AudioCodes Mediant 4000 SBC Manuel utilisateur

User's Manual

AudioCodes Mediant™ Family of Session Border Controllers (SBC)

Mediant 4000 SBC

Version 7.2

Version 7.2 3 Mediant 4000 SBC

User's Manual Contents

Table of Contents

1Introduction .......................................................................................................21

1.1 Product Overview...................................................................................................21

1.2 Typographical Conventions....................................................................................22

1.3 Getting Familiar with Configuration Concepts and Terminology............................23

1.3.1 SBC Application.......................................................................................................23

Getting Started with Initial Connectivity................................................................27

2Introduction .......................................................................................................29

3Default OAMP IP Address.................................................................................31

4Configuring VoIP LAN Interface for OAMP .....................................................33

4.1 Web Interface.........................................................................................................33

4.2 CLI..........................................................................................................................35

Management Tools..................................................................................................37

5Introduction .......................................................................................................39

6Web-Based Management..................................................................................41

6.1 Getting Acquainted with the Web Interface............................................................41

6.1.1 Computer Requirements..........................................................................................41

6.1.2 Accessing the Web Interface...................................................................................42

6.1.3 Areas of the GUI......................................................................................................43

6.1.4 Accessing Configuration Pages from Navigation Tree............................................45

6.1.5 Configuring Stand-alone Parameters......................................................................47

6.1.6 Configuring Table Parameters.................................................................................48

6.1.6.1 Adding Table Rows..................................................................................49

6.1.6.2 Modifying Table Rows..............................................................................50

6.1.6.3 Deleting Table Rows................................................................................51

6.1.6.4 Invalid Value Indications ..........................................................................51

6.1.6.5 Viewing Table Rows.................................................................................53

6.1.6.6 Sorting Tables by Column........................................................................53

6.1.6.7 Changing Index Position of Table Rows..................................................54

6.1.6.8 Searching Table Entries...........................................................................55

6.1.7 Searching for Configuration Parameters.................................................................55

6.1.8 Creating a Login Welcome Message.......................................................................57

6.1.9 Getting Help.............................................................................................................57

6.1.10 Logging Off the Web Interface.................................................................................58

6.2 Configuring Management User Accounts ..............................................................58

6.3 Displaying Login Information upon Login...............................................................62

6.4 Viewing Logged-In User Information......................................................................63

6.5 Configuring Web Session and Access Settings.....................................................63

6.6 Changing Login Password for Administrator and Monitor Users ...........................65

6.7 Configuring Secured (HTTPS) Web.......................................................................65

6.8 Web Login Authentication using Smart Cards .......................................................66

6.9 Configuring Web and Telnet Access List...............................................................67

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7CLI-Based Management....................................................................................69

7.1 Getting Familiar with CLI........................................................................................69

7.1.1 Understanding Configuration Modes.......................................................................69

7.1.2 Using CLI Shortcuts.................................................................................................70

7.1.3 Common CLI Commands........................................................................................71

7.1.4 Configuring Tables through CLI...............................................................................72

7.1.5 Understanding CLI Error Messages........................................................................73

7.2 Enabling CLI...........................................................................................................73

7.2.1 Enabling Telnet for CLI............................................................................................73

7.2.2 Enabling SSH with RSA Public Key for CLI.............................................................74

7.3 Configuring Maximum Telnet/SSH Sessions.........................................................76

7.4 Establishing a CLI Session ....................................................................................76

7.5 Viewing Current CLI Sessions ...............................................................................77

7.6 Terminating a User's CLI Session..........................................................................78

7.7 Configuring Displayed Output Lines in CLI Terminal Window ...............................78

8SNMP-Based Management...............................................................................79

8.1 Enabling SNMP......................................................................................................79

8.2 Configuring SNMP Community Strings..................................................................79

8.3 Configuring SNMP Trap Destinations with IP Addresses ......................................81

8.4 Configuring an SNMP Trap Destination with FQDN ..............................................83

8.5 Configuring SNMP Trusted Managers...................................................................83

8.6 Enabling SNMP Traps for Web Activity..................................................................84

8.7 Configuring SNMP V3 Users..................................................................................84

9INI File-Based Management..............................................................................87

9.1 INI File Format .......................................................................................................87

9.1.1 Configuring Individual ini File Parameters...............................................................87

9.1.2 Configuring Table ini File Parameters.....................................................................87

9.1.3 General ini File Formatting Rules............................................................................89

9.2 Configuring an ini File ............................................................................................89

9.3 Loading an ini File to the Device............................................................................90

9.4 Secured Encoded ini File.......................................................................................90

9.5 Configuring Password Display in ini File................................................................90

9.6 INI Viewer and Editor Utility ...................................................................................92

General System Settings ........................................................................................93

10 Configuring SSL/TLS Certificates....................................................................95

10.1 Configuring TLS Certificate Contexts.....................................................................95

10.2 Assigning CSR-based Certificates to TLS Contexts..............................................99

10.3 Viewing Certificate Information ............................................................................102

10.4 Assigning Externally Created Private Keys to TLS Contexts...............................103

10.5 Generating Private Keys for TLS Contexts..........................................................104

10.6 Creating Self-Signed Certificates for TLS Contexts.............................................105

10.7 Importing Certificates and Certificate Chain into Trusted Certificate Store..........106

10.8 Configuring Mutual TLS Authentication................................................................108

10.8.1 TLS for SIP Clients................................................................................................108

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10.8.2 TLS for Remote Device Management...................................................................108

10.9 Configuring TLS Server Certificate Expiry Check................................................109

11 Date and Time..................................................................................................111

11.1 Configuring Automatic Date and Time using SNTP.............................................111

11.2 Configuring Date and Time Manually...................................................................112

11.3 Configuring the Time Zone...................................................................................113

11.4 Configuring Daylight Saving Time........................................................................114

General VoIP Configuration..................................................................................115

12 Network............................................................................................................117

12.1 Building and Viewing your Network Topology......................................................117

12.2 Configuring Physical Ethernet Ports ....................................................................120

12.3 Configuring Ethernet Port Groups........................................................................123

12.4 Configuring Underlying Ethernet Devices............................................................125

12.5 Configuring IP Network Interfaces .......................................................................127

12.5.1 Assigning NTP Services to Application Types ......................................................131

12.5.2 IP Interfaces Table Configuration Guidelines........................................................131

12.5.3 Networking Configuration Examples .....................................................................132

12.5.3.1 One VoIP Interface for All Applications................................................. 132

12.5.3.2 VoIP Interface per Application Type...................................................... 133

12.5.3.3 VoIP Interfaces for Combined Application Types ................................. 133

12.5.3.4 VoIP Interfaces with Multiple Default Gateways................................... 134

12.6 Configuring Static IP Routes................................................................................135

12.6.1 Configuration Example of Static IP Routes ...........................................................137

12.6.2 Troubleshooting the Static Routes Table ..............................................................138

12.7 Network Address Translation Support .................................................................138

12.7.1 Device Located behind NAT..................................................................................138

12.7.1.1 Configuring NAT Translation per IP Interface....................................... 139

12.7.2 Remote UA behind NAT........................................................................................141

12.7.2.1 SIP Signaling Messages....................................................................... 141

12.7.2.2 Media (RTP/RTCP/T.38)....................................................................... 141

12.8 Configuring Quality of Service..............................................................................145

12.8.1 Configuring Class-of-Service QoS.........................................................................145

12.8.2 Configuring DiffServ-to-VLAN Priority Mapping.....................................................147

12.9 Configuring ICMP Messages ...............................................................................148

12.10DNS......................................................................................................................149

12.10.1Configuring the Internal DNS Table.......................................................................149

12.10.2Configuring the Internal SRV Table.......................................................................150

12.11Robust Receipt of Media Streams by Media Latching.........................................152

12.12Multiple Routers Support......................................................................................154

13 Security............................................................................................................155

13.1 Configuring Firewall Settings ...............................................................................155

13.2 Configuring General Security Settings.................................................................160

13.3 Intrusion Detection System..................................................................................161

13.3.1 Enabling IDS..........................................................................................................162

13.3.2 Configuring IDS Policies........................................................................................162

13.3.3 Assigning IDS Policies...........................................................................................166

User's Manual 6 Document #: LTRT-41729

Mediant 4000 SBC

13.3.4 Viewing IDS Alarms...............................................................................................168

14 Media................................................................................................................171

14.1 Configuring Voice Settings...................................................................................171

14.1.1 Configuring Voice Gain (Volume) Control .............................................................171

14.1.2 Silence Suppression (Compression).....................................................................171

14.1.3 Configuring Echo Cancellation..............................................................................172

14.2 Fax and Modem Capabilities................................................................................173

14.2.1 Fax/Modem Operating Modes...............................................................................174

14.2.2 Fax/Modem Transport Modes ...............................................................................174

14.2.2.1 T.38 Fax Relay Mode............................................................................ 175

14.2.2.2 G.711 Fax / Modem Transport Mode.................................................... 177

14.2.2.3 Fax Fallback.......................................................................................... 178

14.2.2.4 Fax/Modem Bypass Mode .................................................................... 178

14.2.2.5 Fax / Modem NSE Mode....................................................................... 180

14.2.2.6 Fax / Modem Transparent with Events Mode....................................... 181

14.2.2.7 Fax / Modem Transparent Mode........................................................... 181

14.2.2.8 RFC 2833 ANS Report upon Fax/Modem Detection............................ 182

14.2.3 V.34 Fax Support...................................................................................................182

14.2.3.1 Bypass Mechanism for V.34 Fax Transmission.................................... 183

14.2.3.2 Relay Mode for T.30 and V.34 Faxes................................................... 183

14.2.4 V.152 Support........................................................................................................183

14.3 Configuring RTP/RTCP Settings..........................................................................184

14.3.1 Configuring the Dynamic Jitter Buffer....................................................................184

14.3.2 Configuring RFC 2833 Payload.............................................................................185

14.3.3 Configuring RTP Base UDP Port...........................................................................186

14.4 Event Detection and Notification using X-Detect Header.....................................187

14.4.1 Detecting Answering Machine Beeps....................................................................188

14.4.2 SIP Call Flow Examples of Event Detection and Notification................................189

14.5 Answering Machine Detection (AMD)..................................................................191

14.5.1 Configuring AMD ...................................................................................................193

14.6 Automatic Gain Control (AGC).............................................................................194

14.7 Configuring Media (SRTP) Security.....................................................................195

14.7.1 SRTP using DTLS Protocol...................................................................................197

15 Services ...........................................................................................................199

15.1 DHCP Server Functionality..................................................................................199

15.1.1 Configuring the DHCP Server ...............................................................................199

15.1.2 Configuring the Vendor Class Identifier.................................................................204

15.1.3 Configuring Additional DHCP Options...................................................................205

15.1.4 Configuring Static IP Addresses for DHCP Clients...............................................207

15.1.5 Viewing and Deleting DHCP Clients......................................................................208

15.2 SIP-based Media Recording................................................................................209

15.2.1 Enabling SIP-based Media Recording...................................................................213

15.2.2 Configuring SIP Recording Rules..........................................................................213

15.2.3 Configuring SIP User Part for SRS........................................................................214

15.2.4 Interworking SIP-based Media Recording with Third-Party Vendors....................215

15.2.4.1 Genesys................................................................................................ 215

15.2.4.2 Avaya UCID........................................................................................... 215

15.3 RADIUS-based Services......................................................................................216

15.3.1 Enabling RADIUS Services ...................................................................................216

15.3.2 Configuring RADIUS Servers................................................................................216

15.3.3 Configuring Interface for RADIUS Communication...............................................219

15.3.4 Configuring RADIUS Packet Retransmission........................................................219

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User's Manual Contents

15.3.5 Configuring the RADIUS Vendor ID ......................................................................219

15.3.6 RADIUS-based Management User Authentication ...............................................220

15.3.6.1 Setting Up a Third-Party RADIUS Server ............................................. 221

15.3.6.2 Configuring RADIUS-based User Authentication.................................. 222

15.3.6.3 Securing RADIUS Communication ....................................................... 223

15.3.6.4 RADIUS-based User Authentication in URL......................................... 223

15.3.7 RADIUS-based CDR Accounting ..........................................................................224

15.4 LDAP-based Management and SIP Services......................................................224

15.4.1 Enabling the LDAP Service...................................................................................225

15.4.2 Enabling LDAP-based Web/CLI User Login Authentication and Authorization.....226

15.4.3 Configuring LDAP Server Groups .........................................................................226

15.4.4 Configuring LDAP Servers.....................................................................................228

15.4.5 Configuring LDAP DNs (Base Paths) per LDAP Server........................................232

15.4.6 Configuring the LDAP Search Filter Attribute........................................................233

15.4.7 Configuring Access Level per Management Groups Attributes ............................234

15.4.8 Configuring the Device's LDAP Cache..................................................................236

15.4.8.1 Refreshing the LDAP Cache................................................................. 238

15.4.8.2 Clearing the LDAP Cache..................................................................... 239

15.4.9 Configuring Local Database for Management User Authentication......................239

15.4.10LDAP-based Login Authentication Example..........................................................241

15.4.11Enabling LDAP Searches for Numbers with Characters.......................................245

15.4.12AD-based Routing for Microsoft Skype for Business ............................................245

15.4.12.1Querying the AD and Routing Priority................................................... 246

15.4.12.2Configuring AD-Based Routing Rules................................................... 249

15.5 Least Cost Routing...............................................................................................251

15.5.1 Overview................................................................................................................251

15.5.2 Configuring LCR....................................................................................................253

15.5.2.1 Configuring Cost Groups....................................................................... 253

15.5.2.2 Assigning Cost Groups to Routing Rules.............................................. 256

15.6 Remote Web Services .........................................................................................257

15.6.1 Configuring Remote Web Services .......................................................................257

15.6.1.1 Configuring Remote HTTP Hosts.......................................................... 261

15.6.2 Enabling Topology Status Services.......................................................................263

15.6.3 Centralized Third-Party Routing Server.................................................................263

15.7 HTTP-based Proxy Services................................................................................267

15.7.1 Enabling the HTTP Proxy Application ...................................................................268

15.7.2 Configuring HTTP Interfaces.................................................................................268

15.7.3 Configuring HTTP Proxy Services.........................................................................270

15.7.3.1 Configuring HTTP Proxy Hosts............................................................. 271

15.7.4 Configuring an HTTP-based EMS Service............................................................273

15.8 E9-1-1 Support for Microsoft Skype for Business................................................275

15.8.1 About E9-1-1 Services...........................................................................................275

15.8.2 Microsoft Skype for Business and E9-1-1 .............................................................276

15.8.2.1 Gathering Location Information of Skype for Business Clients for 911

Calls 277

15.8.2.2 Adding ELINs to the Location Information Server................................. 278

15.8.2.3 Passing Location Information to the PSTN Emergency Provider......... 279

15.8.3 AudioCodes ELIN Device for Skype for Business E9-1-1 Calls to PSTN.............280

15.8.3.1 Detecting and Handling E9-1-1 Calls.................................................... 281

15.8.3.2 Pre-empting Existing Calls for E9-1-1 Calls.......................................... 283

15.8.3.3 PSAP Callback to Skype for Business Clients for Dropped E9-1-1 Calls

283

15.8.3.4 Selecting ELIN for Multiple Calls within Same ERL.............................. 284

15.8.4 Configuring AudioCodes ELIN Device...................................................................285

15.8.4.1 Enabling the E9-1-1 Feature................................................................. 285

User's Manual 8 Document #: LTRT-41729

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15.8.4.2 Configuring the E9-1-1 Callback Timeout............................................. 285

15.8.4.3 Configuring SBC IP-to-IP Routing Rule for E9-1-1............................... 285

15.8.4.4 Viewing the ELIN Table......................................................................... 286

16 Quality of Experience......................................................................................287

16.1 Reporting Voice Quality of Experience to SEM....................................................287

16.1.1 Configuring the SEM Server..................................................................................287

16.1.2 Configuring Clock Synchronization between Device and SEM.............................288

16.1.3 Enabling RTCP XR Reporting to SEM ..................................................................288

16.2 Configuring Quality of Experience Profiles...........................................................289

16.3 Configuring Bandwidth Profiles............................................................................294

16.4 Configuring Quality of Service Rules ...................................................................298

17 Control Network ..............................................................................................301

17.1 Configuring Media Realms...................................................................................301

17.1.1 Configuring Remote Media Subnets......................................................................304

17.1.2 Configuring Media Realm Extensions ...................................................................307

17.2 Configuring SRDs ................................................................................................309

17.2.1 Filtering Tables in Web Interface by SRD .............................................................315

17.2.2 Multiple SRDs for Multi-tenant Deployments.........................................................315

17.2.3 Cloning SRDs........................................................................................................317

17.2.4 Color-Coding of SRDs in Web Interface................................................................318

17.2.5 Automatic Configuration based on SRD................................................................319

17.3 Configuring SIP Interfaces...................................................................................319

17.4 Configuring IP Groups..........................................................................................326

17.5 Configuring Proxy Sets ........................................................................................338

17.6 Building and Viewing SIP Entities in Topology View............................................346

18 SIP Definitions.................................................................................................351

18.1 Configuring Registration Accounts.......................................................................351

18.1.1 Regular Registration Mode....................................................................................354

18.1.2 Single Registration for Multiple Phone Numbers using GIN..................................354

18.2 Configuring Proxy and Registration Parameters..................................................355

18.2.1 SIP Message Authentication Example ..................................................................356

18.3 Configuring SIP Message Manipulation...............................................................358

18.4 Configuring SIP Message Policy Rules................................................................363

18.5 Configuring Call Setup Rules...............................................................................366

18.5.1 Call Setup Rule Examples.....................................................................................371

19 Coders and Profiles ........................................................................................375

19.1 Configuring Coder Groups...................................................................................375

19.1.1 Supported Audio Coders .......................................................................................378

19.1.2 Configuring Various Codec Attributes ...................................................................379

19.2 Configuring Allowed Audio Coder Groups ...........................................................380

19.3 Configuring Allowed Video Coder Groups ...........................................................383

19.4 Configuring IP Profiles .........................................................................................384

Session Border Controller Application................................................................413

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20 SBC Overview..................................................................................................415

20.1 Feature List..........................................................................................................415

20.2 B2BUA and Stateful Proxy Operating Modes ......................................................416

20.3 Call Processing of SIP Dialog Requests..............................................................419

20.4 User Registration .................................................................................................421

20.4.1 Initial Registration Request Processing.................................................................421

20.4.2 Classification and Routing of Registered Users....................................................422

20.4.3 General Registration Request Processing ............................................................423

20.4.4 Registration Refreshes..........................................................................................423

20.4.5 Registration Restriction Control.............................................................................424

20.4.6 Deleting Registered Users.....................................................................................424

20.5 Media Handling....................................................................................................424

20.5.1 Media Anchoring....................................................................................................425

20.5.2 Direct Media...........................................................................................................426

20.5.3 Restricting Audio Coders.......................................................................................428

20.5.4 Coder Transcoding................................................................................................429

20.5.5 Transcoding Mode.................................................................................................432

20.5.6 Prioritizing Coder List in SDP Offer.......................................................................432

20.5.7 SRTP-RTP and SRTP-SRTP Transcoding ...........................................................433

20.5.8 Multiple RTP Media Streams per Call Session .....................................................433

20.5.9 Interworking Miscellaneous Media Handling.........................................................434

20.5.9.1 Interworking DTMF Methods................................................................. 434

20.5.9.2 Interworking RTP Redundancy............................................................. 434

20.5.9.3 Interworking RTP-RTCP Multiplexing ................................................... 434

20.5.9.4 Interworking RTCP Attribute in SDP..................................................... 434

20.5.9.5 Interworking Crypto Lifetime Field......................................................... 435

20.5.9.6 Interworking Media Security Protocols.................................................. 435

20.5.9.7 Interworking ICE Lite for NAT Traversal ............................................... 435

20.6 Fax Negotiation and Transcoding........................................................................435

20.7 Limiting SBC Call Duration...................................................................................436

20.8 SBC Authentication..............................................................................................436

20.8.1 SIP Authentication Server Functionality................................................................436

20.8.2 User Authentication based on RADIUS.................................................................437

20.9 Interworking SIP Signaling...................................................................................437

20.9.1 Interworking SIP 3xx Redirect Responses............................................................438

20.9.1.1 Resultant INVITE Traversing Device .................................................... 438

20.9.1.2 Local Handling of SIP 3xx..................................................................... 439

20.9.2 Interworking SIP Diversion and History-Info Headers...........................................440

20.9.3 Interworking SIP REFER Messages......................................................................440

20.9.4 Interworking SIP PRACK Messages .....................................................................441

20.9.5 Interworking SIP Session Timer............................................................................441

20.9.6 Interworking SIP Early Media................................................................................441

20.9.7 Interworking SIP re-INVITE Messages..................................................................444

20.9.8 Interworking SIP UPDATE Messages...................................................................444

20.9.9 Interworking SIP re-INVITE to UPDATE................................................................445

20.9.10Interworking Delayed Offer....................................................................................445

20.9.11Interworking Call Hold............................................................................................445

20.9.12Interworking SIP Via Headers ...............................................................................446

20.9.13Interworking SIP User-Agent Headers ..................................................................446

20.9.14Interworking SIP Record-Route Headers..............................................................446

20.9.15Interworking SIP To-Header Tags in Multiple SDP Answers................................446

20.9.16Interworking In-dialog SIP Contact and Record-Route Headers...........................446

User's Manual 10 Document #: LTRT-41729

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21 Enabling the SBC Application........................................................................447

22 Configuring General SBC Settings................................................................449

22.1 Interworking Dialog Information in SIP NOTIFY Messages.................................449

23 Configuring Admission Control.....................................................................451

24 Routing SBC....................................................................................................455

24.1 Configuring Classification Rules ..........................................................................455

24.1.1 Classification Based on URI of Selected Header Example...................................462

24.2 Configuring Message Condition Rules.................................................................463

24.3 Configuring SBC IP-to-IP Routing........................................................................464

24.4 Configuring SIP Response Codes for Alternative Routing Reasons....................476

24.5 Configuring SBC Routing Policy Rules................................................................478

25 SBC Manipulations..........................................................................................483

25.1 Configuring IP-to-IP Inbound Manipulations ........................................................485

25.2 Configuring IP-to-IP Outbound Manipulations......................................................489

26 Configuring Dial Plans....................................................................................495

26.1 Importing and Exporting Dial Plans......................................................................499

26.2 Creating Dial Plan Files........................................................................................502

26.3 Using Dial Plan Tags for IP-to-IP Routing............................................................503

26.3.1 Dial Plan Backward Compatibility..........................................................................504

26.4 Using Dial Plan Tags for Outbound Manipulation................................................505

26.5 Using Dial Plan Tags for Call Setup Rules...........................................................506

26.6 Using Dial Plan Tags for Message Manipulation .................................................506

27 Configuring Malicious Signatures.................................................................507

28 Advanced SBC Features.................................................................................509

28.1 Configuring Call Preemption for SBC Emergency Calls ......................................509

28.2 Emergency Call Routing using LDAP to Obtain ELIN..........................................510

28.3 Enabling Interworking of SIP and SIP-I Endpoints...............................................511

28.4 WebRTC ..............................................................................................................514

28.4.1 SIP over WebSocket..............................................................................................516

28.4.2 Configuring WebRTC.............................................................................................518

28.5 Call Forking..........................................................................................................521

28.5.1 Initiating SIP Call Forking ......................................................................................521

28.5.2 Configuring SIP Forking Initiated by SIP Proxy.....................................................521

28.5.3 Configuring Call Forking-based IP-to-IP Routing Rules........................................522

28.6 Call Survivability...................................................................................................522

28.6.1 Enabling Auto-Provisioning of Subscriber-Specific Information of BroadWorks

Server for Survivability........................................................................................................522

28.6.2 Configuring BroadSoft's Shared Phone Line Call Appearance for Survivability ...523

28.6.3 Configuring Call Survivability for Call Centers.......................................................525

28.6.4 Enabling Survivability Display on Aastra IP Phones .............................................527

28.7 Alternative Routing on Detection of Failed SIP Response...................................527

28.8 VoIPerfect ............................................................................................................528

Cloud Resilience Package....................................................................................531

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