Version 5.8 463 October 2009
SIP User's Manual 9. IP Telephony Capabilities
The flowchart below illustrates the SBC classification process:
Figure 9-5: Classification Process (Identifying IP Group or Rejecting Call)
9.2.3.3 SBC IP-to-IP Routing
The device's SBC application employs a comprehensive and flexible routing scheme:
îš„ Routing rules according to Layer 3/4 and SIP characteristics
îš„ Routing to multiple destination types:
• Request-URI (of incoming SIP dialog initiating requests)
• Specific destination IP address
• Specific FQDN (NAPTR/SRV/A-Record Resolutions)
• Registered Contact in device's database (User-type IP Groups)
• IP Group (address defined for Proxy Set associated with the IP Group), with the
ability of load balancing and redundancy