I've had an open case for a very long time with Cisco.
I purchased two CUBE's with the intent to make VoIP call transfers via hookflash. These hookflashes are supported for FXS-SIP (via sip-ua hookflash-info command) and SIP-FXS (via DSAPP tcl script) scenarios but I've been told by Cisco support that anything listed for SIP-SIP hookflash transfers is not yet supported by the CUBE.
I was told it could be done via a custom tcl script but that is something not supported by tac and you will have to go to Cisco DevNet.
This is my first post in DevNet, but I hope to be in contact with some clever and generous individuals who could give me some of their time to help me resolve this issue.
I am running IOS 15.3(3)M1 or later on my CUBEs, I've done basic tclsh ping test scripts, but I'm not sure how to tackle producing a script that will constantly execute the pass-through of SIP INFO hookflash messages by the CUBE using a tcl script.
INFO message to be handled by the CUBE but the CUBE is rejecting it. I attached a trace of the logs from the CUBE for more detail.
Via: SIP/2.0/UDP 192.168.33.103:5060;branch=z9hG4bK1694924683
CSeq: 104 INFO
Content-Type: application/broadsoft ;version=1.0
I've also tried to allow unsupported messages to be passed-through the 2901 CUBE, but it did not seem to matter.
voice service voip
pass-thru content unsupp
Finally, this is my first attempt at using DevNet, I hope to become a contributing member asap.
Thanks for you time.
I hope you are looking for TCL IVR script for transfer if so you can refer below TCL script.
if you need any help with TCL IVR script you need to raise Dev Net Support case, for more information you can refer below link.