Hi; I am still struggling with adding h263 codec.. I have a problem at the below code ; status = pjmedia_stream_create(endpt, session->pool, &session->stream_info[i], (transports?transports[i]:NULL), session, &session->stream[i]); if (status == PJ_SUCCESS){ status = pjmedia_stream_start(session->stream[i]); } As far as i examine the code i need to create two different rtp stream for both audio and video.. I check transports[1] (which is for the video stream) and it was null .. So i set it to transports[0] for both streams .. but than i had a problem with PJ_ASSERT_RETURN(!udp->attached, PJ_EINVALIDOP); Do you advice to create two calls as if in the pjsua_media_channel_update function or handling everything inside the somewhere else :) not sure where.. Thanks advance muge -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20081007/cd285dd6/attachment.html>