AudioCodes Mediant 3000 Manuale utente

User's Manual

AudioCodes Family of Media Gateways & Session Border Controllers (SBC)

Mediant™ 3000 Gateway &

Enterprise SBC

Version 6.8

Version 6.8 3 Mediant 3000

User's Manual Contents

Table of Contents

1Overview ............................................................................................................21

1.1 Functional Block Diagrams ....................................................................................23

1.2 SIP Overview .........................................................................................................25

Getting Started with Initial Connectivity................................................................29

2Introduction .......................................................................................................31

3Default OAMP IP Address.................................................................................33

4Configuring VoIP LAN Interface for OAMP .....................................................35

4.1 Web Interface.........................................................................................................35

4.2 CLI..........................................................................................................................37

4.3 BootP/TFTP Server................................................................................................39

5Configuring an IP Address for Mediant 3000 HA............................................41

5.1 Web Interface.........................................................................................................42

5.2 EMS .......................................................................................................................43

Management Tools..................................................................................................47

6Introduction .......................................................................................................49

7Web-Based Management..................................................................................51

7.1 Getting Acquainted with the Web Interface............................................................52

7.1.1 Computer Requirements..........................................................................................52

7.1.2 Accessing the Web Interface...................................................................................53

7.1.3 Areas of the GUI......................................................................................................54

7.1.4 Toolbar Description..................................................................................................55

7.1.5 Navigation Tree .......................................................................................................56

7.1.5.1 Displaying Navigation Tree in Basic and Full View..................................56

7.1.5.2 Showing / Hiding the Navigation Pane.....................................................57

7.1.6 Working with Configuration Pages ..........................................................................58

7.1.6.1 Accessing Pages......................................................................................58

7.1.6.2 Viewing Parameters.................................................................................58

7.1.6.3 Modifying and Saving Parameters...........................................................60

7.1.6.4 Working with Tables.................................................................................61

7.1.7 Searching for Configuration Parameters.................................................................62

7.1.8 Creating a Login Welcome Message.......................................................................64

7.1.9 Getting Help.............................................................................................................65

7.1.10 Logging Off the Web Interface.................................................................................66

7.2 Viewing the Home Page.........................................................................................67

7.3 Configuring Web User Accounts............................................................................69

7.3.1 Basic User Accounts Configuration.........................................................................71

7.3.2 Advanced User Accounts Configuration..................................................................72

7.4 Displaying Login Information upon Login...............................................................76

7.5 Configuring Web Security Settings ........................................................................77

7.6 Web Login Authentication using Smart Cards .......................................................78

7.7 Configuring Web and Telnet Access List...............................................................79

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8CLI-Based Management....................................................................................81

8.1 Enabling CLI...........................................................................................................81

8.1.1 Enabling Telnet for CLI............................................................................................81

8.1.2 Enabling SSH with RSA Public Key for CLI.............................................................82

8.2 Establishing a CLI Session ....................................................................................84

8.3 Configuring Maximum Telnet/SSH Sessions.........................................................85

8.4 Command Shell......................................................................................................86

8.4.1 Getting Familiar with the Command Shell...............................................................86

8.4.1.1Basic Command Shell Commands ..........................................................86

8.4.1.2 Accessing Subdirectories.........................................................................86

8.4.2 Status Commands...................................................................................................87

8.4.3 Ping Command........................................................................................................89

8.4.4 Test Call (TC) Commands.......................................................................................90

8.4.5 Management Commands ........................................................................................91

8.4.6 Configuration Commands........................................................................................91

8.4.7 PSTN Commands....................................................................................................92

8.4.8 LDAP Commands....................................................................................................92

9SNMP-Based Management...............................................................................95

9.1 Enabling SNMP and Configuring SNMP Community Strings.................................96

9.2 Configuring SNMP Trap Destinations....................................................................97

9.3 Configuring SNMP Trusted Managers...................................................................98

9.4 Configuring SNMP V3 Users..................................................................................99

10 INI File-Based Management............................................................................101

10.1 INI File Format .....................................................................................................101

10.1.1 Configuring Individual ini File Parameters.............................................................101

10.1.2 Configuring Table ini File Parameters...................................................................102

10.1.3 General ini File Formatting Rules..........................................................................103

10.2 Configuring an ini File ..........................................................................................104

10.3 Loading an ini File to the Device..........................................................................104

10.4 Secured Encoded ini File.....................................................................................105

10.5 Configuring Password Display in ini File..............................................................105

10.6 INI Viewer and Editor Utility .................................................................................106

General System Settings ......................................................................................107

11 Configuring SSL/TLS Certificates..................................................................109

11.1 Configuring TLS Certificate Contexts...................................................................109

11.1.1 Assigning CSR-based Certificates to TLS Contexts .............................................113

11.1.2 Assigning Externally Created Private Keys to TLS Contexts................................114

11.1.3 Generating Private Keys for TLS Contexts............................................................115

11.1.4 Creating Self-Signed Certificates for TLS Contexts..............................................116

11.1.5 Importing Certificates and Certificate Chain into Trusted Certificate Store...........117

11.1.6 Configuring Mutual TLS Authentication.................................................................118

11.1.6.1 TLS for SIP Clients................................................................................ 118

11.1.6.2 TLS for Remote Device Management................................................... 119

11.1.7 Configuring TLS Server Certificate Expiry Check .................................................120

12 Date and Time..................................................................................................121

12.1 Configuring Date and Time Manually...................................................................121

12.2 Configuring Automatic Date and Time using SNTP.............................................122

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User's Manual Contents

12.3 Configuring Daylight Saving Time........................................................................123

General VoIP Configuration..................................................................................125

13 Network............................................................................................................127

13.1 Ethernet Interface Configuration..........................................................................127

13.2 Ethernet Interface Redundancy ...........................................................................128

13.3 Configuring IP Network Interfaces .......................................................................129

13.3.1 Assigning NTP Services to Application Types ......................................................133

13.3.2 Multiple Interface Table Configuration Summary and Guidelines.........................133

13.3.3 Networking Configuration Examples .....................................................................135

13.3.3.1 One VoIP Interface for All Applications................................................. 135

13.3.3.2 VoIP Interface per Application Type...................................................... 135

13.3.3.3 VoIP Interfaces for Combined Application Types ................................. 136

13.3.3.4 VoIP Interfaces with Multiple Default Gateways................................... 137

13.4 Configuring Static IP Routes................................................................................137

13.4.1 Configuration Example of Static IP Routes ...........................................................139

13.4.2 Troubleshooting the Routing Table .......................................................................140

13.5 Configuring Quality of Service..............................................................................140

13.6 Configuring ICMP Messages ...............................................................................142

13.7 DNS......................................................................................................................143

13.7.1 Configuring the Internal DNS Table.......................................................................143

13.7.2 Configuring the Internal SRV Table.......................................................................145

13.8 Configuring NFS Settings.....................................................................................146

13.9 Network Address Translation Support .................................................................148

13.9.1 Device Located behind NAT..................................................................................148

13.9.1.1 Configuring STUN................................................................................. 149

13.9.1.2 Configuring a Static NAT IP Address for All Interfaces......................... 150

13.9.1.3 Configuring NAT Translation per IP Interface....................................... 150

13.9.2 Remote UA behind NAT........................................................................................152

13.9.2.1 SIP Signaling Messages....................................................................... 152

13.9.2.2 Media (RTP/RTCP/T.38)....................................................................... 152

13.10Robust Receipt of Media Streams by Media Latching.........................................155

13.11Multiple Routers Support......................................................................................155

13.12IP Multicasting......................................................................................................155

14 Security............................................................................................................157

14.1 Configuring Firewall Settings ...............................................................................157

14.2 Configuring General Security Settings.................................................................161

14.3 Intrusion Detection System..................................................................................162

14.3.1 Enabling IDS..........................................................................................................163

14.3.2 Configuring IDS Policies........................................................................................163

14.3.3 Assigning IDS Policies...........................................................................................167

14.3.4 Viewing IDS Alarms...............................................................................................168

14.4 IPSec and Internet Key Exchange.......................................................................170

14.4.1 Enabling IPSec......................................................................................................171

14.4.2 Configuring IP Security Proposal Table.................................................................171

14.4.3 Configuring IP Security Associations Table...........................................................173

15 Media................................................................................................................177

15.1 Configuring Voice Settings...................................................................................177

15.1.1 Configuring Voice Gain (Volume) Control.............................................................178

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15.1.2 Echo Cancellation..................................................................................................178

15.2 Fax and Modem Capabilities................................................................................179

15.2.1 Fax/Modem Operating Modes...............................................................................180

15.2.2 Fax/Modem Transport Modes ...............................................................................181

15.2.2.1 T.38 Fax Relay Mode............................................................................ 181

15.2.2.2 G.711 Fax / Modem Transport Mode.................................................... 183

15.2.2.3 Fax Fallback.......................................................................................... 184

15.2.2.4 Fax/Modem Bypass Mode .................................................................... 184

15.2.2.5 Fax / Modem NSE Mode....................................................................... 186

15.2.2.6 Fax / Modem Transparent with Events Mode....................................... 186

15.2.2.7 Fax / Modem Transparent Mode........................................................... 187

15.2.2.8 RFC 2833 ANS Report upon Fax/Modem Detection............................ 188

15.2.3 V.34 Fax Support...................................................................................................188

15.2.3.1 Bypass Mechanism for V.34 Fax Transmission.................................... 189

15.2.3.2 Relay Mode for T.30 and V.34 Faxes ................................................... 189

15.2.3.3 V.34 Fax Relay for SG3 Fax Machines................................................. 190

15.2.4 V.150.1 Modem Relay...........................................................................................192

15.2.5 Simultaneous Negotiation of Fax (T.38) and Modem (V.150.1) Relay..................193

15.2.6 V.152 Support........................................................................................................194

15.2.7 Fax Transmission behind NAT..............................................................................194

15.3 Configuring RTP/RTCP Settings..........................................................................195

15.3.1 Configuring the Dynamic Jitter Buffer....................................................................195

15.3.2 Comfort Noise Generation.....................................................................................196

15.3.3 Dual-Tone Multi-Frequency Signaling...................................................................197

15.3.3.1 Configuring DTMF Transport Types...................................................... 197

15.3.3.2 Configuring RFC 2833 Payload ............................................................ 198

15.3.4 Configuring RTP Base UDP Port...........................................................................199

15.4 Configuring IP Media Settings..............................................................................200

15.4.1 Answering Machine Detection (AMD)....................................................................200

15.4.1.1 Detecting Answering Machine Beeps ................................................... 203

15.4.1.2 SIP Call Flow Example of AMD............................................................. 203

15.4.1.3 Configuring AMD................................................................................... 204

15.4.1.4 Enabling IP-to-Tel Call Disconnection upon Detection of Answering

Machine 205

15.4.2 Automatic Gain Control (AGC)..............................................................................206

15.5 Configuring Various Codec Attributes..................................................................207

15.6 Configuring DSP Templates.................................................................................208

15.7 Configuring Media (SRTP) Security.....................................................................209

16 Services ...........................................................................................................211

16.1 SIP-based Media Recording................................................................................211

16.1.1 Enabling SIP-based Media Recording...................................................................214

16.1.2 Configuring SIP Recording Routing Rules............................................................214

16.1.3 Configuring SIP User Part for SRS........................................................................215

16.1.4 Interworking SIP-based Media Recording with Third-Party Vendors....................216

16.1.4.1 Genesys................................................................................................ 216

16.1.4.2 Avaya UCID........................................................................................... 216

16.2 RADIUS Authentication........................................................................................217

16.2.1 Setting Up a Third-Party RADIUS Server..............................................................218

16.2.2 Configuring RADIUS Authentication......................................................................219

16.2.3 Securing RADIUS Communication........................................................................220

16.2.4 Authenticating RADIUS in the URL.......................................................................220

16.3 LDAP-based Management and SIP Services......................................................221

16.3.1 Enabling the LDAP Service...................................................................................222

16.3.2 Enabling LDAP-based Web/CLI User Login Authentication and Authorization.....222

16.3.3 Configuring LDAP Servers.....................................................................................223

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User's Manual Contents

16.3.4 Configuring LDAP DNs (Base Paths) per LDAP Server........................................226

16.3.5 Configuring the LDAP Search Filter Attribute........................................................227

16.3.6 Configuring Access Level per Management Groups Attributes ............................228

16.3.7 Configuring LDAP Search Methods.......................................................................230

16.3.8 Configuring the Device's LDAP Cache..................................................................230

16.3.9 Configuring Local Database for Management User Authentication......................233

16.3.10LDAP-based Login Authentication Example..........................................................234

16.3.11Active Directory-based Routing for Microsoft Lync ...............................................238

16.3.11.1Querying the AD and Routing Priority................................................... 238

16.3.11.2Configuring AD-Based Routing Rules................................................... 241

16.3.11.3Querying the AD for Calling Name........................................................ 243

16.4 Least Cost Routing...............................................................................................244

16.4.1 Overview................................................................................................................244

16.4.2 Configuring LCR....................................................................................................247

16.4.2.1 Enabling the LCR Feature..................................................................... 247

16.4.2.2 Configuring Cost Groups....................................................................... 248

16.4.2.3 Configuring Time Bands for Cost Groups............................................. 249

16.4.2.4 Assigning Cost Groups to Routing Rules.............................................. 250

16.5 Configuring Call Setup Rules...............................................................................251

16.5.1 Call Setup Rule Examples.....................................................................................255

17 Quality of Experience......................................................................................257

17.1 Reporting Voice Quality of Experience to SEM....................................................257

17.1.1 Configuring the SEM Server..................................................................................257

17.1.2 Configuring Clock Synchronization between Device and SEM.............................258

17.1.3 Enabling RTCP XR Reporting to SEM ..................................................................258

17.2 Configuring Quality of Experience Profiles...........................................................258

17.3 Configuring Bandwidth Profiles............................................................................262

17.4 Configuring Media Enhancement Profiles............................................................265

18 Control Network ..............................................................................................269

18.1 Configuring Media Realms...................................................................................269

18.2 Configuring Remote Media Subnets....................................................................272

18.3 Configuring SRDs ................................................................................................275

18.4 Configuring SIP Interfaces...................................................................................279

18.5 Configuring IP Groups..........................................................................................283

18.6 Configuring Proxy Sets ........................................................................................296

19 SIP Definitions.................................................................................................303

19.1 Configuring SIP Parameters ................................................................................303

19.2 Configuring Registration Accounts.......................................................................303

19.2.1 Regular Registration Mode....................................................................................306

19.2.2 Single Registration for Multiple Phone Numbers using GIN..................................306

19.3 Configuring Proxy and Registration Parameters..................................................307

19.3.1 SIP Message Authentication Example ..................................................................309

19.4 Configuring SIP Message Manipulation...............................................................311

19.5 Configuring SIP Message Policy Rules................................................................317

20 Coders and Profiles ........................................................................................321

20.1 Configuring Default Coders..................................................................................321

20.2 Configuring Coder Groups...................................................................................325

20.3 Configuring Tel Profile..........................................................................................326

20.4 Configuring IP Profiles .........................................................................................329

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Gateway Application .............................................................................................357

21 Introduction .....................................................................................................359

22 Digital PSTN.....................................................................................................361

22.1 Configuring Trunk Settings...................................................................................361

22.2 TDM and Timing...................................................................................................363

22.2.1 Configuring TDM Bus Settings..............................................................................363

22.2.2 Configuring Digital PCM Settings..........................................................................364

22.2.3 Configuring System Timing ...................................................................................364

22.2.4 Clock Settings........................................................................................................365

22.2.4.1 Recovering Clock from PSTN Line Interface........................................ 365

22.2.4.2 Configuring BITS Synchronization Mode.............................................. 366

22.2.4.3 Configuring Internal Clock as Clock Source ......................................... 367

22.3 Configuring Transmission Settings ......................................................................368

22.4 Configuring CAS State Machines.........................................................................369

22.5 Configuring Digital Gateway Parameters.............................................................371

22.6 Tunneling Applications.........................................................................................373

22.6.1 TDM Tunneling......................................................................................................373

22.6.1.1 DSP Pattern Detector............................................................................ 376

22.6.2 QSIG Tunneling.....................................................................................................376

22.7 ISDN Non-Facility Associated Signaling (NFAS).................................................378

22.7.1 NFAS Interface ID..................................................................................................378

22.7.2 Working with DMS-100 Switches ..........................................................................379

22.7.3 Creating an NFAS-Related Trunk Configuration...................................................380

22.7.4 Performing Manual D-Channel Switchover in NFAS Group..................................380

22.8 ISDN Overlap Dialing...........................................................................................381

22.8.1 Collecting ISDN Digits and Sending Complete Number in SIP.............................381

22.8.2 Interworking ISDN Overlap Dialing with SIP According to RFC 3578...................382

22.9 Redirect Number and Calling Name (Display).....................................................383

22.10SDH / SONET Configuration................................................................................383

22.10.1Trunk Numbering (KLM Numbering) .....................................................................385

22.10.1.1E1 Trunk Enumeration (SDH Mappings)............................................... 385

22.10.1.2T1 Trunk Enumeration (Sonet Mappings)............................................. 387

23 Trunk Group ....................................................................................................391

23.1 Configuring Trunk Group Table............................................................................391

23.2 Configuring Trunk Group Settings........................................................................393

24 Manipulation....................................................................................................399

24.1 Configuring General Settings...............................................................................399

24.2 Configuring Source/Destination Number Manipulation Rules..............................399

24.3 Manipulating Number Prefix.................................................................................406

24.4 SIP Calling Name Manipulations..........................................................................407

24.5 Configuring Redirect Number IP to Tel................................................................410

24.6 Manipulating Redirected and Diverted Numbers for Call Diversion.....................414

24.7 Mapping NPI/TON to SIP Phone-Context............................................................415

24.8 Configuring Release Cause Mapping ..................................................................417

24.8.1 Fixed Mapping of SIP Response to ISDN Release Reason..................................419

24.8.2 Fixed Mapping of ISDN Release Reason to SIP Response..................................421

24.8.3 Reason Header......................................................................................................424

24.9 Numbering Plans and Type of Number................................................................424

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User's Manual Contents

25 Routing.............................................................................................................427

25.1 Configuring General Routing Parameters............................................................427

25.2 Configuring Outbound IP Routing Table..............................................................427

25.3 Configuring Inbound IP Routing Table.................................................................437

25.4 IP Destinations Connectivity Feature...................................................................442

25.5 Alternative Routing for Tel-to-IP Calls..................................................................443

25.5.1 Alternative Routing Based on IP Connectivity.......................................................443

25.5.2 Alternative Routing Based on SIP Responses......................................................444

25.5.3 Alternative Routing upon SIP 3xx with Multiple Contacts......................................447

25.5.4 PSTN Fallback.......................................................................................................447

25.6 Alternative Routing for IP-to-Tel Calls..................................................................448

25.6.1 Alternative Routing to Trunk upon Q.931 Call Release Cause Code ...................448

25.6.2 Alternative Routing to an IP Destination upon a Busy Trunk ................................449

25.6.3 Alternative Routing upon ISDN Disconnect...........................................................451

26 Configuring DTMF and Dialing.......................................................................453

26.1 Dialing Plan Features...........................................................................................454

26.1.1 Digit Mapping.........................................................................................................454

26.1.2 External Dial Plan File ...........................................................................................455

27 Configuring Supplementary Services ...........................................................457

27.1 Call Hold and Retrieve.........................................................................................458

27.2 Call Transfer.........................................................................................................458

27.2.1 Consultation Call Transfer.....................................................................................458

27.2.2 Consultation Transfer for QSIG Path Replacement..............................................459

27.2.3 Blind Call Transfer.................................................................................................459

27.3 Call Forward.........................................................................................................460

27.4 Message Waiting Indication.................................................................................460

27.5 Emergency E911 Phone Number Services..........................................................462

27.5.1 Pre-empting Existing Calls for E911 IP-to-Tel Calls..............................................462

27.5.2 Enhanced 9-1-1 Support for Lync Server 2010.....................................................462

27.5.2.1 About E9-1-1 Services .......................................................................... 463

27.5.2.2 Microsoft Lync Server 2010 and E9-1-1................................................ 464

27.5.2.3 AudioCodes ELIN Gateway for Lync Server 2010 E9-1-1 Calls to PSTN

467

27.5.2.4 Configuring AudioCodes ELIN Gateway............................................... 472

27.6 Multilevel Precedence and Preemption................................................................475

27.6.1 MLPP Preemption Events in SIP Reason Header ................................................477

27.6.2 Precedence Ring Tone..........................................................................................478

27.7 Detecting Collect Calls.........................................................................................478

27.8 Advice of Charge Services for Euro ISDN ...........................................................478

27.9 Configuring Charge Codes...................................................................................480

27.10Configuring Voice Mail.........................................................................................482

Session Border Controller Application................................................................483

28 SBC Overview..................................................................................................485

28.1 SIP Network Definitions .......................................................................................486

28.2 SIP Dialog Initiation Process................................................................................486

28.3 User Registration .................................................................................................489

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28.3.1 Initial Registration Request Processing.................................................................489

28.3.2 SBC Users Registration Database........................................................................490

28.3.3 Routing using Users Registration Database..........................................................490

28.3.4 Registration Refreshes..........................................................................................490

28.3.5 Registration Restriction Control.............................................................................491

28.4 SBC Media Handling............................................................................................492

28.4.1 Media Anchoring without Transcoding (Transparent) ...........................................493

28.4.2 Media Anchoring with Transcoding .......................................................................494

28.4.3 No Media Anchoring..............................................................................................495

28.4.4 Transcoding Modes...............................................................................................497

28.4.5 Restricting Coders.................................................................................................498

28.4.6 Coder Transcoding................................................................................................498

28.4.7 Prioritizing Coder List in SDP Offer.......................................................................500

28.4.8 SRTP-RTP and SRTP-SRTP Transcoding ...........................................................500

28.4.9 Multiple RTP Media Streams per Call Session .....................................................501

28.4.10Interworking DTMF Methods .................................................................................501

28.5 Fax Negotiation and Transcoding........................................................................502

28.6 Limiting SBC Call Duration...................................................................................502

28.7 SBC Authentication..............................................................................................502

28.7.1 SIP Authentication Server Functionality................................................................503

28.7.2 User Authentication based on RADIUS.................................................................504

28.8 Interworking SIP Signaling...................................................................................504

28.8.1 Interworking SIP 3xx Redirect Responses............................................................504

28.8.1.1 Resultant INVITE Traversing Device .................................................... 504

28.8.1.2 Local Handling of SIP 3xx..................................................................... 506

28.8.2 Interworking SIP Diversion and History-Info Headers...........................................506

28.8.3 Interworking SIP REFER Messages......................................................................507

28.8.4 Interworking SIP PRACK Messages .....................................................................508

28.8.5 Interworking SIP Session Timer............................................................................508

28.8.6 Interworking SIP Early Media................................................................................508

28.8.7 Interworking SIP re-INVITE Messages..................................................................511

28.8.8 Interworking SIP UPDATE Messages...................................................................511

28.8.9 Interworking SIP re-INVITE to UPDATE................................................................511

28.8.10Interworking Delayed Offer....................................................................................511

28.8.11Interworking Call Hold............................................................................................512

28.9 Call Survivability...................................................................................................512

28.9.1 Auto-Provisioning of Subscriber-Specific Information for BroadWorks Server for

Survivability.........................................................................................................................512

28.9.2 BroadSoft's Shared Phone Line Call Appearance for SBC Survivability...............513

28.9.3 Call Survivability for Call Centers..........................................................................514

28.9.4 Survivability Mode Display on Aastra IP Phones ..................................................517

28.10Call Forking..........................................................................................................517

28.10.1Initiating SIP Call Forking ......................................................................................517

28.10.2SIP Forking Initiated by SIP Proxy Server.............................................................518

28.10.3Call Forking-based IP-to-IP Routing Rules............................................................518

28.11Alternative Routing on Detection of Failed SIP Response...................................519

28.12Active SBC Call Continuity during HA Blade Switchover.....................................519

29 SBC Configuration..........................................................................................521

29.1 Configuring General Settings...............................................................................521

29.1.1 Interworking Dialog Information in SIP NOTIFY Messages ..................................521

29.2 Configuring Admission Control.............................................................................523

29.3 Configuring Allowed Audio Coder Groups ...........................................................527

29.4 Configuring Allowed Video Coder Groups ...........................................................528

29.5 Routing SBC ........................................................................................................529

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