Hi Benny, I have a problem that no media are established, even though the SDP-negotiation was successful. PJSIP is given an SDP-offer containing 2 media-descriptions, of which the first (SRTP) is rejected with port=0, and the 2nd is accepted with port 49000 : The SDP offer to PJSIP is: v=0 o=- 1197975037 1197975037 IN IP4 192.168.9.74 s=Polycom IP Phone c=IN IP4 192.168.9.74 t=0 0 m=audio 49200 RTP/SAVP 8 0 9 18 96 a=sendrecv a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:tMuyik1Aiiq9p4DQVHhAASSWDEP7K7wo0cICOn39 a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:9 G722/8000 a=rtpmap:18 G729/8000 a=rtpmap:96 telephone-event/8000 m=audio 49200 RTP/AVP 8 0 9 18 96 a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:9 G722/8000 a=rtpmap:18 G729/8000 a=rtpmap:96 telephone-event/8000 The SDP answer from PJSIP is: v=0 o=- 3406967846 3406967847 IN IP4 192.168.9.35 s=pjmedia c=IN IP4 192.168.9.35 t=0 0 a=X-nat:0 m=audio 0 RTP/SAVP 8 0 9 18 96 a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:tMuyik1Aiiq9p4DQVHhAASSWDEP7K7wo0cICOn39 a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:9 G722/8000 a=rtpmap:18 G729/8000 a=rtpmap:96 telephone-event/8000 a=inactive m=audio 49000 RTP/AVP 8 101 a=rtcp:49001 IN IP4 192.168.9.35 a=rtpmap:8 PCMA/8000 a=sendrecv a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 I have found: pjmedia_session_info_from_sdp() only considers the first stream, and passes this to pjmedia_stream_info_from_sdp() which marks this as an "Inactive stream" with "si->dir = PJMEDIA_DIR_NONE;", because "local_m->desc.port == 0". Call-stack : - inv_negotiate_sdp - pjsua_call_on_media_update - pjsua_media_channel_update - pjmedia_session_info_from_sdp - pjmedia_stream_info_from_sdp Further-on this makes pjsua_media_channel_update fail, because it interprets the condition "sess_info.stream_info[0].dir == PJMEDIA_DIR_NONE" as if the call was on-hold. Can you advice me how to solve this? Regards, Arie Velthoen
