pjsip will always send ACK to 200/OK to Record-Route URI if it exists, or to the Contact URI it it doesn't. This is the standard SIP behavior and currently there's no mechanism to override this in pjsip. Best regards, ?Benny On Tue, Sep 14, 2010 at 5:59 AM, Darald Trinka <dtrinka at gmail.com> wrote: > A bit of background first. We have a client-server voip solution. We use > PJSIP on the client side. For various historically reasons we have a custom > STUN solution. I was able to figure out how to use the client's "public" IP > in the INVITE message - via?pjsua_transport_config.public_addr. But now we > have a problem with the ACK. > You can see the problem below as PJ's response to the 200 OK (via an ACK) is > sent to 172.22.0.67 (the server's internal IP). If I understand SIP > correctly this is caused by the "m" header, m: > <sip:8800 at 172.22.0.67:5064;transport=TCP>. > Before we launch into fixing the server (as this behavior is support by our > other clients) I wanted to know if there is a simple way to get PJ to ignore > the IP in the contact header and use the IP that is already in use. > > Thanks in advanced > Darald > > My NAT's IP: 71.83.58.195 > My iPhone's internal IP: 192.168.30.75 > Server's NAT's IP: 71.232.174.224 > Server's internal IP: 172.22.0.67 > > to tcp 71.232.174.224:5064: > INVITE?sip:8800 at 71.232.174.224:5064;transport=tcp?SIP/2.0 > Via: SIP/2.0/TCP > 192.168.30.75:50109;rport;branch=z9hG4bKPjFRl9GWyRUklHjfugyot2VfsOQAD2dg7W > Max-Forwards: 70 > From:?sip:josh2 at 71.232.174.224;tag=2Hx1n7dx-zNWT5IAAiThPVmtDHlEyP21 > To:?sip:8800 at 71.232.174.224 > Contact: <sip:josh2 at 71.83.58.195:17077> > Call-ID: uE63KGT-KZKHz8GYFMsmIjmrVNftu7Ah > CSeq: 8059 INVITE > Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, SUBSCRIBE, NOTIFY, REFER, > MESSAGE, OPTIONS > Supported: replaces, 100rel, timer, norefersub > Session-Expires: 1800 > Min-SE: 90 > User-Agent: DV iPhone App v1.0 > Content-Type: application/sdp > Content-Length: ? 424 > v=0 > o=- 3493393500 3493393500 IN IP4 71.83.58.195 > s=pjmedia > c=IN IP4 71.83.58.195 > t=0 0 > m=audio 8000 RTP/AVP 103 102 104 109 3 0 8 101 > a=rtcp:8001 IN IP4 71.83.58.195 > a=rtpmap:103 speex/16000 > a=rtpmap:102 speex/8000 > a=rtpmap:104 speex/32000 > a=rtpmap:109 iLBC/8000 > a=fmtp:109 mode=20 > 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 > > > from tcp 71.232.174.224:5064: > SIP/2.0 100 Trying > v: SIP/2.0/TCP > 192.168.30.75:50109;rport;branch=z9hG4bKPjFRl9GWyRUklHjfugyot2VfsOQAD2dg7W > f: <sip:josh2 at 71.232.174.224>;tag=2Hx1n7dx-zNWT5IAAiThPVmtDHlEyP21 > t: <sip:8800 at 71.232.174.224>;tag=7ead9716 > i: uE63KGT-KZKHz8GYFMsmIjmrVNftu7Ah > CSeq: 8059 INVITE > l: 0 > > << here is the problem >> > from tcp 71.232.174.224:5064: > SIP/2.0 200 OK > v: SIP/2.0/TCP > 192.168.30.75:50109;rport;branch=z9hG4bKPjFRl9GWyRUklHjfugyot2VfsOQAD2dg7W > f: <sip:josh2 at 71.232.174.224>;tag=2Hx1n7dx-zNWT5IAAiThPVmtDHlEyP21 > t: <sip:8800 at 71.232.174.224>;tag=7ead9716 > i: uE63KGT-KZKHz8GYFMsmIjmrVNftu7Ah > CSeq: 8059 INVITE > m: <sip:8800 at 172.22.0.67:5064;transport=TCP> > c: application/sdp > l: ? 209 > v=0 > o=8800 1042875255 1042875255 IN IP4 172.22.0.67 > s=session > c=IN IP4 172.22.0.67 > t=0 0 > m=audio 57350 RTP/AVP 0 101 > a=rtpmap:0 PCMU/8000 > a=rtpmap:101 telephone-event/8000 > a=fmtp:101 0-15 > a=sendrecv > > > << here is the problem >> > to tcp 172.22.0.67:5064: > ACK?sip:8800 at 172.22.0.67:5064;transport=TCP?SIP/2.0 > Via: SIP/2.0/TCP > 192.168.30.75:50112;rport;branch=z9hG4bKPjpAaSIIgi0Gao3-XDbPyXCRc3Y8D1aGnh > Max-Forwards: 70 > From:?sip:josh2 at 71.232.174.224;tag=2Hx1n7dx-zNWT5IAAiThPVmtDHlEyP21 > To:?sip:8800 at 71.232.174.224;tag=7ead9716 > Call-ID: uE63KGT-KZKHz8GYFMsmIjmrVNftu7Ah > CSeq: 8059 ACK > Content-Length: ?0 > > > from tcp 71.232.174.224:5064: > SIP/2.0 200 OK > v: SIP/2.0/TCP > 192.168.30.75:50109;rport;branch=z9hG4bKPjFRl9GWyRUklHjfugyot2VfsOQAD2dg7W > f: <sip:josh2 at 71.232.174.224>;tag=2Hx1n7dx-zNWT5IAAiThPVmtDHlEyP21 > t: <sip:8800 at 71.232.174.224>;tag=7ead9716 > i: uE63KGT-KZKHz8GYFMsmIjmrVNftu7Ah > CSeq: 8059 INVITE > m: <sip:8800 at 172.22.0.67:5064;transport=TCP> > c: application/sdp > l: ? 209 > v=0 > o=8800 1042875255 1042875255 IN IP4 172.22.0.67 > s=session > c=IN IP4 172.22.0.67 > t=0 0 > m=audio 57350 RTP/AVP 0 101 > a=rtpmap:0 PCMU/8000 > a=rtpmap:101 telephone-event/8000 > a=fmtp:101 0-15 > a=sendrecv > > > to tcp 172.22.0.67:5064: > ACK?sip:8800 at 172.22.0.67:5064;transport=TCP?SIP/2.0 > Via: SIP/2.0/TCP > 192.168.30.75:50112;rport;branch=z9hG4bKPjkeH7W6Fezro6.nuJ8DsNJQffrYc2nirm > Max-Forwards: 70 > From:?sip:josh2 at 71.232.174.224;tag=2Hx1n7dx-zNWT5IAAiThPVmtDHlEyP21 > To:?sip:8800 at 71.232.174.224;tag=7ead9716 > Call-ID: uE63KGT-KZKHz8GYFMsmIjmrVNftu7Ah > CSeq: 8059 ACK > Content-Length: ?0 > > > from tcp 71.232.174.224:5064: > SIP/2.0 200 OK > v: SIP/2.0/TCP > 192.168.30.75:50109;rport;branch=z9hG4bKPjFRl9GWyRUklHjfugyot2VfsOQAD2dg7W > f: <sip:josh2 at 71.232.174.224>;tag=2Hx1n7dx-zNWT5IAAiThPVmtDHlEyP21 > t: <sip:8800 at 71.232.174.224>;tag=7ead9716 > i: uE63KGT-KZKHz8GYFMsmIjmrVNftu7Ah > CSeq: 8059 INVITE > m: <sip:8800 at 172.22.0.67:5064;transport=TCP> > c: application/sdp > l: ? 209 > v=0 > o=8800 1042875255 1042875255 IN IP4 172.22.0.67 > s=session > c=IN IP4 172.22.0.67 > t=0 0 > m=audio 57350 RTP/AVP 0 101 > a=rtpmap:0 PCMU/8000 > a=rtpmap:101 telephone-event/8000 > a=fmtp:101 0-15 > a=sendrecv > > > to tcp 172.22.0.67:5064: > ACK?sip:8800 at 172.22.0.67:5064;transport=TCP?SIP/2.0 > Via: SIP/2.0/TCP > 192.168.30.75:50112;rport;branch=z9hG4bKPjXW6r3PkjwJOEccs0s3qqnfYl5hyygHbq > Max-Forwards: 70 > From:?sip:josh2 at 71.232.174.224;tag=2Hx1n7dx-zNWT5IAAiThPVmtDHlEyP21 > To:?sip:8800 at 71.232.174.224;tag=7ead9716 > Call-ID: uE63KGT-KZKHz8GYFMsmIjmrVNftu7Ah > CSeq: 8059 ACK > Content-Length: ?0 > > > The 200 ok, ACK sequence continues to repeats until PJ gives up. > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org > >
