Hello, I have tested video with FreeSWITCH and found out that video with SRTP is broken. Without SRTP the video works fine. I have attached a capture of the SIP SDP negotiation. I am pretty new to FreeSWITCH so I don't know where exacly the problem is. It looks like FreeSWITCH does not understand m=video 2166 RTP/SAVP 125 126 and trims the additional parameters for it. You can see this in the last line of the log. Can somebody please check it? Thank You, Artem Makhutov INVITE sip:1001@mydomain.org SIP/2.0 Via: SIP/2.0/UDP 192.168.10.224:36188;branch=z9hG4bK-d8754z-370a5b6ed6093a0b-1---d8754z-;rport Max-Forwards: 70 Contact: <sip:1000@192.168.10.224:36188> To: "1001"<sip:1001@mydomain.org> From: "1000"<sip:1000@mydomain.org>;tag=81370820 Call-ID: MWJjZjUyNWE0ZTAxNzk2MjQ1MmJhOGQ1MzVkN2U4Njc. CSeq: 2 INVITE Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO Content-Type: application/sdp Proxy-Authorization: Digest username="1000",realm="mydomain.org",nonce="2e358562-1b1c-48db-b5ac-30184bf50bdc",uri="sip:1001@mydomain.org",response="a1a8d0af96473701e29164539053acfc",cnonce="79768bcc6cba39eb3ea53dca7efbc844",nc=00000001,qop=auth,algorithm=MD5 User-Agent: eyeBeam release 1101l Content-Length: 977 v=0 o=- 9 2 IN IP4 192.168.10.224 s=CounterPath eyeBeam 1.5 c=IN IP4 192.168.10.224 t=0 0 m=audio 24832 RTP/SAVP 8 101 a=alt:1 1 : uAe2P6iR j3nStAHd 192.168.10.224 24832 a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:dEf9n0TRvJa69HPNvBztLXiIpzQZBXLEVqAWrasz a=crypto:2 AES_CM_128_HMAC_SHA1_32 inline:0lqyUnCN1VCD139FjAyWfMpcx818SFR7gV8FHEGF a=fmtp:101 0-15 a=rtpmap:101 telephone-event/8000 a=sendrecv a=x-rtp-session-id:2CE064FD329D4469BE4B7B207D91F854 m=video 2166 RTP/SAVP 125 126 a=alt:1 1 : nUHelaPs CFWlR1JP 192.168.10.224 2166 a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:/eFXXGOOsbZDjZ8kdd0+Xe05yD0+9zMmqMVVU1ep a=crypto:2 AES_CM_128_HMAC_SHA1_32 inline:LaFls9X+TF/0Qj2P4DqwjccTcB+tTssk+nwe+S67 a=fmtp:125 profile-level-id=42e00a; max-br=888; max-mbps=11880 a=fmtp:126 profile-level-id=42e01e; packetization-mode=1; max-br=888; max-mbps=11880 a=rtpmap:125 H264/90000 a=rtpmap:126 H264/90000 a=sendrecv a=x-rtp-session-id:0C4E8C6261F341F8A0F5F2DADBDD16E6 SIP/2.0 100 Trying Via: SIP/2.0/UDP 192.168.10.224:36188;branch=z9hG4bK-d8754z-370a5b6ed6093a0b-1---d8754z-;rport=36188 From: "1000" <sip:1000@mydomain.org>;tag=81370820 To: "1001" <sip:1001@mydomain.org> Call-ID: MWJjZjUyNWE0ZTAxNzk2MjQ1MmJhOGQ1MzVkN2U4Njc. CSeq: 2 INVITE User-Agent: FreeSWITCH-mod_sofia/1.0.1-exported Content-Length: 0 SIP/2.0 180 Ringing Via: SIP/2.0/UDP 192.168.10.224:36188;branch=z9hG4bK-d8754z-370a5b6ed6093a0b-1---d8754z-;rport=36188 From: "1000" <sip:1000@mydomain.org>;tag=81370820 To: "1001" <sip:1001@mydomain.org>;tag=4Qp6tZyg66X4e Call-ID: MWJjZjUyNWE0ZTAxNzk2MjQ1MmJhOGQ1MzVkN2U4Njc. CSeq: 2 INVITE Contact: <sip:mod_sofia@192.168.10.2:5060;transport=udp> User-Agent: FreeSWITCH-mod_sofia/1.0.1-exported Accept: application/sdp Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE, SUBSCRIBE, NOTIFY, REFER, UPDATE, REGISTER, INFO, PUBLISH Supported: 100rel, timer, precondition, path, replaces Allow-Events: talk, presence, dialog, call-info, sla, include-session-description, presence.winfo, message-summary Content-Length: 0 SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.10.224:36188;branch=z9hG4bK-d8754z-370a5b6ed6093a0b-1---d8754z-;rport=36188 From: "1000" <sip:1000@mydomain.org>;tag=81370820 To: "1001" <sip:1001@mydomain.org>;tag=4Qp6tZyg66X4e Call-ID: MWJjZjUyNWE0ZTAxNzk2MjQ1MmJhOGQ1MzVkN2U4Njc. CSeq: 2 INVITE Contact: <sip:mod_sofia@192.168.10.2:5060;transport=udp> User-Agent: FreeSWITCH-mod_sofia/1.0.1-exported Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, PRACK, MESSAGE, SUBSCRIBE, NOTIFY, REFER, UPDATE, REGISTER, INFO, PUBLISH Supported: 100rel, timer, precondition, path, replaces Allow-Events: talk, presence, dialog, call-info, sla, include-session-description, presence.winfo, message-summary Session-Expires: 120;refresher=uas Min-SE: 120 Content-Type: application/sdp Content-Disposition: session Content-Length: 403 v=0 o=FreeSWITCH 4152559439128132736 353175461369499874 IN IP6 2001:6f8:115f:1:213:8fff:fee9:e263 s=FreeSWITCH c=IN IP4 192.168.10.2 t=0 0 a=sendrecv m=audio 29416 RTP/SAVP 8 101 13 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=rtpmap:13 CN/8000 a=ptime:20 a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:SfGg1pL13i5Ak878yCV/6awj282NgAifEqPoswar m=video 0 RTP/SAVP 19