[SIPForum-discussion] SDP Message in SIP problem. Please Help.
Kristine Regis
kristine at racequeen.ph
Tue Jul 28 07:09:40 UTC 2009
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>
Contact: <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>;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>;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>;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>;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>;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",
response="11238a9c03294b7a304d2746d7473168"
Content-Length: 222
To: <sip:1011 at ws20.racequeen.local>
Contact: <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>;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>
Cseq: 2 INVITE
Via: SIP/2.0/UDP
172.16.100.21:5060;branch=z9hG4bKdaac3bcf533d13cc42b7a6421db7f67c6376
From: <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>
To: <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>;tag=fxo1xri9-3
Call-ID: 172.16.100.21_3_5421782881147155363
Contact: <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>
To: <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>;tag=fxo1xri9-3
Call-ID: 172.16.100.21_3_5421782881147155363
Contact: <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>
To: <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>;tag=fxo1xri9-3
Call-ID: 172.16.100.21_3_5421782881147155363
Contact: <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>;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>
From: <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
> <mailto: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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