Table Of Contents

Call Routing logic on Cisco UBE using the History-info Header

Configuring Call Routing Logic on Cisco UBE using the History-info Header Globally

Configuring all Routing Logic on Cisco UBE using the History-info Header at the Dial-Peer Level

Call Routing logic on Cisco UBE using the History-info Header

The history-info header has the call or dialog history information. The receiving application uses the history-info header information to determine how and why the call has reached it. SIP IOS GW does not utilize this information in History-Info header. The information stored in the History-Info headers can be used to bypass the dial-peers that were already tried during the course of a call, ensuring that the call is not being redirected again to the same target. The called-numbers and host portion of request URI in History-Info headers will be compared with the matching dial-peers, if incase the comparison succeeds, then those dial-peers will be bypassed.

This section contains the following procedures:

•Configuring Call Routing Logic on Cisco UBE using the History-info Header Globally

•Configuring all Routing Logic on Cisco UBE using the History-info Header at the Dial-Peer Level

Configuring Call Routing Logic on Cisco UBE using the History-info Header Globally

Perform this task to configure call routing on history-info header at a global level in SIP configuration (conf-serv-sip) mode.

SUMMARY STEPS

1. enable

2. configure terminal

3. voice service voip

4. sip

5. call route history-info

6. exit

DETAILED STEPS

	Command or Action	Purpose
Step 1	enable Example: Router> enable	Enters privileged EXEC mode, or other security level set by a system administrator. •Enter your password if prompted.
Step 2	configure terminal Example: Router# configure terminal	Enters global configuration mode.
Step 3	voice service voip Example: Router(config)# voice service voip	Enters voice service VoIP configuration mode.
Step 4	sip Example: Router(conf-voi-serv)# sip	Enters SIP configuration mode.
Step 5	call route history-info Example: Router(conf-serv-sip)# call-route history-info	Configures call-route history-info header support globally.
Step 6	exit Example: Router(conf-serv-sip)# exit	Exits the current mode.

Configuring all Routing Logic on Cisco UBE using the History-info Header at the Dial-Peer Level

Perform this task to configure call routing on history-info header support at the dial-peer level, in dial peer voice configuration (config-dial-peer) mode.

SUMMARY STEPS

1. enable

2. configure terminal

3. dial-peer voice tag voip

4. voice-class sip call-route history-info

5. exit

DETAILED STEPS

	Command or Action	Purpose
Step 1	enable Example: Router> enable	Enters privileged EXEC mode, or other security level set by a system administrator. •Enter your password if prompted.
Step 2	configure terminal Example: Router# configure terminal	Enters global configuration mode.
Step 3	dial-peer voice tag voip Example: Router(config)# dial-peer voice 2 voip	Enters dial peer VoIP configuration mode.
Step 4	voice-class sip call-route history-info Example: Router(config-dial-peer)# voice-class sip call-route history-info	Configures call-route history-info header support for a dial peer.
Step 5	exit Example: Router(config-dial-peer)# exit	Exits the current mode.