Configuring Sending 300 Multiple Choice Support - Cisco CP-7911G-CH1 System Administrator Manual

Appendix A: Configuring Cisco Unified SIP SRST Features Using Redirect Mode
Command or Action
Step 4
application application-name
Example:
Router(config-dial-peer)# application session
Step 5
redirect ip2ip
Example:
Router(config-dial-peer)# redirect ip2ip
Step 6
end
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.
2.
3.
4.
5.
6.
OL-13143-04
enable
configure terminal
voice service voip
sip
redirect contact order [best-match | longest-match]
end
How to Configure Cisco Unified SIP SRST Features Using Redirect Mode
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.
Cisco Unified SCCP and SIP SRST System Administrator Guide
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