19 Apr
2019
19 Apr
'19
11:52 a.m.
I'm using the following rtpengine_offer() to force the use of ICE relay and also
replace o= and m=
rtpengine_offer("replace-origin replace-session-connection ICE=force-relay
RTP");
The SDP is being updated to include an ICE relay candidate, but the IP addresses in the o=
and m= lines are not changing to the servers IP address (X.X.X.X).
I also tried using the media-address parameter but that didn't change the behaviour.
When I use rtpengine_answer() then it's not providing an ICE candidate nor changing o=
or m=, which I imagine is expected.
What am I missing?
INVITE from the client (before
rtpengine)------------------------------------------------------
INVITE sip:server.domain.com SIP/2.0Via: SIP/2.0/TCP
154.20.1.8:37520;branch=z9hG4bK-1710993570;rportFrom:
<sip:username@server.domain.com>;tag=281751229To:
<sip:server.domain.com>Contact:
<sip:username@154.20.1.8:37520;transport=tcp>Call-ID:
c715a8f9-4dd1-38d8-acbd-54153310f59fCSeq: 1756522847 INVITEContent-Type:
multipart/mixed;boundary=7efec5a8-3311-0157-fc8b-9af106265507Content-Length:
1506Max-Forwards: 70Allow: INVITE, ACK, CANCEL, BYE, MESSAGE, OPTIONS, NOTIFY, PRACK,
UPDATE, REFERPrivacy: noneSupported: 100rel
--7efec5a8-3311-0157-fc8b-9af106265507Content-Type: application/sdp
v=0o=organization 1983 678901 IN IP4 154.20.1.8s=-c=IN IP4 154.20.1.8t=0 0a=tcap:1
RTP/AVPFm=audio 15418 RTP/AVP 114 115 0
101i=speecha=ptime:20a=minptime:1a=maxptime:255a=silenceSupp:off - - - -a=rtpmap:114
AMR-WB/16000/1a=imageattr:114 octet-align=0a=fmtp:114 octet-align=0a=rtpmap:115
AMR-WB/16000/1a=imageattr:115 octet-align=1a=fmtp:115 octet-align=1a=rtpmap:0
PCMU/8000/1a=rtpmap:101 telephone-event/8000/1a=fmtp:101 0-16a=pcfg:1
t=1a=sendrecva=rtcp-muxa=ssrc:2047236273
cname:e6dcab7948b70d52cd51b75e505c49eba=ssrc:2047236273
mslabel:6994f7d1-6ce9-4fbd-acfd-84e5131ca2e2a=ssrc:2047236273 label:organization@audio
INVITE from the server (after
rtpengine)------------------------------------------------------
SIP/2.0 200 OKVia: SIP/2.0/TCP
154.20.1.8:37520;branch=z9hG4bK-1710993570;rport=37520;received=2.221.73.230From:
<sip:username@server.domain.com>;tag=281751229To:
<sip:server.domain.com>;tag=0ea7681ffd64b0ffcde1bff3393fd505.ae3aCall-ID:
c715a8f9-4dd1-38d8-acbd-54153310f59fCSeq: 1756522847 INVITEContact:
<sip:X.X.X.X:443;transport=tcp>Allow: INVITE, ACK, CANCEL, BYE, MESSAGE, OPTIONS,
NOTIFY, PRACK, UPDATE, REFERPrivacy: noneContent-Type:
multipart/mixed;boundary=7efec5a8-3311-0157-fc8b-9af106265507Server: kamailio (5.2.2
(x86_64/linux))Content-Length: 1965
--7efec5a8-3311-0157-fc8b-9af106265507Content-Type: application/sdp
v=0o=organization 1983 678901 IN IP4 154.20.1.8s=-c=IN IP4 154.20.1.8t=0 0a=tcap:1
RTP/AVPFm=audio 15418 RTP/AVP 114 115 0
101i=speecha=minptime:1a=maxptime:255a=silenceSupp:off - - - -a=imageattr:114
octet-align=0a=imageattr:115 octet-align=1a=pcfg:1 t=1a=rtcp-muxa=ssrc:2047236273
cname:e6dcab7948b70d52cd51b75e505c49eba=ssrc:2047236273
mslabel:6994f7d1-6ce9-4fbd-acfd-84e5131ca2e2a=ssrc:2047236273
label:organization@audioa=rtpmap:114 AMR-WB/16000/1a=rtpmap:115 AMR-WB/16000/1a=rtpmap:0
PCMU/8000/1a=rtpmap:101 telephone-event/8000/1a=fmtp:114 octet-align=0a=fmtp:115
octet-align=1a=fmtp:101
0-16a=sendrecva=ptime:20a=ice-ufrag:kzgbFAnua=ice-pwd:hnEu9EwTrdIZnTWhYbxtmdugvra=candidate:dzkwmPcB28NPHfRA
1 UDP 16777215 X.X.X.X 30366 typ relay raddr X.X.X.X rport
30366a=candidate:dzkwmPcB28NPHfRA 2 UDP 16777214 X.X.X.X 30367 typ relay raddr X.X.X.X
rport 30367a=sendrecva=ice-ufrag:uDE9wbvYa=ice-pwd:dx4CcIjqUNFfnRPJEF8GjatXdU