I have the following section included everywhere - in sip.conf and in users.conf for both my SIP-phone and provider’s trunk:
disallow = all allow = alaw allow = ulaw allow = g729
G.729 is enabled in my SIP-phone, of course.
The problem that I see only G.711 in my SDP offer when I’m making an outgoing call to my provider:
m=audio 18094 RTP/AVP 8 0
What’s wrong? How can I use G.729 passthrough?