Hi, Can anybody guide me an API with which I can tell pjsip to use my own local ports (UDP) to be used for media? At the time of SDP negotiation, I read that I can get to know about active local SDP by calling pjmedia_sdp_neg_get_active_local(), and active remote SDP by calling pjmedia_sdp_neg_get_active_remote(). But for an outgoing call, I need to create custom SDP with just modifying local ports. Thus, Is there a way to tell PJSIP not to open its ports for media, and use custom ports created by application? Thanks Bhavesh