Hello, everyone! I'd like to ask question about video and audio ports. I analysed talking between PBX Asterisk and PJSIP client with using some sniffer. And What I see: <PJSIP IP><Asterisk IP> SIP/SDP 1514 audio 53058 RTP/AVP 98 97 99 104 3 0 8 9 96 Request: INVITE sip:6030@<Asterisk IP>, with session description <Asterisk IP><PJSIP IP> SIP 585 Status: 180 Ringing <Asterisk IP><PJSIP IP> SIP/SDP 1006 audio 19018 RTP/AVP 0 3 96,video 12606 RTP/AVP 97 96 Status: 200 OK, with session description <PJSIP IP><Asterisk IP> SIP/SDP 1514 audio 53058 RTP/AVP 0 96 Request: INVITE sip:6030@ <Asterisk IP>:5060, in-dialog, with session description Media Description, name and address: audio 53058 RTP/AVP 0 96 Media Type: audio Media Port: 53058 Media Protocol: RTP/AVP Media Format: ITU-T G.711 PCMU Media Format: DynamicRTP-Type-96 <PJSIP IP><Asterisk IP> H264 1409 PT=H264, SSRC=0x63E60BF0, Seq=30328, Time=72000 NAL unit - Coded slice of an IDR picture User Datagram Protocol, Src Port: 53064 (53064), Dst Port: 12606 (12606) ====================================== As I can see PJSIP uses port 53064 for sending video data. and Asterisk PBX uses 19018 port for receive audio and 12606 for receive video. QUESTION: how can I change port or range of ports for sending video to Asterisk PBX from my PJSIP client? P.S.: in case of using my PJSIP client inside some corporate networks with high corporate security rules, video is not showed by recipient SIP client. I want to control ports for sending data from my PJSIP client. Thank you. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120719/2f6b3a1f/attachment.html>