Hi,
I am currently performing attended transfers using the ARI Redirect. Functionally this works fine, but we would like to be able to recover from failure scenarios. The key is being able to react to the NOTIFY (200 OK), which could also return a 4xx, in which case we would like to recover.
RFC: RFC 5589 - Session Initiation Protocol (SIP) Call Control - Transfer
I’ve illustrated my setup below and the flow that is actually happening in Asterisk.
Note that the red arrow does not happen in Asterisk.
Is there a way to react to the Notify in any way.