Cisco CP-7911G-CH1 Administration Guide - Page 277

Appendix A: Configuring Cisco Unified SIP SRST Features Using Redirect Mode How to Configure Cisco Unified SIP SRST Features Using Redirect Mode Step 4 Command or Action application application-name Example: Router(config-dial-peer)# application session Step 5 redirect ip2ip Step 6 Example: Router(config-dial-peer)# redirect ip2ip end Purpose Enables a specific application on a dial peer. • For SIP, the default Tool Command Language (Tcl) application (from the Cisco IOS image) is session and can be applied to both VoIP and POTS dial peers. • The application must support IP-to-IP redirection. Redirects SIP phone calls to SIP phone calls on a specific VoIP dial peer using the Cisco IOS voice gateway. Returns to privileged EXEC mode. Example: Router(config-dial-peer)# end Configuring Sending 300 Multiple Choice Support Prior to Cisco IOS Release 12.2(15)ZJ, when a call was redirected, the SIP gateway would send a 302 Moved Temporarily message. The first longest match route on a gateway (dial-peer destination pattern) was used in the Contact header of the 302 message. With Release 12.2(15)ZJ, if multiple routes to a destination exist for a redirected number (multiple dial peers are matched), the SIP gateway sends a 300 Multiple Choice message, and the multiple routes in the Contact header are listed. The configuration below allows users to choose the order in which the routes appear in the Contact header. SUMMARY STEPS 1. enable 2. configure terminal 3. voice service voip 4. sip 5. redirect contact order [best-match | longest-match] 6. end OL-13143-04 Cisco Unified SCCP and SIP SRST System Administrator Guide 277