Well if you look at the SDP you can look for "image" usually but thats not something I think you can see PRE call setup. /b On Oct 13, 2009, at 7:39 PM, Dome Charoenyost wrote:

Dear all,

Is posible to check T.38 in sip header? i want to disconnect call when T.38 not support in gateway and try next gateway

BG

Dome C.