I'm currently trying to send custom headers over SIP, so in Accordance to Cisco VoiceXML Programmer’s Guide it's possible to send custom header during SIP (Invite while transferring a call), but I can get this to work. Has anyone faced this issue? Any suggestions?
I'm attacching a file with some debugs.
Paul Tindall posted a custom Transfer element that included settings where you can add things to the sip header.
It's attached here.