Hi! I have a problem with RTP. PJSIP sends INVITE requests with all codecs to eyebeam. Eyebeam answers with multiple codecs (see below). Then pjsip decides to send RTP with ilbc, eyebeam sends with G711. This is IMO strange but sending and receiving different payload types is valid. But pjsip rejects incoming RTP: 14:36:27.718 strm0527367C Bad RTP pt 0 (expecting 117) 14:36:27.734 strm0527367C RTP status: badpt=-1, badssrc=0, dup=0, outorder=0, probation=0, restart=0 14:36:27.734 strm0527367C Bad RTP pt 0 (expecting 117) 14:36:27.765 strm0527367C RTP status: badpt=-1, badssrc=0, dup=0, outorder=0, probation=0, restart=0 I think this is a bug in pjsip. thanks Klaus U 2008/02/13 14:36:24.036837 4.5.6.3:1786 -> 1.2.3.160:5060 INVITE sip:klaus2 at otherdomain.com:6060 SIP/2.0. Via: SIP/2.0/UDP 10.10.0.51:1786;rport;branch=z9hG4bKPj6abbb11403354180b8a7617ad61505a9. Max-Forwards: 70. From: sip:klaus.darilion@xxxxxxxxxxxx;tag=0b39dc5fa7af406db588048d922ee881. To: sip:klaus2 at otherdomain.com. Contact: <sip:klaus.darilion at 10.10.0.51:1786>. Call-ID: e3e07d7bb5d843359cd3a8bfa6cd2607. CSeq: 13591 INVITE. Route: <sip:mydomain.com;transport=UDP;lr>. Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, SUBSCRIBE, NOTIFY, PUBLISH, REFER, MESSAGE, OPTIONS. Supported: replaces, 100rel, norefersub. User-Agent: QjSimple 0.3pre by ipcom.at. Proxy-Authorization: Digest username="klaus.darilion", realm="mydomain.com", nonce="47b2f38482d7aefbdca4c3b2fd2050cee6c5775e", uri="sip:klaus2 at otherdomain.com:6060", response="27b17a46d5fc1a9eddf954716138b48a". Content-Type: application/sdp. Content-Length: 598. . v=0. o=- 3411902183 3411902183 IN IP4 10.10.0.51. s=pjmedia. c=IN IP4 10.10.0.51. t=0 0. a=X-nat:0. m=audio 4000 RTP/SAVP 103 102 104 117 3 0 8 101. a=rtcp:4001 IN IP4 10.10.0.51. a=rtpmap:103 speex/16000. a=rtpmap:102 speex/8000. a=rtpmap:104 speex/32000. a=rtpmap:117 iLBC/8000. a=fmtp:117 mode=30. a=rtpmap:3 GSM/8000. a=rtpmap:0 PCMU/8000. a=rtpmap:8 PCMA/8000. a=sendrecv. a=rtpmap:101 telephone-event/8000. a=fmtp:101 0-15. a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:6EFZp6PIPvydNNIHx2fP4S00Ge68YJqphMyrF5up. a=crypto:2 AES_CM_128_HMAC_SHA1_32 inline:qmjJfTK4P64oRygGYrDMjjVcsrEKfnKnoQ8WXROS. U 2008/02/13 14:36:27.097969 1.2.3.160:5060 -> 4.5.6.3:1786 SIP/2.0 200 OK. Via: SIP/2.0/UDP 10.10.0.51:1786;received=4.5.6.3;rport=1786;branch=z9hG4bKPj6abbb11403354180b8a7617ad61505a9. Record-Route: <sip:88.198.53.113:6061;transport=tls;lr;r2=on>. Record-Route: <sip:88.198.53.113:6060;r2=on;lr=on>. Record-Route: <sip:1.2.3.160;ftag=0b39dc5fa7af406db588048d922ee881;nat=caller;lr=on>. Contact: <sip:klaus2 at 4.5.6.3:1610;transport=TLS;rinstance=d0e6de01175913d9>. To: <sip:klaus2 at otherdomain.com>;tag=c52f5b0d. From: <sip:klaus.darilion at mydomain.com>;tag=0b39dc5fa7af406db588048d922ee881. Call-ID: e3e07d7bb5d843359cd3a8bfa6cd2607. CSeq: 13591 INVITE. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO. Content-Type: application/sdp. User-Agent: eyeBeam release 1013t stamp 43069. Content-Length: 353. . v=0. o=- 0 2 IN IP4 4.5.6.3. s=CounterPath eyeBeam 1.5. c=IN IP4 1.2.3.163. t=0 0. m=audio 37564 RTP/SAVP 117 0 8 101. a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:6EFZp6PIPvydNNIHx2fP4S00Ge68YJqphMyrF5up . a=fmtp:101 0-15. a=rtpmap:117 iLBC/8000. a=rtpmap:101 telephone-event/8000. a=sendrecv. a=x-rtp-session-id:A42751BBA7F442AABA9C315FFEB8714C.