30.8.10 Interworking Delayed Offer ....................................................................................448
30.8.11 Interworking Call Hold ............................................................................................449
30.9 Call Survivability ................................................................................................... 449
30.9.1 Auto-Provisioning of Subscriber-Specific Information for BroadWorks Server for
Survivability.........................................................................................................................449
30.9.2 BroadSoft's Shared Phone Line Call Appearance for SBC Survivability...............450
30.9.3 Call Survivability for Call Centers ..........................................................................451
30.9.4 Survivability Mode Display on Aastra IP Phones ..................................................453
30.10 Call Forking .......................................................................................................... 454
30.10.1 Initiating SIP Call Forking ......................................................................................454
30.10.2 SIP Forking Initiated by SIP Proxy Server .............................................................454
30.11 Alternative Routing on Detection of Failed SIP Response ................................... 455
31 SBC Configuration .......................................................................................... 457
31.1 Configuring General Settings ............................................................................... 457
31.2 Configuring Admission Control ............................................................................. 458
31.3 Configuring Allowed Coder Groups ...................................................................... 460
31.4 Routing SBC ........................................................................................................ 461
31.4.1 Configuring Classification Rules ............................................................................462
31.4.1.1 Classification Based on URI of Selected Header Example ................... 466
31.4.2 Configuring Condition Rules ..................................................................................467
31.4.3 Configuring SBC IP-to-IP Routing .........................................................................468
31.4.4 Configuring Alternative Routing Reasons ..............................................................474
31.5 SBC Manipulations ............................................................................................... 475
31.5.1 Configuring IP-to-IP Inbound Manipulations ..........................................................477
31.5.2 Configuring IP-to-IP Outbound Manipulations .......................................................480
Cloud Resilience Package Application ................................................................485
32 CRP Overview .................................................................................................. 487
33 CRP Configuration .......................................................................................... 489
33.1 Enabling the CRP Application .............................................................................. 489
33.2 Configuring Call Survivability Mode ..................................................................... 490
33.3 Pre-Configured IP Groups .................................................................................... 491
33.4 Pre-Configured IP-to-IP Routing Rules ................................................................ 492
Stand-Alone Survivability Application .................................................................493
34 SAS Overview .................................................................................................. 495
34.1 SAS Operating Modes ......................................................................................... 495
34.1.1 SAS Outbound Mode .............................................................................................496
34.1.1.1 Normal State ......................................................................................... 496
34.1.1.2 Emergency State ................................................................................... 496
34.1.2 SAS Redundant Mode ...........................................................................................497
34.1.2.1 Normal State ......................................................................................... 498
34.1.2.2 Emergency State ................................................................................... 498
34.1.2.3 Exiting Emergency and Returning to Normal State .............................. 498
34.2 SAS Routing ......................................................................................................... 499
34.2.1 SAS Routing in Normal State ................................................................................499
34.2.2 SAS Routing in Emergency State ..........................................................................501