Re: [Sip-implementors] CANCELing an INVITE

Vasudeva Mon, 10 Jan 2005 23:04:28 -0800

Hi Partha,

   Thank you very much for the clarification.

Regards
Vasu.

PS:  more details could be found in section 15.

----- Original Message ----- From: <[EMAIL PROTECTED]> To: "Vasudeva" <[EMAIL PROTECTED]> Sent: Monday, January 10, 2005 8:35 PM Subject: Re: [Sip-implementors] CANCELing an INVITE

Hi Vasu,
Please read inline
Regards
Partha
"Vasudeva" <[EMAIL PROTECTED]> To <[EMAIL PROTECTED]> 01/10/2005 04:12 cc PM Subject Re: [Sip-implementors] CANCELing an INVITE
Hi,
   According to Section 9.1, (refer below)
       "The following procedures are used to construct a CANCEL request.
The
       Request-URI, Call-ID, To, the numeric part of CSeq, and From header
       fields in the CANCEL request MUST be identical to those in the
       request being cancelled, including tags."
   The INVITE itself could set the To-Tag in case of re-INVITE.
   In that case, the CANCEL MUST have the To-Tag as mentioned in section
9.1.
<Partha>  CANCEL is not allowed in the case of re-Invite. CANCEL is
alllowed only for the INVITE request  </Partha>
Regards,
Vasu.
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: "Rohit Sonalkar" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>; <
[email protected]>
Sent: Monday, January 10, 2005 10:50 AM
Subject: Re: [Sip-implementors] CANCELing an INVITE
Hi Rohit,
The CANCEL should not have To tag as the CANCEL request must be identical
to the correponding  INVITE Request
as explained in section 9.1.
Thanks
Partha
"Rohit Sonalkar"

<[EMAIL PROTECTED]

m> To

Sent by: <[email protected]>

sip-implementors- cc

[EMAIL PROTECTED]

ia.edu Subject

[Sip-implementors] CANCELing an

INVITE

01/10/2005 09:39

AM
If an INVITE has received a provisional response, should the CANCEL sent
now include the tag in the To header that appeared in the provisional
response. Section 9 says the To header should match the request being
cancelled, so I am not sure.
Thanks.
Rohit
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