Here is another problem with incomng H323 calls from CUCM to Yate.
Call is drops with error:
20160401151811.946537 <sip/1:INFO> Not sending chan.rtp for empty media audio [0x7f6500006170]
20160401151811.946543 <sip/1:MILD> Removing failed SDP media 'audio' format '' from offer [0x7f6500006170]
And looks like CUCM doesn't send SDP info to Yate because of calls in H323. So in that way Yate have to generate some SDP info to FS to establish calls.
Full log available here:
http://pastebin.com/Nxvky2By