Hi Vivek,
In first case, request URI will be set as 'sip:1...@abc.com' and Route header 
will have 'sip:proxy2.com' as loose router.
In second case, request URI will be set as 'sip:proxy2.com' and Route header 
will have 'sip:1...@abc.com' as strict router.

Regards,
Alok Tiwari
Aricent
-----Original Message-----
From: sip-implementors-boun...@lists.cs.columbia.edu 
[mailto:sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of Vivek Batra
Sent: Wednesday, November 07, 2012 11:55 AM
To: sip-implementors@lists.cs.columbia.edu
Subject: [Sip-implementors] What will be set in Request-URI with respect to 
loose and strict routing

Hi Folks,

UA1 --> P1 --> P2 --> UA2

1. UA2 gets INVITE message as follows;

 INVITE sip:1...@xyz.com
      Contact: sip:1...@abc.com
      Record-Route: <sip:proxy2.com;lr>
      Record-Route: <sip:proxy1.com;lr>

Question is "When UA2 generates any message within dialog say BYE, Request-URI 
will be set to 'sip:1...@abc.com' or 'sip:proxy2.com'? This is a case where 
proxy2 follows loose routing.

2. UA2 gets the INVITE message as follows;

 INVITE sip:1...@xyz.com
      Contact: sip:1...@abc.com
      Record-Route: <sip:proxy2.com>
      Record-Route: <sip:proxy1.com;lr>

Question is "When UA2 generates any message within dialog say BYE, Request-URI 
will be set to 'sip:1...@abc.com' or 'sip:proxy2.com'? This is a case where 
proxy2 follows strict routing.

Will appriecate your comments.

Best Regards,
Vivek Batra
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