Hi,

I am not too sure about this but can you check the syntax of the from
and the to header fields in your invite,is nested addr-spec allowed in
rfc 2822,because once the local and the domain address are both resolved
can the parser continue parsing another nested angled bracket?


Thanks and regards,
 
Shamik Saha
Project Engineer
Voice Protocols
Cell :  +91-9886704155

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of
cool goose
Sent: Thursday, May 14, 2009 5:17 AM
To: [email protected]
Subject: [Sip-implementors] 400 Bad Request

Hi Guys,

I am trying to make a call from a soft phone to a physical phone and for
some reason the PBX responds with 400 Bad Request for the Invite
generated by the soft phone. I have no idea whether the Invite violates
any SIP ABNF.
Below are the SIP messages both Invite and 400 Bad request. Any help
would be greatly appreciated.

INVITE sip:[email protected] <sip%[email protected]> SIP/2.0
Via: SIP/2.0/UDP 192.168.5.6:5060;rport;branch=z9hG4bK2f123c8
To: <sip:[email protected] <sip%[email protected]>>
From: "SipTool"<sip:[email protected]
<sip%[email protected]>>;tag=4c75524c
Call-ID: [email protected]
Max-Forwards: 70
CSeq: 1 INVITE
Allow: INFO,REFER,NOTIFY,INVITE,ACK,OPTIONS,BYE,CANCEL
Contact: <sip:[email protected]:5060>
User-Agent: V5/1.0.5
Accept:
application/dtmf-relay,application/sdp,text/plain,message/sipfrag,applic
ation/sip
Content-Type: application/sdp
Supported: tdialog,replaces,norefersub,histinfo
Content-Length: 259

v=0
o=ipr1E682261B6 9970982 9970982 IN IP4 192.168.5.6
s=-
c=IN IP4 192.168.5.6
t=0 0
m=audio 8000 RTP/AVP 18 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000
a=ptime:20
a=fmtp:101 0-16

400 Bad Request from the PBX.

SIP/2.0 400 Bad Request
Via: SIP/2.0/UDP 192.168.5.6:5060;rport;branch=z9hG4bK2f123c8
From: "SipTool"<sip:[email protected]
<sip%[email protected]>>;tag=4c75524c
To: <sip:[email protected] <sip%[email protected]>>;tag=e3ef61ca19
Call-ID: [email protected]
CSeq: 1 INVITE
User-Agent: PBX 2.0
Content-Length: 0


Thanks in Advance for your time,
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