Name: AudioCodes Mediant 2000
Brand: AudioCodes
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Version 6.6 361 Mediant 2000

User's Manual 27. Overview

27.2 SAS Routing

This section provides flowcharts describing the routing logic for SAS in normal and

emergency states.

27.2.1 SAS Routing in Normal State

The flowchart below displays the routing logic for SAS in normal state for INVITE

messages received from UAs:

Figure 27-5: Flowchart of INVITE from UA's in SAS Normal State

Default Chapter3
- Table of Contents3
- Abbreviations and Terminology15
- Customer Support15
- Weee Eu Directive15
- Related Documentation16
1 Overview19
- SIP Overview20
Getting Started with Initial Connectivity25
2 Assigning the OAMP LAN IP Address27
- Web Interface27
- Bootp/Tftp Server29
- Cli30
Management Tools31
3 Introduction33
4 Web-Based Management35
- Getting Acquainted with the Web Interface35
- Viewing the Home Page57
  - Assigning a Port Name59
  - Switching between Modules59
- Configuring Web User Accounts60
  - Basic User Accounts Configuration61
  - Advanced User Accounts Configuration63
- Displaying Login Information Upon Login66
- Configuring Web Security Settings67
- Web Login Authentication Using Smart Cards68
- Configuring Web and Telnet Access List68
- Mediant69
- Configuring RADIUS Settings70
5 CLI-Based Management71
- Enabling CLI Using Telnet71
- Enabling CLI Using SSH and RSA Public Key71
- Establishing a CLI Session73
- CLI Commands74
6 SNMP-Based Management81
- Configuring SNMP Community Strings81
- Configuring SNMP Trap Destinations82
- Configuring SNMP Trusted Managers83
- Configuring SNMP V3 Users84
7 EMS-Based Management87
8 INI File-Based Management89
- INI File Format89
- Loading an Ini File91
- Modifying an Ini File92
- Secured Encoded Ini File92
General System Settings93
9 Configuring Certificates95
- Replacing the Device's Certificate95
- Loading a Private Key96
- Mutual TLS Authentication98
- Configuring Certificate Revocation Checking (OCSP)98
- Self-Signed Certificates100
- Loading Certificate Chain for Trusted Root100
10 Date and Time101
- Configuring Date and Time Manually101
- Automatic Date and Time through SNTP Server101
General Voip Configuration103
11 Network105
- Ethernet Interface Configuration105
- Ethernet Interface Redundancy105
- Configuring IP Network Interfaces106
- Configuring the IP Routing Table115
- Configuring Quality of Service118
- Disabling ICMP Redirect Messages120
- Dns120
  - Configuring the Internal DNS Table120
  - Configuring the Internal SRV Table122
- Configuring NFS Settings123
- Network Address Translation Support125
  - Device Located Behind NAT125
  - Remote UA Behind NAT129
    - First Incoming Packet Mechanism129
    - No-Op Packets130
- Robust Receipt of Media Streams130
- Multiple Routers Support131
- IP Multicasting131
12 Security133
- Configuring Firewall Settings133
- Configuring General Security Settings137
- Ipsec and Internet Key Exchange137
- Intrusion Detection System144
13 Media153
- Configuring Voice Settings153
- Fax and Modem Capabilities155
- Configuring RTP/RTCP Settings165
- Configuring IP Media Settings171
  - Answer Machine Detector (AMD)171
  - Automatic Gain Control (AGC)175
- Configuring DSP Templates176
- Configuring Media Realms177
  - Configuring Bandwidth Management Per Media Realm179
- Configuring Media Security181
14 Services183
- Routing Based on LDAP Active Directory Queries183
- Least Cost Routing192
  - Overview192
  - Configuring LCR194
15 Enabling Applications199
16 Control Network201
- Configuring SRD Table201
- Configuring SIP Interface Table202
- Configuring IP Groups204
- Configuring Proxy Sets Table209
17 SIP Definitions215
- Configuring SIP Parameters215
- Configuring Account Table215
- Configuring Proxy and Registration Parameters218
  - SIP Message Authentication Example219
- Configuring SIP Message Manipulation221
- Configuring SIP Message Policy Rules225
18 Coders and Profiles229
- Configuring Coders229
- Configuring Coder Groups232
- Configuring Tel Profile233
- Configuring IP Profiles235
Gateway and IP-To-IP Application241
19 Introduction243
20 IP-To-IP Routing Application245
- Theory of Operation246
- IP-To-IP Routing Configuration Example249
21 Digital PSTN261
- Configuring Trunk Settings261
- TDM and Timing263
  - Configuring TDM Bus Settings263
  - Clock Settings264
    - Recovering Clock from PSTN Line Interface264
    - Configuring Internal Clock as Clock Source265
- Configuring CAS State Machines265
- Configuring Digital Gateway Parameters267
- Tunneling Applications268
  - TDM Tunneling268
    - DSP Pattern Detector271
  - QSIG Tunneling271
- ISDN Non-Facility Associated Signaling (NFAS)272
- ISDN Overlap Dialing275
- Redirect Number and Calling Name (Display)277
22 Trunk Group279
- Configuring Trunk Group Table279
- Configuring Trunk Group Settings281
23 Manipulation287
- Configuring General Settings287
- Configuring Source/Destination Number Manipulation Rules287
- Manipulating Number Prefix293
- SIP Calling Name Manipulations294
- Configuring Redirect Number IP to Tel296
- Manipulating Redirected and Diverted Numbers for Call Diversion300
- Mapping NPI/TON to SIP Phone-Context301
- Configuring Release Cause Mapping302
- Numbering Plans and Type of Number307
24 Routing309
- Configuring General Routing Parameters309
- Configuring Outbound IP Routing Table309
- Configuring Inbound IP Routing Table317
- IP Destinations Connectivity Feature320
- Alternative Routing for Tel-To-IP Calls322
- Alternative Routing for IP-To-Tel Calls325
  - Alternative Routing to Trunk Upon Q.931 Call Release Cause Code325
  - Alternative Routing to an IP Destination Upon a Busy Trunk326
25 Configuring DTMF and Dialing329
- Dialing Plan Features330
  - Digit Mapping330
  - External Dial Plan File332
26 Configuring Supplementary Services333
- Call Hold and Retrieve334
- Call Transfer334
- Call Forward336
- Message Waiting Indication336
- Emergency E911 Phone Number Services338
  - Pre-Empting Existing Calls for E911 IP-To-Tel Calls338
  - Enhanced 9-1-1 Support for Lync Server 2010338
- Multilevel Precedence and Preemption349
  - MLPP Preemption Events in SIP Reason Header352
  - Precedence Ring Tone353
- Advice of Charge Services for Euro ISDN353
- Configuring Voice Mail354
Stand-Alone Survivability Application355
27 Overview357
- SAS Operating Modes357
  - SAS Outbound Mode358
    - Normal State358
    - Emergency State358
  - SAS Redundant Mode359
- SAS Routing361
  - SAS Routing in Normal State361
  - SAS Routing in Emergency State363
28 SAS Configuration365
- General SAS Configuration365
  - Enabling the SAS Application365
  - Configuring Common SAS Parameters366
- Configuring SAS Outbound Mode368
- Configuring SAS Redundant Mode369
- Configuring Gateway Application with SAS369
  - Gateway with SAS Outbound Mode370
  - Gateway with SAS Redundant Mode371
- Advanced SAS Configuration372
- Viewing Registered SAS Users384
29 SAS Cascading385
IP Media Capabilities387
30 Transcoding Using Third-Party Call Control389
- Using RFC 4117389
- Mediant390
Maintenance391
31 Basic Maintenance393
- Resetting the Device393
- Remotely Resetting Device Using SIP NOTIFY394
- Locking and Unlocking the Device395
- Saving Configuration396
32 Restarting a B-Channel397
33 Software Upgrade399
- Loading Auxiliary Files399
- Software License Key415
  - Obtaining the Software License Key File415
  - Installing the Software License Key416
    - Installing Software License Key Using Web Interface417
    - Installing Software License Key Using Bootp/Tftp418
- Software Upgrade Wizard419
- Backing up and Loading Configuration File422
34 Automatic Update423
- Bootp Request and DHCP Discovery Upon Device Initialization423
- Obtaining IP Address Automatically Using DHCP425
- Configuring Automatic Update425
- Automatic Configuration Methods427
- Loading Files Securely (Disabling TFTP)431
- Remotely Triggering Auto Update Using SIP NOTIFY432
35 Restoring Factory Defaults433
- Restoring Defaults Using CLI433
- Restoring Defaults Using an Ini File434
Status, Performance Monitoring and Reporting435
36 System Status437
- Viewing Device Information437
- Viewing Ethernet Port Information438
37 Carrier-Grade Alarms439
- Viewing Active Alarms439
- Viewing Alarm History439
38 Performance Monitoring441
- Viewing MOS Per Media Realm441
- Viewing Trunk Utilization442
39 Voip Status445
- Viewing Trunks & Channels Status445
- Viewing NFAS Groups and D-Channel Status447
- Viewing Active IP Interfaces448
- Viewing Performance Statistics449
- Viewing Call Counters449
- Viewing Registered Users451
- Viewing Registration Status452
- Viewing Call Routing Status453
- Viewing IP Connectivity454
40 Reporting Information to External Party457
- RTP Control Protocol Extended Reports (RTCP XR)457
- Generating Call Detail Records460
  - Configuring CDR Reporting460
  - CDR Field Description461
    - CDR Fields for Gateway/Ip-To-IP Application461
    - Release Reasons in CDR464
- Configuring RADIUS Accounting467
- Event Notification Using X-Detect Header470
- Querying Device Channel Resources Using SIP OPTIONS472
Diagnostics473
41 Syslog and Debug Recordings475
- Syslog Message Format475
- Configuring Syslog Settings479
- Configuring Debug Recording480
- Filtering Syslog Messages and Debug Recordings481
  - Filtering IP Network Traces483
- Viewing Syslog Messages484
- Collecting Debug Recording Messages485
- Mediant486
42 Self-Testing487
43 Testing SIP Signaling Calls489
- Configuring Test Call Endpoints489
  - Starting, Stopping and Restarting Test Calls492
  - Viewing Test Call Statistics493
- Configuring DTMF Tones for Test Calls494
- Configuring Basic Test Call495
- Test Call Configuration Examples496
Appendix499
44 Dialing Plan Notation for Routing and Manipulation501
45 Configuration Parameters Reference503
- Networking Parameters503
- Management Parameters513
- Debugging and Diagnostics Parameters520
- Security Parameters528
- RADIUS Parameters539
- SIP Media Realm Parameters541
- Control Network Parameters542
  - IP Group, Proxy, Registration and Authentication Parameters542
  - Network Application Parameters552
- General SIP Parameters553
- Coders and Profile Parameters580
- Channel Parameters583
- Gateway and IP-To-IP Parameters593
- Least Cost Routing Parameters679
- LDAP Parameters680
- Standalone Survivability Parameters682
- IP Media Parameters687
- Auxiliary and Configuration File Name Parameters692
- Automatic Update Parameters693
46 DSP Templates695
47 Selected Technical Specifications697

AudioCodes Mediant 2000 User Manual

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Brand	AudioCodes
Model	Mediant 2000
Category	Gateway
Language	English