Table Of Contents
SIP History INFO Header Support
SIP History INFO Header Support
The SIP History-info Header Support feature provides support for the history-info header in SIP INVITE messages only. The SIP gateway generates history information in the INVITE message for all forwarded and transferred calls. The history-info header records the call or dialog history. The receiving application uses the history-info header information to determine how and why the call has reached it.Additional information on the SIP History INFO feature is available in the SIP: History-info Header Support section of the "Cisco IOS SIP Configuration Guide, Release 15.1"
Prerequisites
Cisco Unified Border Element
•Cisco IOS Release 12.4(22)T or a later release must be installed and running on your Cisco Unified Border Element.
Cisco Unified Border Element (Enterprise)
•Cisco IOS XE Release 3.1or a later release must be installed and running on your Cisco ASR 1000 Series Router.
Configuring SIP History INFO
To configure the SIP History INFO feature, see the Configuring SIP History-info Header Support section of the "Cisco IOS SIP Configuration Guide, Release 15.1"