[Freeswitch-users] m=audio 5016 RTP/AVP 96 3 107 110 0 8 101., what does it mean?

m=audio 5016 RTP/AVP 96 3 107 110 0 8 101. Is there any digits represents sip codecs in subject?! Can any body describe this statement?! For example in response to one of my questions, Steven told me: "Your phone is not offering any codecs in the INVITE: m=audio 15696 RTP/AVP 19 The only payload type listed is 19 (comfort noise) - there are no codecs listed." base on my logs: http://pastebin.freeswitch.org/21084