Hi all Again, I've succesfully added H.264 codec support, but when i try to place a video call and the remote user send video stream , no video windows are automatically open by pjsua. Before the call setup i run this command on pjsua , to handle correctly the video: vid enable vid acc autorx on vid acc autotx on vid acc cap 1 (1 is my capt. device, maybe it could be different in other scenario) Once again, no video window are shown. I've also try to launch pjsua with --id sip:user at domain --video flag, but the problme persist. Any kind of help would be appreciated BR Davide