We have written a softphone in VB.NET that connects to a Asterisk PBX. In looking at the asterisk database, I see that there is a UNIQUEID for each call. But SIP seems to use a CALLID field as the key value for calls.
Does anyone know of a way to convert a UNIQUEUID to a CALLID or visa versa? Or is there a what to have the UNIQUEID passed in the SIP message? Or CALLID stored in the Asterisk Database?
Thanks in advance