[SIPForum-discussion] Sip 400 Bad Request

[Mark Holloway]

Perhaps the switch doesn't like loose routing or has a specific implementation of it?  Do you have the ability to recreate this type of Invite and try ;lr?  The last time I looked RFC 3261 doesn't go beyond ;lr and therefore lr=on may be the issue.

On Jun 24, 2011, at 11:41 AM, Ryan Merideth wrote:

> Looking for help for an INVITE header problem. Customer sends us an INVITE and our network returns an immediate SIP 400 bad request. I have deteremined that this line is what our switch does not like (Route: sip:10.32.202.54;lr) but I do not know why. Any ideas? Thanks in advance.
> 
> Ip's and personal information has been changed:
> 
> INVITE sip:12127773456 at 10.32.202.55 SIP/2.0
> Record-Route: <sip:10.32.202.54;lr=on;ftag=cba-003a-4e04ce74>
> Via: SIP/2.0/UDP 10.32.202.54;branch=z9hG4bK3a37.f12.0
> Via: SIP/2.0/UDP 166.170.242.72;branch=z9hG4bK60173a60ce74
> From: 1234567891 <sip:mistan%4gmail.com at ssxx.xxxx.com>;tag=cba-003a-4e04ce74
> To: <sip:12127773456 at 10.32.202.55>
> Call-ID: f453cf519dc2ed97-003a-4e04ce74-dd0d at 166.170.242.72
> CSeq: 1308937845 INVITE
> Contact: 1234567891 <sip:mistan%4gmail.com at 166.170.242.72>
> Date: Fri, 24 Jun 2011 17:50:44 GMT
> User-Agent: BRSIP v3.0.2.2
> Route: sip:10.32.202.54;lr
> Max-Forwards: 69
> Allow: INVITE, ACK, CANCEL, BYE, OPTIONS, INFO, SUBSCRIBE, NOTIFY
> Allow-Events: keep-alive, message-summary
> Supported: timer
> Session-Expires: 600
> Min-SE: 120
> Expires: 300
> Content-Type: application/sdp
> Content-Length: 216
> P-hint: rr-enforced
> 
> v=0
> o=BRSDP 58 58 IN IP4 166.170.242.72
> s=BRSDP Session
> c=IN IP4 166.170.242.72
> t=0 0
> m=audio 10002 RTP/AVP 0 8 101
> a=rtpmap:0 PCMU/8000
> a=rtpmap:8 PCMA/8000
> a=rtpmap:101 telephone-event/8000
> a=fmtp:101 0-15
> 
> 
> 
> -- 
> Ryan Merideth
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