[Users] BAD REQUEST

Jose Gil Navarrete gijoenav at yahoo.com.mx
Tue Oct 24 01:57:45 CEST 2006


Hi.

My problem is the next. When my sip server send the message INVITE to the phone, the phone always respond with 400 Bad Request, I think is something wrong in the message, in the UDP message the Checksum always is corrupted by the sip server, is it the problem? or is something else in the sip message? How I can correct this?

this is the trace:

User Datagram Protocol, Src Port: 5060 (5060), Dst Port: 7191 (7191)
Source port: 5060 (5060)
Destination port: 7191 (7191)
Length: 1057
Checksum: 0x879f [incorrect, should be 0xb0cd]
Session Initiation Protocol
Request-Line: INVITE sip:192.168.1.8:7191 SIP/2.0
Method: INVITE
Resent Packet: True
Suspected resend of frame: 9
Message Header
Record-Route: <sip:192.168.1.20;lr=on;ftag=db79a2e2>
Via: SIP/2.0/UDP 192.168.1.20;branch=z9hG4bKdfe7.2eeeaa64.0
Via: SIP/2.0/UDP 192.168.1.7:7191;branch=z9hG4bKN2IVzrueyM
Max-Forwards: 69
Content-Type: application/sdp
To: <sip:2109075 at 192.168.1.20>
From: "4422109087" <sip:4422109087 at 192.168.1.20>;tag=db79a2e2
Call-ID: eea4130a-277bd7f8 at 192.168.1.7
CSeq: 1503273304 INVITE
Allow: INVITE, ACK, CANCEL, MESSAGE, OPTIONS, BYE, UPDATE, REFER, SUBSCRIBE, NOTIFY, SERVICE
User-Agent: PHONE-UserAgent
Contact: "4422109087" <sip:4422109087 at 192.168.1.7:7191>
P-hint: usrloc applied
Message body
Session Description Protocol
Session Description Protocol Version (v): 0
Owner/Creator, Session Id (o): ntzum 717537891 1011557901 IN IP4 192.168.1.7
Session Name (s): -
Connection Information (c): IN IP4 192.168.1.7
Bandwidth Information (b): CT:29
Time Description, active time (t): 0 0
Media Description, name and address (m): audio 49648 RTP/AVP 4 96 97 98
Media Attribute (a): sendrecv
Media Attribute (a): rtpmap:4 G723/8000
Media Attribute (a): rtpmap:96 AMR/8000
Media Attribute (a): rtpmap:97 X-G723-7200/8000
Media Attribute (a): rtpmap:98 telephone-event/8000
Media Attribute (a): fmtp:98 0-15
Media Description, name and address (m): video 49650 RTP/AVP 99 100 34
Media Attribute (a): sendrecv
Media Attribute (a): rtpmap:99 H264/90000
Media Attribute (a): fmtp:99 packetization-mode=1
Media Attribute (a): rtpmap:100 H263-1998/90000
Media Attribute (a): rtpmap:34 H263/90000

Regards!

 		
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