[SIPForum-discussion] [Sip-implementors] Putting Record route in the responses

[Manpreet Singh]

Sanjay

Thanks for the response. I believe you were referring to Table 2 right? 

The reason I got confused was because the UAC I was testing with was a cisco
5300 which was sending the ACK to the contact address in the 503 which was
the UAS instead of the proxy where it sent the initial INVITE. It seems like
a bug.

Thanks
Manpreet

-----Original Message-----
From: Sanjay Sinha (sanjsinh) [mailto:sanjsinh at cisco.com] 
Sent: Wednesday, September 06, 2006 10:43 PM
To: Manpreet Singh; discussion at sipforum.org;
sip-implementors at cs.columbia.edu
Subject: RE: [Sip-implementors] Putting Record route in the responses

Record-Route header is used to send subsequent requests after dialog is
established. If Invite is rejected with an error response, there is no
dialog and no need for RR header in error response. You can refer to Table 3
in RFC 3261


-----Original Message-----
From: sip-implementors-bounces at cs.columbia.edu
[mailto:sip-implementors-bounces at cs.columbia.edu] On Behalf Of Manpreet
Singh
Sent: Wednesday, September 06, 2006 8:04 PM

To: discussion at sipforum.org; sip-implementors at cs.columbia.edu
Subject: [Sip-implementors] Putting Record route in the responses
Importance: High

Could someone point me to the part of the spec which talks about what all
headers are to be inserted in all the response to an INVITE or any other
request. I am bit lost trying to find the right explanation.
 
I am specifically looking for a case where a proxy inserts a Record-Route
header in the outgoing invite and the UAS rejects the INVITE with some 5xx
or a 4xx response. Now would the 4xx or 5xx response carry the R-R headers
from UAS to the proxy and then back to UAC? I have generally seen the
implementations where 100 doesnt carry and 18x carries it. 
 
thanks
 
Manpreet
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