[OpenSIPS-Users] mediaproxy 2.3: reinvites' SDP not modified
Carlo Dimaggio
jaasmailing at gmail.com
Tue Feb 10 18:47:18 CET 2009
Il giorno 09/feb/09, alle ore 20:39, Ruud Klaver ha scritto:
> Hi Carlo,
>
> Thanks for the extensive log information. For some reason your
> OpenSIPS does not send the re-INVITE and the resulting 200 OK to the
> dispatcher. You can see above that the dispatcher only sends two
> "update" commands to the relay, one for the initial INVITE and the
> 200 OK. I'm suspecting that your OpenSIPS config is at fault. Does
> the OpenSIPS log provide you with a clue as to why it does not send
> the contents of the re-INVITE to the dispatcher?
Hi Ruud!
I don't think there is a problem in my Opensips configuration because
with another ATA (Grandstream HT503) all works fine. I suppose there
is a problem with this patton 4022 (perhaps they have different
implementations of t.38). I've seen that the patton and the
grandstream have different t38 headers... Does mediaproxy check the
headers to understand if there is a t38 session?
For better investigation, I attach here the logs with HT503 and the
same opensips.cfg.
Best Regards,
Carlo Dimaggio
--------------------
1) Syslog media-relay
Feb 10 16:46:20 media media-relay[3339]: [RelayClientProtocol,client]
Received new SDP offer
Feb 10 16:46:20 media media-relay[3339]: [RelayClientProtocol,client]
mediaproxy.mediacontrol.StreamListenerProtocol starting on 50012
Feb 10 16:46:20 media media-relay[3339]: [RelayClientProtocol,client]
mediaproxy.mediacontrol.StreamListenerProtocol starting on 50013
Feb 10 16:46:20 media media-relay[3339]: [RelayClientProtocol,client]
mediaproxy.mediacontrol.StreamListenerProtocol starting on 50014
Feb 10 16:46:20 media media-relay[3339]: [RelayClientProtocol,client]
mediaproxy.mediacontrol.StreamListenerProtocol starting on 50015
Feb 10 16:46:20 media media-relay[3339]: [RelayClientProtocol,client]
Added new stream: (audio) <IP_T38MODEM>:10030 (RTP: Unknown, RTCP:
Unknown) <-> <IP_MEDIA_RELAY>:50012 <-> <IP_MEDIA_RELAY>:50014 <->
Unknown (RTP: Unknown, RTCP: Unknown)
Feb 10 16:46:20 media media-relay[3339]: [RelayClientProtocol,client]
created new session c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser:
faxservice@<IP_T38MODEM> (582848b0-f7f5-dd11-9e93-001cc4fb100a) -->
1001 at opensips
Feb 10 16:46:21 media media-relay[3339]: [RelayClientProtocol,client]
updating existing session c88c46b0-f7f5-
dd11-9e93-001cc4fb100a at openser: faxservice@<IP_T38MODEM> (582848b0-
f7f5-dd11-9e93-001cc4fb100a) --> 1001 at opensips
Feb 10 16:46:21 media media-relay[3339]: [RelayClientProtocol,client]
Received updated SDP answer
Feb 10 16:46:21 media media-relay[3339]: [RelayClientProtocol,client]
Got initial answer from callee for stream: (audio) <IP_T38MODEM>:10030
(RTP: Unknown, RTCP: Unknown) <-> <IP_MEDIA_RELAY>:50012 <->
<IP_MEDIA_RELAY>:50014 <-> 10.0.6.47:5004 (RTP: Unknown, RTCP: Unknown)
Feb 10 16:46:21 media media-relay[3339]:
[mediaproxy.mediacontrol.StreamListenerProtocol (UDP)] Got traffic
information for stream: (audio) <IP_T38MODEM>:10030 (RTP:
<IP_T38MODEM>:10030, RTCP: Unknown) <-> <IP_MEDIA_RELAY>:50012 <->
<IP_MEDIA_RELAY>:50014 <-> 10.0.6.47:5004 (RTP: Unknown, RTCP: Unknown)
Feb 10 16:46:21 media media-relay[3339]:
[mediaproxy.mediacontrol.StreamListenerProtocol (UDP)] Got traffic
information for stream: (audio) <IP_T38MODEM>:10030 (RTP:
<IP_T38MODEM>:10030, RTCP: Unknown) <-> <IP_MEDIA_RELAY>:50012 <->
<IP_MEDIA_RELAY>:50014 <-> 10.0.6.47:5004 (RTP: 10.0.6.47:5004, RTCP:
Unknown)
Feb 10 16:46:31 media media-relay[3339]: [RelayClientProtocol,client]
updating existing session c88c46b0-f7f5-
dd11-9e93-001cc4fb100a at openser: faxservice@<IP_T38MODEM> (582848b0-
f7f5-dd11-9e93-001cc4fb100a) --> 1001 at opensips
Feb 10 16:46:31 media media-relay[3339]: [RelayClientProtocol,client]
Received new SDP offer
Feb 10 16:46:31 media media-relay[3339]: [RelayClientProtocol,client]
mediaproxy.mediacontrol.StreamListenerProtocol starting on 50016
Feb 10 16:46:31 media media-relay[3339]: [RelayClientProtocol,client]
mediaproxy.mediacontrol.StreamListenerProtocol starting on 50017
Feb 10 16:46:31 media media-relay[3339]: [RelayClientProtocol,client]
mediaproxy.mediacontrol.StreamListenerProtocol starting on 50018
Feb 10 16:46:31 media media-relay[3339]: [RelayClientProtocol,client]
mediaproxy.mediacontrol.StreamListenerProtocol starting on 50019
Feb 10 16:46:31 media media-relay[3339]: [RelayClientProtocol,client]
Added new stream: (image) Unknown (RTP: Unknown, RTCP: Unknown) <->
<IP_MEDIA_RELAY>:50016 <-> <IP_MEDIA_RELAY>:50018 <-> 10.0.6.47:5004
(RTP: Unknown, RTCP: Unknown)
Feb 10 16:46:31 media media-relay[3339]: [RelayClientProtocol,client]
updating existing session c88c46b0-f7f5-
dd11-9e93-001cc4fb100a at openser: faxservice@<IP_T38MODEM> (582848b0-
f7f5-dd11-9e93-001cc4fb100a) --> 1001 at opensips
Feb 10 16:46:31 media media-relay[3339]: [RelayClientProtocol,client]
Received new SDP offer
Feb 10 16:46:31 media media-relay[3339]: [RelayClientProtocol,client]
Found matching existing stream: (image) Unknown (RTP: Unknown, RTCP:
Unknown) <-> <IP_MEDIA_RELAY>:50016 <-> <IP_MEDIA_RELAY>:50018 <->
10.0.6.47:5004 (RTP: Unknown, RTCP: Unknown)
Feb 10 16:46:31 media media-relay[3339]: [-] (Port 50012 Closed)
Feb 10 16:46:31 media media-relay[3339]: [-] (Port 50013 Closed)
Feb 10 16:46:31 media media-relay[3339]: [-] (Port 50014 Closed)
Feb 10 16:46:31 media media-relay[3339]: [-] (Port 50015 Closed)
Feb 10 16:46:31 media media-relay[3339]: [RelayClientProtocol,client]
updating existing session c88c46b0-f7f5-
dd11-9e93-001cc4fb100a at openser: faxservice@<IP_T38MODEM> (582848b0-
f7f5-dd11-9e93-001cc4fb100a) --> 1001 at opensips
Feb 10 16:46:31 media media-relay[3339]: [RelayClientProtocol,client]
Received updated SDP answer
Feb 10 16:46:31 media media-relay[3339]: [RelayClientProtocol,client]
Got initial answer from caller for stream: (image) <IP_T38MODEM>:10030
(RTP: Unknown, RTCP: Unknown) <-> <IP_MEDIA_RELAY>:50016 <->
<IP_MEDIA_RELAY>:50018 <-> 10.0.6.47:5004 (RTP: Unknown, RTCP: Unknown)
Feb 10 16:46:31 media media-relay[3339]:
[mediaproxy.mediacontrol.StreamListenerProtocol (UDP)] Got traffic
information for stream: (image) <IP_T38MODEM>:10030 (RTP:
<IP_T38MODEM>:10030, RTCP: Unknown) <-> <IP_MEDIA_RELAY>:50016 <->
<IP_MEDIA_RELAY>:50018 <-> 10.0.6.47:5004 (RTP: Unknown, RTCP: Unknown)
Feb 10 16:46:31 media media-relay[3339]:
[mediaproxy.mediacontrol.StreamListenerProtocol (UDP)] Got traffic
information for stream: (image) <IP_T38MODEM>:10030 (RTP:
<IP_T38MODEM>:10030, RTCP: Unknown) <-> <IP_MEDIA_RELAY>:50016 <->
<IP_MEDIA_RELAY>:50018 <-> 10.0.6.47:5004 (RTP: 10.0.6.47:5004, RTCP:
Unknown)
Feb 10 16:46:52 media media-relay[3339]: [RelayClientProtocol,client]
removing session c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser:
faxservice@<IP_T38MODEM> (582848b0-f7f5-dd11-9e93-001cc4fb100a) -->
1001 at opensips
Feb 10 16:46:52 media media-relay[3339]: [-] (Port 50016 Closed)
Feb 10 16:46:52 media media-relay[3339]: [-] (Port 50017 Closed)
Feb 10 16:46:52 media media-relay[3339]: [-] (Port 50018 Closed)
Feb 10 16:46:52 media media-relay[3339]: [-] (Port 50019 Closed)
2) Full Sip Trace (opensips/media-dispatcher)
#
U <IP_T38MODEM>:6060 -> <IP_OPENSIPS>:5060
INVITE sip:1001 at opensips SIP/2.0.
Date: Tue, 10 Feb 2009 15:46:45 GMT.
CSeq: 1 INVITE.
Via: SIP/2.0/UDP <IP_T38MODEM>:6060;branch=z9hG4bK507148b0-f7f5-
dd11-9e93-001cc4fb100a;rport.
User-Agent: T38Modem/1.1.0.
From: "root" <sip:faxservice@<IP_T38MODEM>>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
Organization: Vyacheslav Frolov.
To: <sip:1001 at opensips>.
Contact: <sip:faxservice@<IP_T38MODEM>:6060>.
Allow:
INVITE,ACK,OPTIONS,BYE,CANCEL,SUBSCRIBE,NOTIFY,REFER,MESSAGE,INFO,PING.
Content-Type: application/sdp.
Content-Length: 300.
Max-Forwards: 70.
.
v=0.
o=- 1234280805 1234280805 IN IP4 <IP_T38MODEM>.
s=Opal SIP Session.
c=IN IP4 <IP_T38MODEM>.
t=0 0.
m=audio 10030 RTP/AVP 0 8 101 100.
a=sendrecv.
a=rtpmap:0 PCMU/8000/1.
a=rtpmap:8 PCMA/8000/1.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16,32,36.
a=rtpmap:100 NSE/8000.
a=fmtp:100 192-193.
#
U <IP_OPENSIPS>:5060 -> <IP_T38MODEM>:6060
SIP/2.0 100 Giving a try.
CSeq: 1 INVITE.
Via: SIP/2.0/UDP <IP_T38MODEM>:6060;branch=z9hG4bK507148b0-f7f5-
dd11-9e93-001cc4fb100a;rport=6060.
From: "root" <sip:faxservice@<IP_T38MODEM>>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
To: <sip:1001 at opensips>.
Server: OpenSIPS (1.4.3-tls (i386/linux)).
Content-Length: 0.
.
#
U <IP_OPENSIPS>:5060 -> 10.0.6.47:5060
INVITE sip:1001 at 10.0.6.47:5060 SIP/2.0.
Record-Route: <sip:<IP_OPENSIPS>;lr=on;ftag=582848b0-f7f5-
dd11
-9e93
-001cc4fb100a;vsf=AAAAAAAAAAAAAABCUEUAVVxHXhxRWjI1;did=936.ee908b83>.
Date: Tue, 10 Feb 2009 15:46:45 GMT.
CSeq: 1 INVITE.
Via: SIP/2.0/UDP <IP_OPENSIPS>;branch=z9hG4bK821.50bde503.0.
Via: SIP/2.0/UDP <IP_T38MODEM>:
6060;received=<IP_T38MODEM>;branch=z9hG4bK507148b0-f7f5-
dd11-9e93-001cc4fb100a;rport=6060.
User-Agent: T38Modem/1.1.0.
From: "faxservice" <sip:faxservice at opensips>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
Organization: Vyacheslav Frolov.
To: <sip:1001 at opensips>.
Contact: <sip:faxservice@<IP_T38MODEM>:6060>.
Allow:
INVITE,ACK,OPTIONS,BYE,CANCEL,SUBSCRIBE,NOTIFY,REFER,MESSAGE,INFO,PING.
Content-Type: application/sdp.
Content-Length: 299.
Max-Forwards: 69.
.
v=0.
o=- 1234280805 1234280805 IN IP4 <IP_T38MODEM>.
s=Opal SIP Session.
c=IN IP4 <IP_MEDIA_RELAY>.
t=0 0.
m=audio 50014 RTP/AVP 0 8 101 100.
a=sendrecv.
a=rtpmap:0 PCMU/8000/1.
a=rtpmap:8 PCMA/8000/1.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16,32,36.
a=rtpmap:100 NSE/8000.
a=fmtp:100 192-193.
#
U 10.0.6.47:5060 -> <IP_OPENSIPS>:5060
SIP/2.0 100 Trying.
Via: SIP/2.0/UDP <IP_OPENSIPS>;branch=z9hG4bK821.50bde503.0.
Via: SIP/2.0/UDP <IP_T38MODEM>:
6060;received=<IP_T38MODEM>;branch=z9hG4bK507148b0-f7f5-
d9e93-001cc4fb100a;rport=6060.
From: "faxservice" <sip:faxservice at opensips>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
To: <sip:1001 at opensips>.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
CSeq: 1 INVITE.
Supported: replaces, path, timer.
User-Agent: Grandstream HT-503 V1.1B 1.0.0.15.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO,
REFER, UPDATE.
Content-Length: 0.
.
#
U 10.0.6.47:5060 -> <IP_OPENSIPS>:5060
SIP/2.0 180 Ringing.
Via: SIP/2.0/UDP <IP_OPENSIPS>;branch=z9hG4bK821.50bde503.0.
Via: SIP/2.0/UDP <IP_T38MODEM>:
6060;received=<IP_T38MODEM>;branch=z9hG4bK507148b0-f7f5-
d9e93-001cc4fb100a;rport=6060.
Record-Route: <sip:<IP_OPENSIPS>;lr=on;ftag=582848b0-f7f5-
dd11
-9e93-001cc4fb100a;vsf=AAAAAAAAAAABCUEUAVVxHXhxRWjI1;did=936.ee908b83>.
From: "faxservice" <sip:faxservice at opensips>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
To: <sip:1001 at opensips>;tag=734834964.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
CSeq: 1 INVITE.
Contact: <sip:1001 at 10.0.6.47:5060>.
Supported: replaces, path, timer.
User-Agent: Grandstream HT-503 V1.1B 1.0.0.15.
Allow-Events: talk, hold.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO,
REFER, UPDATE.
Content-Length: 0.
.
#
U <IP_OPENSIPS>:5060 -> <IP_T38MODEM>:6060
SIP/2.0 180 Ringing.
Via: SIP/2.0/UDP <IP_T38MODEM>:
6060;received=<IP_T38MODEM>;branch=z9hG4bK507148b0-f7f5-
dd11-9e93-001cc4fb100a;rport=6060.
Record-Route: <sip:<IP_OPENSIPS>;lr=on;ftag=582848b0-f7f5-
dd11
-9e93-001cc4fb100a;vsf=AAAAAAAAAAABCUEUAVVxHXhxRWjI1;did=936.ee908b83>.
From: "root" <sip:faxservice@<IP_T38MODEM>>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
To: <sip:1001 at opensips>;tag=734834964.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
CSeq: 1 INVITE.
Contact: <sip:1001 at 10.0.6.47:5060>.
Supported: replaces, path, timer.
User-Agent: Grandstream HT-503 V1.1B 1.0.0.15.
Allow-Events: talk, hold.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO,
REFER, UPDATE.
Content-Length: 0.
P-hint: Onreply-route - fixcontact .
.
#
U 10.0.6.47:5060 -> <IP_OPENSIPS>:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP <IP_OPENSIPS>;branch=z9hG4bK821.50bde503.0.
Via: SIP/2.0/UDP <IP_T38MODEM>:
6060;received=<IP_T38MODEM>;branch=z9hG4bK507148b0-f7f5-
dd11-9e93-001cc4fb100a;rport=6060.
Record-Route: <sip:<IP_OPENSIPS>;lr=on;ftag=582848b0-f7f5-
dd11
-9e93
-001cc4fb100a;vsf=AAAAAAAAAAAAAABCUEUAVVxHXhxRWjI1;did=936.ee908b83>.
From: "faxservice" <sip:faxservice at opensips>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
To: <sip:1001 at opensips>;tag=734834964.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
CSeq: 1 INVITE.
Contact: <sip:1001 at 10.0.6.47:5060>.
Supported: replaces, path, timer.
User-Agent: Grandstream HT-503 V1.1B 1.0.0.15.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO,
REFER, UPDATE.
Content-Type: application/sdp.
Content-Length: 238.
.
v=0.
o=1001 8000 8000 IN IP4 10.0.6.47.
s=SIP Call.
c=IN IP4 10.0.6.47.
t=0 0.
m=audio 5004 RTP/AVP 0 8 101.
a=sendrecv.
a=rtpmap:0 PCMU/8000.
a=ptime:20.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16,32-36,54.
#
U <IP_OPENSIPS>:5060 -> <IP_T38MODEM>:6060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP <IP_T38MODEM>:
6060;received=<IP_T38MODEM>;branch=z9hG4bK507148b0-f7f5-
dd11-9e93-001cc4fb100a;rport=6060.
Record-Route: <sip:<IP_OPENSIPS>;lr=on;ftag=582848b0-f7f5-
dd11
-9e93
-001cc4fb100a;vsf=AAAAAAAAAAAAAABCUEUAVVxHXhxRWjI1;did=936.ee908b83>.
From: "root" <sip:faxservice@<IP_T38MODEM>>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
To: <sip:1001 at opensips>;tag=734834964.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
CSeq: 1 INVITE.
Contact: <sip:1001 at 10.0.6.47:5060>.
Supported: replaces, path, timer.
User-Agent: Grandstream HT-503 V1.1B 1.0.0.15.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO,
REFER, UPDATE.
Content-Type: application/sdp.
Content-Length: 242.
P-hint: Onreply-route - fixcontact .
.
v=0.
o=1001 8000 8000 IN IP4 10.0.6.47.
s=SIP Call.
c=IN IP4 <IP_MEDIA_RELAY>.
t=0 0.
m=audio 50012 RTP/AVP 0 8 101.
a=sendrecv.
a=rtpmap:0 PCMU/8000.
a=ptime:20.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16,32-36,54.
#
U <IP_T38MODEM>:6060 -> <IP_OPENSIPS>:5060
ACK sip:1001 at 10.0.6.47:5060 SIP/2.0.
Route: <sip:<IP_OPENSIPS>;lr=on;ftag=582848b0-f7f5-
dd11
-9e93
-001cc4fb100a;vsf=AAAAAAAAAAAAAABCUEUAVVxHXhxRWjI1;did=936.ee908b83>.
CSeq: 1 ACK.
Via: SIP/2.0/UDP <IP_T38MODEM>:6060;branch=z9hG4bKf231a4b0-f7f5-
dd11-9e93-001cc4fb100a;rport.
From: "root" <sip:faxservice@<IP_T38MODEM>>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
To: <sip:1001 at opensips>;tag=734834964.
Contact: <sip:faxservice@<IP_T38MODEM>:6060>.
Content-Length: 0.
Max-Forwards: 70.
.
#
U <IP_OPENSIPS>:5060 -> 10.0.6.47:5060
ACK sip:1001 at 10.0.6.47:5060 SIP/2.0.
Record-Route: <sip:<IP_OPENSIPS>;lr=on;ftag=582848b0-f7f5-
dd11-9e93-001cc4fb100a>.
CSeq: 1 ACK.
Via: SIP/2.0/UDP <IP_OPENSIPS>;branch=z9hG4bK821.50bde503.2.
Via: SIP/2.0/UDP <IP_T38MODEM>:
6060;received=<IP_T38MODEM>;branch=z9hG4bKf231a4b0-f7f5-
dd11-9e93-001cc4fb100a;rport=6060.
From: "root" <sip:faxservice at opensips>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
To: <sip:1001 at opensips>;tag=734834964.
Contact: <sip:faxservice@<IP_T38MODEM>:6060>.
Content-Length: 0.
Max-Forwards: 69.
.
#
U 10.0.6.47:5060 -> <IP_OPENSIPS>:5060
INVITE sip:faxservice@<IP_T38MODEM>:6060 SIP/2.0.
Via: SIP/2.0/UDP 10.0.6.47:5060;branch=z9hG4bK32475996;rport.
Route: <sip:<IP_OPENSIPS>;lr=on;ftag=582848b0-f7f5-
dd11
-9e93
-001cc4fb100a;vsf=AAAAAAAAAAAAAABCUEUAVVxHXhxRWjI1;did=936.ee908b83>.
From: <sip:1001 at opensips>;tag=734834964.
To: "faxservice" <sip:faxservice at opensips>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
CSeq: 2 INVITE.
Contact: <sip:1001 at 10.0.6.47:5060>.
Max-Forwards: 70.
Supported: replaces, path, timer.
User-Agent: Grandstream HT-503 V1.1B 1.0.0.15.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO,
REFER, UPDATE.
Content-Type: application/sdp.
Accept: application/sdp, application/dtmf-relay.
Content-Length: 343.
.
v=0.
o=1001 8000 8001 IN IP4 10.0.6.47.
s=SIP Call.
c=IN IP4 10.0.6.47.
t=0 0.
m=image 5004 udptl t38.
a=T38FaxVersion:0.
a=T38MaxBitRate:14400.
a=T38FaxFillBitRemoval:0.
a=T38FaxTranscodingMMR:0.
a=T38FaxTranscodingJBIG:0.
a=T38FaxRateManagement:transferredTCF.
a=T38FaxMaxBuffer:400.
a=T38FaxMaxDatagram:280.
a=T38FaxUdpEC:t38UDPRedundancy.
#
U <IP_OPENSIPS>:5060 -> 10.0.6.47:5060
SIP/2.0 407 Proxy Authentication Required.
Via: SIP/2.0/UDP 10.0.6.47:5060;branch=z9hG4bK32475996;rport=5060.
From: <sip:1001 at opensips>;tag=734834964.
To: "faxservice" <sip:faxservice at opensips>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
CSeq: 2 INVITE.
Proxy-Authenticate: Digest realm="opensips",
nonce="4991a1d300000e670292a2d991e7209abe8b7aa19e477759", qop="auth".
Server: OpenSIPS (1.4.3-tls (i386/linux)).
Content-Length: 0.
.
#
U 10.0.6.47:5060 -> <IP_OPENSIPS>:5060
ACK sip:faxservice@<IP_T38MODEM>:6060 SIP/2.0.
Via: SIP/2.0/UDP 10.0.6.47:5060;branch=z9hG4bK32475996;rport.
Route: <sip:<IP_OPENSIPS>;lr=on;ftag=582848b0-f7f5-
dd11
-9e93
-001cc4fb100a;vsf=AAAAAAAAAAAAAABCUEUAVVxHXhxRWjI1;did=936.ee908b83>.
From: <sip:1001 at opensips>;tag=734834964.
To: "faxservice" <sip:faxservice at opensips>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
CSeq: 2 ACK.
Content-Length: 0.
.
#
U <IP_OPENSIPS>:5060 -> <IP_T38MODEM>:6060
ACK sip:faxservice@<IP_T38MODEM>:6060 SIP/2.0.
Max-Forwards: 10.
Record-Route: <sip:<IP_OPENSIPS>;lr=on;ftag=734834964>.
Via: SIP/2.0/UDP <IP_OPENSIPS>;branch=z9hG4bK32475996.
Via: SIP/2.0/UDP
10.0.6.47:5060;received=10.0.6.47;branch=z9hG4bK32475996;rport=5060.
From: <sip:1001 at opensips>;tag=734834964.
To: "faxservice" <sip:faxservice@<IP_T38MODEM>>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
CSeq: 2 ACK.
Content-Length: 0.
.
#
U 10.0.6.47:5060 -> <IP_OPENSIPS>:5060
INVITE sip:faxservice@<IP_T38MODEM>:6060 SIP/2.0.
Via: SIP/2.0/UDP 10.0.6.47:5060;branch=z9hG4bK2070430934;rport.
Route: <sip:<IP_OPENSIPS>;lr=on;ftag=582848b0-f7f5-
dd11
-9e93
-001cc4fb100a;vsf=AAAAAAAAAAAAAABCUEUAVVxHXhxRWjI1;did=936.ee908b83>.
From: <sip:1001 at opensips>;tag=734834964.
To: "faxservice" <sip:faxservice at opensips>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
CSeq: 3 INVITE.
Contact: <sip:1001 at 10.0.6.47:5060>.
Proxy-Authorization: Digest username="1001", realm="opensips",
nonce="4991a1d300000e670292a2d991e7209abe8b7aa19e477759", uri="sip:faxservice@
<IP_T38MODEM>:6060", response="ddd7387de9fae72d773678b9d5f20f42",
algorithm=MD5, cnonce="03852335", qop=auth, nc=00000002.
Max-Forwards: 70.
Supported: replaces, path, timer.
User-Agent: Grandstream HT-503 V1.1B 1.0.0.15.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO,
REFER, UPDATE.
Content-Type: application/sdp.
Accept: application/sdp, application/dtmf-relay.
Content-Length: 343.
.
v=0.
o=1001 8000 8001 IN IP4 10.0.6.47.
s=SIP Call.
c=IN IP4 10.0.6.47.
t=0 0.
m=image 5004 udptl t38.
a=T38FaxVersion:0.
a=T38MaxBitRate:14400.
a=T38FaxFillBitRemoval:0.
a=T38FaxTranscodingMMR:0.
a=T38FaxTranscodingJBIG:0.
a=T38FaxRateManagement:transferredTCF.
a=T38FaxMaxBuffer:400.
a=T38FaxMaxDatagram:280.
a=T38FaxUdpEC:t38UDPRedundancy.
#
U <IP_OPENSIPS>:5060 -> 10.0.6.47:5060
SIP/2.0 100 Giving a try.
Via: SIP/2.0/UDP 10.0.6.47:5060;branch=z9hG4bK2070430934;rport=5060.
From: <sip:1001 at opensips>;tag=734834964.
To: "faxservice" <sip:faxservice at opensips>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
CSeq: 3 INVITE.
Server: OpenSIPS (1.4.3-tls (i386/linux)).
Content-Length: 0.
.
#
U <IP_OPENSIPS>:5060 -> <IP_T38MODEM>:6060
INVITE sip:faxservice@<IP_T38MODEM>:6060 SIP/2.0.
Record-Route: <sip:<IP_OPENSIPS>;lr=on;ftag=734834964;nat=yes>.
Via: SIP/2.0/UDP <IP_OPENSIPS>;branch=z9hG4bK621.56799213.0.
Via: SIP/2.0/UDP
10.0.6.47:5060;received=10.0.6.47;branch=z9hG4bK2070430934;rport=5060.
From: <sip:1001 at opensips>;tag=734834964.
To: "faxservice" <sip:faxservice@<IP_T38MODEM>>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
CSeq: 3 INVITE.
Contact: <sip:1001 at 10.0.6.47:5060>.
Proxy-Authorization: Digest username="1001", realm="opensips",
nonce="4991a1d300000e670292a2d991e7209abe8b7aa19e477759", uri="sip:faxservice@
<IP_T38MODEM>:6060", response="ddd7387de9fae72d773678b9d5f20f42",
algorithm=MD5, cnonce="03852335", qop=auth, nc=00000002.
Max-Forwards: 69.
Supported: replaces, path, timer.
User-Agent: Grandstream HT-503 V1.1B 1.0.0.15.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO,
REFER, UPDATE.
Content-Type: application/sdp.
Accept: application/sdp, application/dtmf-relay.
Content-Length: 347.
.
v=0.
o=1001 8000 8001 IN IP4 10.0.6.47.
s=SIP Call.
c=IN IP4 <IP_MEDIA_RELAY>.
t=0 0.
m=image 50016 udptl t38.
a=T38FaxVersion:0.
a=T38MaxBitRate:14400.
a=T38FaxFillBitRemoval:0.
a=T38FaxTranscodingMMR:0.
a=T38FaxTranscodingJBIG:0.
a=T38FaxRateManagement:transferredTCF.
a=T38FaxMaxBuffer:400.
a=T38FaxMaxDatagram:280.
a=T38FaxUdpEC:t38UDPRedundancy.
#
U <IP_T38MODEM>:6060 -> <IP_OPENSIPS>:5060
SIP/2.0 100 Trying.
CSeq: 3 INVITE.
Via: SIP/2.0/UDP <IP_OPENSIPS>;branch=z9hG4bK621.56799213.0.
Via: SIP/2.0/UDP
10.0.6.47:5060;received=10.0.6.47;branch=z9hG4bK2070430934;rport=5060.
From: <sip:1001 at opensips>;tag=734834964.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
To: "faxservice" <sip:faxservice@<IP_T38MODEM>>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Contact: <sip:faxservice@<IP_T38MODEM>:6060>.
Content-Length: 0.
Record-Route: <sip:<IP_OPENSIPS>;lr=on;ftag=734834964;nat=yes>.
.
#
U <IP_T38MODEM>:6060 -> <IP_OPENSIPS>:5060
SIP/2.0 200 OK.
CSeq: 3 INVITE.
Via: SIP/2.0/UDP <IP_OPENSIPS>;branch=z9hG4bK621.56799213.0.
Via: SIP/2.0/UDP
10.0.6.47:5060;received=10.0.6.47;branch=z9hG4bK2070430934;rport=5060.
User-Agent: T38Modem/1.1.0.
From: <sip:1001 at opensips>;tag=734834964.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
Organization: Vyacheslav Frolov.
To: "faxservice" <sip:faxservice@<IP_T38MODEM>>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Contact: <sip:faxservice@<IP_T38MODEM>:6060>.
Allow:
INVITE,ACK,OPTIONS,BYE,CANCEL,SUBSCRIBE,NOTIFY,REFER,MESSAGE,INFO,PING.
Content-Type: application/sdp.
Content-Length: 199.
Record-Route: <sip:<IP_OPENSIPS>;lr=on;ftag=734834964;nat=yes>.
.
v=0.
o=- 1234280816 1234280816 IN IP4 <IP_T38MODEM>.
s=Opal SIP Session.
c=IN IP4 <IP_T38MODEM>.
t=0 0.
m=image 10030 udptl t38.
a=sendrecv.
a=T38FaxVersion:0.
a=T38FaxRateManagement:transferredTCF.
#
U <IP_OPENSIPS>:5060 -> 10.0.6.47:5060
SIP/2.0 200 OK.
CSeq: 3 INVITE.
Via: SIP/2.0/UDP
10.0.6.47:5060;received=10.0.6.47;branch=z9hG4bK2070430934;rport=5060.
User-Agent: T38Modem/1.1.0.
From: <sip:1001 at opensips>;tag=734834964.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
Organization: Vyacheslav Frolov.
To: "faxservice" <sip:faxservice at opensips>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Contact: <sip:faxservice@<IP_T38MODEM>:6060>.
Allow:
INVITE,ACK,OPTIONS,BYE,CANCEL,SUBSCRIBE,NOTIFY,REFER,MESSAGE,INFO,PING.
Content-Type: application/sdp.
Content-Length: 198.
Record-Route: <sip:<IP_OPENSIPS>;lr=on;ftag=734834964;nat=yes>.
.
v=0.
o=- 1234280816 1234280816 IN IP4 <IP_T38MODEM>.
s=Opal SIP Session.
c=IN IP4 <IP_MEDIA_RELAY>.
t=0 0.
m=image 50018 udptl t38.
a=sendrecv.
a=T38FaxVersion:0.
a=T38FaxRateManagement:transferredTCF.
#
U 10.0.6.47:5060 -> <IP_OPENSIPS>:5060
ACK sip:faxservice@<IP_T38MODEM>:6060 SIP/2.0.
Via: SIP/2.0/UDP 10.0.6.47:5060;branch=z9hG4bK1617109027;rport.
Route: <sip:<IP_OPENSIPS>;lr=on;ftag=582848b0-f7f5-
dd11
-9e93
-001cc4fb100a;vsf=AAAAAAAAAAAAAABCUEUAVVxHXhxRWjI1;did=936.ee908b83>.
From: <sip:1001 at opensips>;tag=734834964.
To: "faxservice" <sip:faxservice at opensips>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
CSeq: 3 ACK.
Contact: <sip:1001 at 10.0.6.47:5060>.
Proxy-Authorization: Digest username="1001", realm="opensips",
nonce="4991a1d300000e670292a2d991e7209abe8b7aa19e477759", uri="sip:faxservice@
<IP_T38MODEM>:6060", response="ddd7387de9fae72d773678b9d5f20f42",
algorithm=MD5, cnonce="03852335", qop=auth, nc=00000002.
Max-Forwards: 70.
Supported: replaces, path, timer.
User-Agent: Grandstream HT-503 V1.1B 1.0.0.15.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO,
REFER, UPDATE.
Content-Length: 0.
.
#
U <IP_OPENSIPS>:5060 -> <IP_T38MODEM>:6060
ACK sip:faxservice@<IP_T38MODEM>:6060 SIP/2.0.
Record-Route: <sip:<IP_OPENSIPS>;lr=on;ftag=734834964;nat=yes>.
Via: SIP/2.0/UDP <IP_OPENSIPS>;branch=z9hG4bK621.56799213.2.
Via: SIP/2.0/UDP
10.0.6.47:5060;received=10.0.6.47;branch=z9hG4bK1617109027;rport=5060.
From: <sip:1001 at opensips>;tag=734834964.
To: "faxservice" <sip:faxservice@<IP_T38MODEM>>;tag=582848b0-f7f5-
dd11-9e93-001cc4fb100a.
Call-ID: c88c46b0-f7f5-dd11-9e93-001cc4fb100a at openser.
CSeq: 3 ACK.
Contact: <sip:1001 at 10.0.6.47:5060>.
Proxy-Authorization: Digest username="1001", realm="opensips",
nonce="4991a1d300000e670292a2d991e7209abe8b7aa19e477759", uri="sip:faxservice@
<IP_T38MODEM>:6060", response="ddd7387de9fae72d773678b9d5f20f42",
algorithm=MD5, cnonce="03852335", qop=auth, nc=00000002.
Max-Forwards: 69.
Supported: replaces, path, timer.
User-Agent: Grandstream HT-503 V1.1B 1.0.0.15.
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, INFO,
REFER, UPDATE.
Content-Length: 0.
.
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