Hi Rockson,
Thanks for your reply.
By my doubt come from other scenario.like for CANCEL request RFC 3261
specifies under said line for Via header
Sec 9.1
A CANCEL constructed by a client MUST have only a single Via header field value
matching the top Via value in the request being cancelled.
So here RFC used the word "single" before "Via header" which is not present in
the line you mentioned in Sec 8 of RFC 3261
And another part it is saying that "top Via value in the request being
cancelled." which it seems like request can contain multiple "Via header" value
in initial INVITE request among which top "Via header" value has to be selected
Thanks
Sourav
----- Original Message ----
From: Rockson Li (zhengyli) <[EMAIL PROTECTED]>
To: Sourav Dhar Chaudhuri <[EMAIL PROTECTED]>;
[email protected]
Sent: Thursday, 18 September, 2008 12:43:16 PM
Subject: RE: [Sip-implementors] Can multiple Via header be present in
initialINVITE request ?
I think the answer is "no".
RFC3261 mandates UAC only insert a Via header when sending request.
Sec 8
When the UAC creates a request, it MUST insert a Via into that request.
And respnse with multiple Via would be rejected by UAC.
Sec 8.1.3.3
If more than one Via header field value is present in a response, the
UAC SHOULD discard the message.
The presence of additional Via header field values that precede
the originator of the request suggests that the message was
misrouted or possibly corrupted.
FYI
-Rockson
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Sourav Dhar Chaudhuri
Sent: Thursday, September 18, 2008 3:05 PM
To: [email protected]
Subject: [Sip-implementors] Can multiple Via header be present in
initialINVITE request ?
Hi,
Can multiple Via header be present in initial INVITE request ?
I mean to say when first time INVITE request is generated from UAC
without traversing any PROXY can contain multiple Via header ?
If yes then what is the need of having multiple Via header in initial
INVITE request?
Thanks
Sourav
Unlimited freedom, unlimited storage. Get it now, on
http://help.yahoo.com/l/in/yahoo/mail/yahoomail/tools/tools-08.html/
_______________________________________________
Sip-implementors mailing list
[email protected]
https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
Unlimited freedom, unlimited storage. Get it now, on
http://help.yahoo.com/l/in/yahoo/mail/yahoomail/tools/tools-08.html/
_______________________________________________
Sip-implementors mailing list
[email protected]
https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
