[Freeswitch-users] FreeSwithc not handling no SDP INVITE properly for video call

[George Lee]

Hi all,

I am having trouble with FreeSwitch handling late codec negotiation
for video calls.

The call logs are here:
http://pastebin.freeswitch.org/15481

I have this line:
<param name="enable-3pcc" value="proxy"/>
added to the external sip_profile for handling late codec negotiation.
I also have
  <X-PRE-PROCESS cmd="set" data="global_codec_prefs=PCMU,PCMA,H263"/>
  <X-PRE-PROCESS cmd="set" data="outbound_codec_prefs=PCMU,PCMA,H263"/>
in vars.xml for codec support list.

The initial INVITE contains no SDP for the caller and once the callee
answers the call, it sends the 200 OK with audio (pcma, pcmu) and
video (H263) codec capabilities. FreeSwitch forwards the 200 OK to the
caller without video codec capabilities. As a result, the video call
does not establish properly.

Could someone give me a pointer?

Thanks,
George