Check why the attribute line in SDP of 200 ok "a=rtpmap:0 PCMU/8000/1" is 
before the media line " m=audio 16000 /RTP/AVP  0 101".  This might have made 
the phone to treat the SDP as Bad SDP in 200 OK. 

This is one limitation of SIP where the caller cannot tell why it did not like 
the SDP. May be the Bye Reason header can be used to indicate these type of 
problems.

Kasturi

-----Original Message-----
From: Siddhardha Garige [mailto:[EMAIL PROTECTED] 
Sent: Friday, November 03, 2006 10:36 AM
To: sip-implementors@cs.columbia.edu
Subject: [Sip-implementors] whats wrong with this 200 OK? - trace included


Hello all,

I am trying a new osip based SIP app with cisco 7960. 
Cisco generated an invite and sip app replied with 200OK. Cisco responded with 
ACK and goes into fast busy tone sends a BYE. 

Here is INVITE from Cisco, 200OK from osip client and ACK from cisco. Anyone 
see any problem ? 

Thanks in advace,

                        INVITE sip:[EMAIL PROTECTED] SIP/2.0
 Via: SIP/2.0/UDP 192.168.10.125:5060;branch=z9hG4bK56631afa
 From: "4600" <sip:[EMAIL PROTECTED]>;tag=0015f914111300df6d7e34b8-0149920e
 To: <sip:[EMAIL PROTECTED]>
 Call-ID: [EMAIL PROTECTED]
 Max-Forwards: 70
 Date: Fri, 03 Nov 2006 16:17:57 GMT
 CSeq: 101 INVITE
 User-Agent: Cisco-CP7960G/8.0
 Contact: <sip:[EMAIL PROTECTED]:5060;transport=udp>
 Expires: 180
 Accept: application/sdp
 Allow: ACK,BYE,CANCEL,INVITE,NOTIFY,OPTIONS,REFER,REGISTER,UPDATE
 Supported: replaces,join,norefersub
 Content-Length: 277
 Content-Type: application/sdp
 Content-Disposition: session;handling=optional
 
 
 v=0
 o=Cisco-SIPUA 10343 0 IN IP4 192.168.10.125
 s=SIP Call
 t=0 0
 m=audio 27398 RTP/AVP 0 8 18 101
 c=IN IP4 192.168.10.125
 a=rtpmap:0 PCMU/8000
 a=rtpmap:8 PCMA/8000
 a=rtpmap:18 G729/0
 a=fmtp:18 annexb=no
 a=rtpmap:101 telephone-event/8000
 a=fmtp:101 0-15
 a=sendrecv
 
 
 SIP/2.0 200 OK
 Via: SIP/2.0/UDP 192.168.10.125:5060;branch=z9hG4bK56631afa
 From: "4600" <sip:[EMAIL PROTECTED]>;tag=0015f914111300df6d7e34b8-0149920e
 To: <sip:[EMAIL PROTECTED]>;tag=2001636689
 Call-ID: [EMAIL PROTECTED]
 CSeq: 101 INVITE
 Contact: <sip:[EMAIL PROTECTED]:5050>
 Allow: CANCEL, BYE
 Content-Type: application/sdp
 Content-Length:   220
 
 
 v=0
 o=5000 11625705840  11625705840  IN IP4 192.168.10.112
 s=EDGE VM Session
 c=IN IPV4 192.168.10.112
 t=0 0
 a=rtpmap:0 PCMU/8000/1
 m=audio 16000 /RTP/AVP  0 101
 a=rtpmap:101 telephone-event/8000
 a=fmtp:101 0-15
 
 
 ACK sip:[EMAIL PROTECTED] SIP/2.0
 Via: SIP/2.0/UDP 192.168.10.125:5060;branch=z9hG4bK78c4d355
 From: "4600" <sip:[EMAIL PROTECTED]>;tag=0015f914111300df6d7e34b8-0149920e
 To: <sip:[EMAIL PROTECTED]>;tag=2001636689
 Call-ID: [EMAIL PROTECTED]
 Max-Forwards: 70
 Date: Fri, 03 Nov 2006 16:17:57 GMT
 CSeq: 101 ACK
 User-Agent: Cisco-CP7960G/8.0
 
BYE sip:[EMAIL PROTECTED] SIP/2.0
Via: SIP/2.0/UDP 192.168.10.125:5060;branch=z9hG4bK29f3fb2a
From: "4600" <sip:[EMAIL PROTECTED]>;tag=0015f914111300e00ea5cda7-51534e9e
To: <sip:[EMAIL PROTECTED]>;tag=1529264891
Call-ID: [EMAIL PROTECTED]
Max-Forwards: 70
Date: Fri, 03 Nov 2006 16:24:17 GMT
CSeq: 102 BYE
User-Agent: Cisco-CP7960G/8.0
Content-Length: 0


SIP/2.0 200 OK
Via: SIP/2.0/UDP 192.168.10.125:5060;branch=z9hG4bK3933ed52
From: <sip:[EMAIL PROTECTED]>;tag=0015f914111300e16dcd1a9b-2be26740
To: <sip:[EMAIL PROTECTED]>
Call-ID: [EMAIL PROTECTED]
CSeq: 284 REGISTER
Expires: 1800
Content-Length: 0





" Well, look at it this way! If you want to make a baby cry, first you give it 
a lollipop. Then you take it away! 
If you never give it a lollipop to begin with, it would have nothing to cry 
about! "

-Jerome  'Chef ' McElroy
South Park.
______________________________________________
Siddhardha Garige
www.luminepixels.com


        
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