[SIPForum-discussion] SDP Message in SIP problem. Please Help.
John Atkinson
johnat at nortel.com
Wed Jul 29 02:02:36 UTC 2009
look at your c= line
RFC 4566 says
5.7. Connection Data ("c=")
c=<nettype> <addrtype> <connection-address>
the sdp below does not have an address, it has something else
-----Original Message-----
From: discussion-bounces at sipforum.org
[mailto:discussion-bounces at sipforum.org] On Behalf Of Kristine Regis
Sent: Tuesday, July 28, 2009 3:10 AM
To: Venkata Ramesh B
Cc: discussion at sipforum.org
Subject: Re: [SIPForum-discussion] SDP Message in SIP problem. Please
Help.
Hi,
Thank you for the reply. I have the wireshark trace. The SDP Message is
already updated and the payload 101 is already there but still there is
no voice streaming happening.
The trace is the following:
No. Time Source Destination Protocol
Info
7 1.105177 172.16.100.21 172.16.100.20 SIP/SDP
Request: INVITE sip:1011 at ws20.racequeen.local, with session description
Frame 7 (671 bytes on wire, 671 bytes captured) Ethernet II, Src:
HonHaiPr_59:bf:74 (00:22:68:59:bf:74), Dst: HonHaiPr_59:bf:7a
(00:22:68:59:bf:7a) Internet Protocol, Src: 172.16.100.21
(172.16.100.21), Dst: 172.16.100.20 (172.16.100.20) User Datagram
Protocol, Src Port: sip (5060), Dst Port: sip (5060) Session Initiation
Protocol
Request-Line: INVITE sip:1011 at ws20.racequeen.local SIP/2.0
Message Header
Max-Forwards: 69
Content-Length: 222
To: <sip:1011 at ws20.racequeen.local>
<sip:1011 at ws20.racequeen.local>
Contact: <sip:172.16.100.21:5060;fid=server_1>
<sip:172.16.100.21:5060;fid=server_1>
Cseq: 1 INVITE
Via: SIP/2.0/UDP
172.16.100.21:5060;branch=z9hG4bKdaacb94b87d8c96340dbb28986e8f78f78bd
Content-Type: application/sdp
Call-Id: 172.16.100.21_3_5421782881147155363
From: <sip:1009 at ws20.racequeen.local>
<sip:1009 at ws20.racequeen.local> ;tag=fxo1xri9-3
Message Body
Session Description Protocol
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o): root 3457739521 3457739521 IN
IP4 ws21.racequeen.local
Session Name (s): -
Connection Information (c): IN IP4 ws21.racequeen.local
Time Description, active time (t): 0 0
Media Description, name and address (m): audio 32346 RTP/AVP
0 8 101
Media Attribute (a): rtpmap:0 PCMU/8000
Media Attribute (a): rtpmap:8 PCMA/8000
Media Attribute (a): rtpmap:101 telephone-event/8000
Media Attribute (a): fmtp:101 0-15
No. Time Source Destination Protocol
Info
8 1.107079 172.16.100.20 172.16.100.21 SIP
Status: 407 Proxy Authentication Required
Frame 8 (547 bytes on wire, 547 bytes captured) Ethernet II, Src:
HonHaiPr_59:bf:7a (00:22:68:59:bf:7a), Dst: HonHaiPr_59:bf:74
(00:22:68:59:bf:74) Internet Protocol, Src: 172.16.100.20
(172.16.100.20), Dst: 172.16.100.21 (172.16.100.21) User Datagram
Protocol, Src Port: sip (5060), Dst Port: sip (5060) Session Initiation
Protocol
Status-Line: SIP/2.0 407 Proxy Authentication Required
Message Header
To: <sip:1011 at ws20.racequeen.local>
<sip:1011 at ws20.racequeen.local>
;tag=c97b4d1cb1f3d0da549e06a8d482ef63.7440
Cseq: 1 INVITE
Via: SIP/2.0/UDP
172.16.100.21:5060;branch=z9hG4bKdaacb94b87d8c96340dbb28986e8f78f78bd
Call-Id: 172.16.100.21_3_5421782881147155363
From: <sip:1009 at ws20.racequeen.local>
<sip:1009 at ws20.racequeen.local> ;tag=fxo1xri9-3
Proxy-Authenticate: Digest realm="ws20.racequeen.local",
nonce="4a6e6ca0000000026de77af5ef8dceea597d1fa785a4ee52"
Server: OpenSIPS (1.5.1-tls (i386/linux))
Content-Length: 0
No. Time Source Destination Protocol
Info
9 1.166012 172.16.100.21 172.16.100.20 SIP
Request: ACK sip:1011 at ws20.racequeen.local
Frame 9 (404 bytes on wire, 404 bytes captured) Ethernet II, Src:
HonHaiPr_59:bf:74 (00:22:68:59:bf:74), Dst: HonHaiPr_59:bf:7a
(00:22:68:59:bf:7a) Internet Protocol, Src: 172.16.100.21
(172.16.100.21), Dst: 172.16.100.20 (172.16.100.20) User Datagram
Protocol, Src Port: sip (5060), Dst Port: sip (5060) Session Initiation
Protocol
Request-Line: ACK sip:1011 at ws20.racequeen.local SIP/2.0
Message Header
Max-Forwards: 70
Content-Length: 0
To: <sip:1011 at ws20.racequeen.local>
<sip:1011 at ws20.racequeen.local>
;tag=c97b4d1cb1f3d0da549e06a8d482ef63.7440
Cseq: 1 ACK
Via: SIP/2.0/UDP
172.16.100.21:5060;branch=z9hG4bKdaacb94b87d8c96340dbb28986e8f78f78bd
Call-Id: 172.16.100.21_3_5421782881147155363
From: <sip:1009 at ws20.racequeen.local>
<sip:1009 at ws20.racequeen.local> ;tag=fxo1xri9-3
No. Time Source Destination Protocol
Info
10 1.214436 172.16.100.21 172.16.100.20 SIP/SDP
Request: INVITE sip:1011 at ws20.racequeen.local, with session description
Frame 10 (901 bytes on wire, 901 bytes captured) Ethernet II, Src:
HonHaiPr_59:bf:74 (00:22:68:59:bf:74), Dst: HonHaiPr_59:bf:7a
(00:22:68:59:bf:7a) Internet Protocol, Src: 172.16.100.21
(172.16.100.21), Dst: 172.16.100.20 (172.16.100.20) User Datagram
Protocol, Src Port: sip (5060), Dst Port: sip (5060) Session Initiation
Protocol
Request-Line: INVITE sip:1011 at ws20.racequeen.local SIP/2.0
Message Header
Max-Forwards: 69
Proxy-Authorization: Digest algorithm=MD5, username="1009",
realm="ws20.racequeen.local",
nonce="4a6e6ca0000000026de77af5ef8dceea597d1fa785a4ee52",
uri="sip:1011 at ws20.racequeen.local" <sip:1011 at ws20.racequeen.local> ,
response="11238a9c03294b7a304d2746d7473168"
Content-Length: 222
To: <sip:1011 at ws20.racequeen.local>
<sip:1011 at ws20.racequeen.local>
Contact: <sip:172.16.100.21:5060;fid=server_1>
<sip:172.16.100.21:5060;fid=server_1>
Cseq: 2 INVITE
Via: SIP/2.0/UDP
172.16.100.21:5060;branch=z9hG4bKdaac3bcf533d13cc42b7a6421db7f67c6376
Content-Type: application/sdp
From: <sip:1009 at ws20.racequeen.local>
<sip:1009 at ws20.racequeen.local> ;tag=fxo1xri9-3
Call-Id: 172.16.100.21_3_5421782881147155363
Message Body
Session Description Protocol
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o): root 3457739522 3457739522 IN
IP4 ws21.racequeen.local
Session Name (s): -
Connection Information (c): IN IP4 ws21.racequeen.local
Time Description, active time (t): 0 0
Media Description, name and address (m): audio 32346 RTP/AVP
0 8 101
Media Attribute (a): rtpmap:0 PCMU/8000
Media Attribute (a): rtpmap:8 PCMA/8000
Media Attribute (a): rtpmap:101 telephone-event/8000
Media Attribute (a): fmtp:101 0-15
No. Time Source Destination Protocol
Info
16 1.220290 172.16.100.20 172.16.100.21 SIP
Status: 100 Giving a try
Frame 16 (373 bytes on wire, 373 bytes captured) Ethernet II, Src:
HonHaiPr_59:bf:7a (00:22:68:59:bf:7a), Dst: HonHaiPr_59:bf:74
(00:22:68:59:bf:74) Internet Protocol, Src: 172.16.100.20
(172.16.100.20), Dst: 172.16.100.21 (172.16.100.21) User Datagram
Protocol, Src Port: sip (5060), Dst Port: sip (5060) Session Initiation
Protocol
Status-Line: SIP/2.0 100 Giving a try
Message Header
To: <sip:1011 at ws20.racequeen.local>
<sip:1011 at ws20.racequeen.local>
Cseq: 2 INVITE
Via: SIP/2.0/UDP
172.16.100.21:5060;branch=z9hG4bKdaac3bcf533d13cc42b7a6421db7f67c6376
From: <sip:1009 at ws20.racequeen.local>
<sip:1009 at ws20.racequeen.local> ;tag=fxo1xri9-3
Call-Id: 172.16.100.21_3_5421782881147155363
Server: OpenSIPS (1.5.1-tls (i386/linux))
Content-Length: 0
No. Time Source Destination Protocol
Info
29 1.275839 172.16.100.20 172.16.100.21 SIP
Status: 180 Ringing
Frame 29 (470 bytes on wire, 470 bytes captured) Ethernet II, Src:
HonHaiPr_59:bf:7a (00:22:68:59:bf:7a), Dst: HonHaiPr_59:bf:74
(00:22:68:59:bf:74) Internet Protocol, Src: 172.16.100.20
(172.16.100.20), Dst: 172.16.100.21 (172.16.100.21) User Datagram
Protocol, Src Port: sip (5060), Dst Port: sip (5060) Session Initiation
Protocol
Status-Line: SIP/2.0 180 Ringing
Message Header
Max-Forwards: 70
Record-Route: <sip:172.16.100.20;lr=on;did=d53.8b77d2a>
<sip:172.16.100.20;lr=on;did=d53.8b77d2a>
To: <sip:1011 at ws20.racequeen.local>
<sip:1011 at ws20.racequeen.local> ;tag=1992049861
CSeq: 2 INVITE
Via: SIP/2.0/UDP
172.16.100.21:5060;branch=z9hG4bKdaac3bcf533d13cc42b7a6421db7f67c6376
From: <sip:1009 at ws20.racequeen.local>
<sip:1009 at ws20.racequeen.local> ;tag=fxo1xri9-3
Call-ID: 172.16.100.21_3_5421782881147155363
Contact: <sip:1011 at 172.16.100.20:45604;transport=udp>
<sip:1011 at 172.16.100.20:45604;transport=udp>
Content-Length: 0
No. Time Source Destination Protocol
Info
41 1.781782 172.16.100.20 172.16.100.21 SIP
Status: 180 Ringing
Frame 41 (470 bytes on wire, 470 bytes captured) Ethernet II, Src:
HonHaiPr_59:bf:7a (00:22:68:59:bf:7a), Dst: HonHaiPr_59:bf:74
(00:22:68:59:bf:74) Internet Protocol, Src: 172.16.100.20
(172.16.100.20), Dst: 172.16.100.21 (172.16.100.21) User Datagram
Protocol, Src Port: sip (5060), Dst Port: sip (5060) Session Initiation
Protocol
Status-Line: SIP/2.0 180 Ringing
Message Header
Max-Forwards: 70
Record-Route: <sip:172.16.100.20;lr=on;did=d53.8b77d2a>
<sip:172.16.100.20;lr=on;did=d53.8b77d2a>
To: <sip:1011 at ws20.racequeen.local>
<sip:1011 at ws20.racequeen.local> ;tag=1992049861
CSeq: 2 INVITE
Via: SIP/2.0/UDP
172.16.100.21:5060;branch=z9hG4bKdaac3bcf533d13cc42b7a6421db7f67c6376
From: <sip:1009 at ws20.racequeen.local>
<sip:1009 at ws20.racequeen.local> ;tag=fxo1xri9-3
Call-ID: 172.16.100.21_3_5421782881147155363
Contact: <sip:1011 at 172.16.100.20:45604;transport=udp>
<sip:1011 at 172.16.100.20:45604;transport=udp>
Content-Length: 0
No. Time Source Destination Protocol
Info
54 3.930376 172.16.100.20 172.16.100.21 SIP/SDP
Status: 200 OK, with session description
Frame 54 (656 bytes on wire, 656 bytes captured) Ethernet II, Src:
HonHaiPr_59:bf:7a (00:22:68:59:bf:7a), Dst: HonHaiPr_59:bf:74
(00:22:68:59:bf:74) Internet Protocol, Src: 172.16.100.20
(172.16.100.20), Dst: 172.16.100.21 (172.16.100.21) User Datagram
Protocol, Src Port: sip (5060), Dst Port: sip (5060) Session Initiation
Protocol
Status-Line: SIP/2.0 200 OK
Message Header
Max-Forwards: 70
Record-Route: <sip:172.16.100.20;lr=on;did=d53.8b77d2a>
<sip:172.16.100.20;lr=on;did=d53.8b77d2a>
To: <sip:1011 at ws20.racequeen.local>
<sip:1011 at ws20.racequeen.local> ;tag=1992049861
CSeq: 2 INVITE
Via: SIP/2.0/UDP
172.16.100.21:5060;branch=z9hG4bKdaac3bcf533d13cc42b7a6421db7f67c6376
From: <sip:1009 at ws20.racequeen.local>
<sip:1009 at ws20.racequeen.local> ;tag=fxo1xri9-3
Call-ID: 172.16.100.21_3_5421782881147155363
Contact: <sip:1011 at 172.16.100.20:45604;transport=udp>
<sip:1011 at 172.16.100.20:45604;transport=udp>
Content-Type: application/sdp
Content-Length: 158
Message Body
Session Description Protocol
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o): - 3344 3344 IN IP4
172.16.100.20
Session Name (s): Minisip Session
Time Description, active time (t): 0 0
Media Description, name and address (m): audio 30216 RTP/AVP
0
Connection Information (c): IN IP4 172.16.100.20
Media Attribute (a): fmtp:0 PCMU/8000
Media Attribute (a): rtpmap:0 PCMU/8000
No. Time Source Destination Protocol
Info
64 3.976924 172.16.100.21 172.16.100.20 SIP/SDP
Request: ACK sip:1011 at 172.16.100.20:45604;transport=udp, with session
description
Frame 64 (631 bytes on wire, 631 bytes captured) Ethernet II, Src:
HonHaiPr_59:bf:74 (00:22:68:59:bf:74), Dst: HonHaiPr_59:bf:7a
(00:22:68:59:bf:7a) Internet Protocol, Src: 172.16.100.21
(172.16.100.21), Dst: 172.16.100.20 (172.16.100.20) User Datagram
Protocol, Src Port: sip (5060), Dst Port: sip (5060) Session Initiation
Protocol
Request-Line: ACK sip:1011 at 172.16.100.20:45604;transport=udp SIP/2.0
Message Header
Max-Forwards: 69
Content-Length: 158
To: <sip:1011 at ws20.racequeen.local>
<sip:1011 at ws20.racequeen.local> ;tag=1992049861
Cseq: 2 ACK
Via: SIP/2.0/UDP
172.16.100.21:5060;branch=z9hG4bKdaac9271347a14484bd68fca9e4cc9a21e2a
Content-Type: application/sdp
Route: <sip:172.16.100.20;lr=on;did=d53.8b77d2a>
<sip:172.16.100.20;lr=on;did=d53.8b77d2a>
From: <sip:1009 at ws20.racequeen.local>
<sip:1009 at ws20.racequeen.local> ;tag=fxo1xri9-3
Call-Id: 172.16.100.21_3_5421782881147155363
Message Body
Session Description Protocol
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o): - 3344 3344 IN IP4
172.16.100.20
Session Name (s): Minisip Session
Time Description, active time (t): 0 0
Media Description, name and address (m): audio 30216 RTP/AVP
0
Connection Information (c): IN IP4 172.16.100.20
Media Attribute (a): fmtp:0 PCMU/8000
Media Attribute (a): rtpmap:0 PCMU/8000
I do not know what really is the problem why both parties cannot hear
each other. Please help me solve this.. Thank you very much..
Venkata Ramesh B wrote:
Hi Kristine,
The SDP has a problem that the rtpmap line is missing for
payload 101 and it is mandatory. Since you say that the INVITE is
accepted by the server, it is hard to say if that is the real problem.
Do you have the full wireshark trace ?
Best Regards,
Ramesh.
On Sat, Jul 25, 2009 at 9:38 AM, Kristine Regis
<kristine at racequeen.ph> wrote:
Hi, I hope anyone could help me figure out what's the
problem here.
I am currently developing a SIP Call. The flow of the
call from INVITE
to BYE is correct, as I assume since the server accepted
it - the server
is OpenSIPs. My SDP is as follows:
v=0
o=root 3457409648 3457409648 IN IP4 172.16.100.21
s=-
c=IN IP4 172.16.100.21
t=0 0
m=audio 5060 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
I have this SDP and the voice streaming cannot be done.
The caller and
the call cannot here each other. I don't know what is
the problem here
or if the SDP above is wrong.
I hope you could help me solve this problem. Thank you.
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