Audio Coder Groups ...........................................................468
28.4 Configuring Allowed Video Coder Groups ...........................................................470
28.5 Routing SBC ........................................................................................................470
28.5.1 Configuring Classification Rules............................................................................470
28.5.1.1 Classification Based on URI of Selected Header Example................... 475
28.5.2 Configuring Message Condition Rules..................................................................476
28.5.3 Configuring SBC IP-to-IP Routing .........................................................................477
28.5.4 Configuring SIP Response Codes for Alternative Routing Reasons.....................486
28.6 SBC Manipulations...............................................................................................487
28.6.1 Configuring IP-to-IP Inbound Manipulations..........................................................490
28.6.2 Configuring IP-to-IP Outbound Manipulations.......................................................493
Cloud Resilience Package....................................................................................499
29 CRP Overview..................................................................................................501
30 CRP Configuration..........................................................................................503
30.1 Enabling the CRP Application..............................................................................503
30.2 Configuring Call Survivability Mode .....................................................................504
30.3 Pre-Configured IP Groups....................................................................................505
30.4 Pre-Configured IP-to-IP Routing Rules................................................................506
30.4.1 Normal Mode.........................................................................................................506
30.4.2 Emergency Mode...................................................................................................507
30.4.3 Auto Answer to Registrations................................................................................507
30.5 Configuring PSTN Fallback..................................................................................508

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High-Availability System.......................................................................................509
31 HA Overview....................................................................................................511
31.1 Connectivity and Synchronization between Devices............................................511
31.2 Device Switchover upon Failure...........................................................................512
31.3 HA Status on the Home Page..............................................................................513
32 HA Configuration.............................................................................................515
32.1 Initial HA Configuration ........................................................................................515
32.1.1 Network Topology Types and Rx/Tx Ethernet Port Group Settings......................515
32.1.2 Configuring the HA Devices ..................................................................................516
32.1.2.1 Step 1: Configure the First Device........................................................ 517
32.1.2.2 Step 2: Configure the Second Device................................................... 519
32.1.2.3 Step 3: Initialize HA on the Devices...................................................... 520
32.2 Configuration while HA is Operational .................................................................520
32.3 Configuring Firewall Allowed Rules......................................................................521
33 HA Maintenance ..............................................................................................523
33.1 Maintenance of Redundant Device......................................................................523
33.2 Replacing a Failed Device ...................................................................................523
33.3 Forcing a Switchover............................................................................................523
33.4 Software Upgrade................................................................................................523
Maintenance...........................................................................................................525
34 Basic Maintenance..........................................................................................527
34.1 Resetting the Device............................................................................................527
34.2 Remotely Resetting Device using SIP NOTIFY...................................................528
34.3 Locking and Unlocking the Device.......................................................................529
34.4 Saving Configuration............................................................................................530
35 High Availability Maintenance........................................................................531
36 Disconnecting Active Calls ............................................................................533
37 Resetting Channels.........................................................................................535
37.1 Restarting a B-Channel........................................................................................535
38 Software Upgrade............................................................................................537
38.1 Loading Auxiliary Files.........................................................................................537
38.1.1 Call Progress Tones File .......................................................................................539
38.1.2 Prerecorded Tones File.........................................................................................541
38.1.3 CAS Files...............................................................................................................542
38.1.4 Dial Plan File..........................................................................................................542
38.1.4.1 Creating a Dial Plan File........................................................................ 542
38.1.4.2 External Dial Plan File........................................................................... 543
38.1.4.3 Dial Plan Prefix Tags for Routing.......................................................... 545
38.1.4.4 Obtaining IP Destination from Dial Plan File......................................... 549
38.1.4.5 Modifying ISDN-to-IP Calling Party Number......................................... 550
38.1.5 User Information File .............................................................................................551
38.1.5.1 Enabling the User Info Table................................................................. 551

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38.1.5.2 Gateway User Information for PBX Extensions and "Global" Numbers 551
38.1.5.3 User Information File for SBC User Database...................................... 555
38.2 Software License Key ..........................................................................................559
38.2.1 Obtaining the Software License Key File...............................................................559
38.2.2 Installing the Software License Key.......................................................................560
38.2.2.1 Installing Software License Key using Web Interface........................... 560
38.2.2.2 Installing Software License Key using CLI............................................ 561
38.3 Software Upgrade Wizard....................................................................................562
38.4 Backing Up and Loading Configuration File.........................................................567
39 Automatic Update Mechanism.......................................................................569
39.1 Automatic Configuration Methods........................................................................569
39.1.1 DHCP-based Provisioning.....................................................................................569
39.1.2 Provisioning from HTTP Server using DHCP Option 67.......................................570
39.1.3 Provisioning from TFTP Server using DHCP Option 66........................................571
39.1.4 HTTP-based Provisioning......................................................................................571
39.1.5 FTP- or NFS-based Provisioning...........................................................................572
39.1.6 Provisioning using AudioCodes EMS....................................................................572
39.2 HTTP/S-Based Provisioning using the Automatic Update Feature......................573
39.2.1 Files Provisioned by Automatic Update.................................................................573
39.2.2 File Location for Automatic Update .......................................................................573
39.2.3 Triggers for Automatic Update...............................................................................574
39.2.4 Access Authentication with HTTP Server..............................................................575
39.2.5 Querying Provisioning Server for Updated Files...................................................575
39.2.6 File Download Sequence.......................................................................................577
39.2.7 Cyclic Redundancy Check on Downloaded Configuration Files...........................578
39.2.8 MAC Address Automatically Inserted in Configuration File Name........................578
39.2.9 Automatic Update Configuration Examples...........................................................579
39.2.9.1 Automatic Update for Single Device ..................................................... 579
39.2.9.2 Automatic Update from NFS, FTP and HTTP Servers ......................... 580
39.2.9.3 Automatic Update for Mass Deployment............................................... 581
40 Restoring Factory Defaults ............................................................................583
40.1 Restoring Defaults using CLI ...............................................................................583
40.2 Restoring Defaults using Hardware Reset Button................................................584
40.3 Restoring Defaults using an ini File......................................................................584
41 Automatic Archiving of Configuration File ...................................................585
42 USB Storage Capabilities...............................................................................587
Status, Performance Monitoring and Reporting.................................................589
43 System Status .................................................................................................591
43.1 Viewing Device Information..................................................................................591
43.2 Viewing Ethernet Port Information .......................................................................592
44 Carrier-Grade Alarms......................................................................................593
44.1 Viewing Active Alarms..........................................................................................593
44.2 Viewing Alarm History..........................................................................................594
45 Performance Monitoring.................................................................................595
45.1 Viewing MOS per Media Realm...........................................................................595
45.2 Viewing Trunk Utilization......................................................................................596

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User's Manual Contents
45.3 Viewing Quality of Experience .............................................................................597
45.4 Viewing Average Call Duration ............................................................................599
46 VoIP Status ......................................................................................................601
46.1 Viewing Trunks & Channels Status......................................................................601
46.2 Viewing NFAS Groups and D-Channel Status.....................................................602
46.3 Viewing Active IP Interfaces.................................................................................603
46.4 Viewing Ethernet Device Status...........................................................................604
46.5 Viewing Static Routes Status...............................................................................604
46.6 Viewing Performance Statistics............................................................................605
46.7 Viewing Call Counters..........................................................................................605
46.8 Viewing Registered SAS/SBC Users...................................................................607
46.9 Viewing Registration Status.................................................................................608
46.10Viewing Call Routing Status.................................................................................608
46.11Viewing IP Connectivity........................................................................................610
47 Reporting Information to External Party .......................................................613
47.1 Configuring RTCP XR..........................................................................................613
47.2 Generating Call Detail Records............................................................................616
47.2.1 Configuring CDR Reporting...................................................................................616
47.2.2 CDR Field Description...........................................................................................617
47.2.2.1 CDR Fields for SBC Signaling .............................................................. 617
47.2.2.2 CDR Fields for SBC Media ................................................................... 620
47.2.2.3 CDR Fields for Gateway/IP-to-IP Application ....................................... 621
47.2.2.4 Release Reasons in CDR..................................................................... 625
47.3 Configuring RADIUS Accounting .........................................................................627
47.4 Event Notification using X-Detect Header............................................................631
47.5 Querying Device Channel Resources using SIP OPTIONS ................................634
Diagnostics............................................................................................................635
48 Syslog and Debug Recordings ......................................................................637
48.1 Syslog Message Format ......................................................................................637
48.1.1 Event Representation in Syslog Messages...........................................................638
48.1.2 Identifying AudioCodes Syslog Messages using Facility Levels...........................640
48.1.3 SNMP Alarms in Syslog Messages.......................................................................641
48.2 Enabling Syslog ...................................................................................................642
48.3 Configuring Web Operations to Report to Syslog................................................643
48.4 Configuring Debug Recording..............................................................................643
48.5 Filtering Syslog Messages and Debug Recordings .............................................644
48.5.1 Filtering IP Network Traces ...................................................................................646
48.6 Viewing Syslog Messages ...................................................................................647
48.7 Collecting Debug Recording Messages...............................................................649
48.8 Debug Capturing on Physical VoIP Interfaces.....................................................651

User's Manual 14 Document #: LTRT-10427
Mediant 500 E-SBC
49 Self-Testing......................................................................................................653
50 Creating Core Dump and Debug Files upon Device Crash .........................655
51 Testing SIP Signaling Calls............................................................................657
51.1 Configuring Test Call Endpoints...........................................................................657
51.2 Starting and Stopping Test Calls..........................................................................661
51.3 Viewing Test Call Statistics..................................................................................662
51.4 Configuring DTMF Tones for Test Calls...............................................................663
51.5 Configuring Basic Test Call..................................................................................664
51.6 Configuring SBC Test Call with External Proxy ...................................................665
51.7 Test Call Configuration Examples........................................................................666
Appendix................................................................................................................669
52 Dialing Plan Notation for Routing and Manipulation....................................671
53 Configuration Parameters Reference............................................................673
53.1 Management Parameters.....................................................................................673
53.1.1 General Parameters ..............................................................................................673
53.1.2 Web Parameters....................................................................................................674
53.1.3 Telnet Parameters.................................................................................................677
53.1.4 ini File Parameters.................................................................................................677
53.1.5 SNMP Parameters.................................................................................................678
53.1.6 Serial Parameters..................................................................................................681
53.1.7 Auxiliary and Configuration File Name Parameters ..............................................682
53.1.8 Automatic Update Parameters ..............................................................................683
53.2 Networking Parameters........................................................................................686
53.2.1 Ethernet Parameters..............................................................................................686
53.2.2 Multiple VoIP Network Interfaces and VLAN Parameters.....................................687
53.2.3 Routing Parameters...............................................................................................687
53.2.4 Quality of Service Parameters...............................................................................688
53.2.5 NAT Parameters....................................................................................................689
53.2.6 NFS Parameters....................................................................................................690
53.2.7 DNS Parameters....................................................................................................691
53.2.8 DHCP Parameters.................................................................................................691
53.2.9 NTP and Daylight Saving Time Parameters..........................................................693
53.3 Debugging and Diagnostics Parameters..............................................................695
53.3.1 General Parameters ..............................................................................................695
53.3.2 SIP Test Call Parameters......................................................................................696
53.3.3 Syslog, CDR and Debug Parameters....................................................................697
53.3.4 Resource Allocation Indication Parameters...........................................................702
53.3.5 HA Ping Parameters..............................................................................................703
53.4 Security Parameters.............................................................................................703
53.4.1 General Security Parameters ................................................................................703
53.4.2 HTTPS Parameters ...............................................................................................705
53.4.3 SRTP Parameters..................................................................................................707
53.4.4 TLS Parameters.....................................................................................................709
53.4.5 SSH Parameters....................................................................................................711
53.4.6 IDS Parameters.....................................................................................................712
53.5 Quality of Experience Parameters .......................................................................713
53.6 Control Network Parameters................................................................................716
53.6.1 IP Group, Proxy, Registration and Authentication Parameters.............................716
53.6.2 Network Application Parameters...........................................................................727

Version 6.8 15 Mediant 500 E-SBC
User's Manual Contents
53.7 General SIP Parameters......................................................................................729
53.8 Coders and Profile Parameters............................................................................755
53.9 Channel Parameters............................................................................................758
53.9.1 Voice Parameters..................................................................................................758
53.9.2 Coder Parameters .................................................................................................760
53.9.3 DTMF Parameters.................................................................................................761
53.9.4 RTP, RTCP and T.38 Parameters.........................................................................762
53.10Gateway and IP-to-IP Parameters.......................................................................767
53.10.1Fax and Modem Parameters.................................................................................767
53.10.2DTMF and Hook-Flash Parameters.......................................................................774
53.10.3Digit Collection and Dial Plan Parameters.............................................................777
53.10.4Voice Mail Parameters...........................................................................................779
53.10.5Supplementary Services Parameters....................................................................784
53.10.5.1Caller ID Parameters............................................................................. 784
53.10.5.2Call Waiting Parameters........................................................................ 785
53.10.5.3Call Forwarding Parameters ................................................................. 785
53.10.5.4Call Hold Parameters............................................................................ 786
53.10.5.5Call Transfer Parameters...................................................................... 787
53.10.5.6MLPP and Emergency Call Parameters ............................................... 789
53.10.5.7Call Cut-Through Parameters............................................................... 794
53.10.6PSTN Parameters..................................................................................................795
53.10.6.1General Parameters.............................................................................. 795
53.10.6.2TDM Bus and Clock Timing Parameters............................................... 800
53.10.6.3CAS Parameters ................................................................................... 802
53.10.6.4ISDN Parameters.................................................................................. 805
53.10.7ISDN and CAS Interworking Parameters ..............................................................812
53.10.8Answer and Disconnect Supervision Parameters.................................................828
53.10.9Tone Parameters...................................................................................................831
53.10.9.1Telephony Tone Parameters................................................................. 831
53.10.9.2Tone Detection Parameters.................................................................. 836
53.10.9.3Metering Tone Parameters ................................................................... 837
53.10.10 Trunk Groups and Routing Parameters ...........................................................838
53.10.11 IP Connectivity Parameters..............................................................................846
53.10.12 Alternative Routing Parameters .......................................................................847
53.10.13 Number Manipulation Parameters....................................................................849
53.11SBC Parameters..................................................................................................860
53.12Standalone Survivability Parameters...................................................................873
53.13IP Media Parameters ...........................................................................................877
53.14Services ...............................................................................................................881
53.14.1SIP-based Media Recording Parameters..............................................................881
53.14.2RADIUS and LDAP Parameters............................................................................882
53.14.2.1General Parameters.............................................................................. 882
53.14.2.2RADIUS Parameters............................................................................. 882
53.14.2.3LDAP Parameters ................................................................................. 884
53.14.3Least Cost Routing Parameters ............................................................................887
53.14.4Call Setup Rules Parameters................................................................................888
54 SBC and DSP Channel Capacity....................................................................889
54.1 Signaling-Media Sessions & User Registrations..................................................889
54.2 Channel Capacity and Capabilities......................................................................890
55 Technical Specifications ................................................................................891

User's Manual 16 Document #: LTRT-10427
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Version 6.8 17 Mediant 500 E-SBC
User's Manual Notices
Notice
This document describes AudioCodes Mediant 500 Enterprise Session Border Controller (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 2014 AudioCodes Ltd. All rights reserved.
This document is subject to change without notice.
Date Published: September-07-2014
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
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.
Abbreviations and Terminology
Each abbreviation, unless widely used, is spelled out in full when first used.

User's Manual 18 Document #: LTRT-10427
Mediant 500 E-SBC
Related Documentation
Manual Name
SIP CPE Release Notes
Mediant 500 E-SBC Hardware Installation Manual
Complementary Guides
CLI Reference Guide
CPE Configuration Guide for IP Voice Mail
SNMP Reference Guide
SBC Design Guide
Recommended Security Guidelines Configuration Note
SIP Message Manipulations Quick Reference Guide
SAS Application Configuration Guide
CAS Protocol Table Configuration Note
Utility Guides
INI Viewer & Editor Utility User's Guide
DConvert User's Guide
AcBootP Utility User's Guide
CLI Wizard User's Guide
Notes and Warnings
Note: This device is considered an INDOOR unit and therefore, must be installed only
indoors. In addition, Ethernet port interface cabling must be routed only indoors and
must not exit the building.
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
wit
h your organization’s security policies. For basic security guidelines, refer to
AudioCodes Recommended Security Guidelines document.
Note: Throughout this manual, unless otherwise specified, the term device refers to
your AudioCodes product.
Note: Before configuring the device, ensure that it is installed correctly as instructed
in the Hardware Installation Manual.

Version 6.8 19 Mediant 500 E-SBC
User's Manual Notices
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
([e-mail]).
Note: Some of the features listed in this document are available only if the relevant
Software License Key has been purchased from AudioCodes and installed on the
device. For a list of Software License Keys that can be purchased, please consult
your AudioCodes sales representative.
Note: OPEN SOURCE SOFTWARE. Portions of the software may be open source
software and may be governed by and distributed under open source licenses, such
as the terms of the GNU General Public License (GPL), the terms of the Lesser
General Public License (LGPL), BSD and LDAP, which terms are located at:
http://www.audiocodes.com/support and all are incorporated herein by reference. If
any open source software is provided in object code, and its accompanying license
requires that it be provided in source code as well, Buyer may receive such source
code by contacting AudioCodes, by following the instructions available on
AudioCodes website.

User's Manual 20 Document #: LTRT-10427
Mediant 500 E-SBC
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.