Re: [Sip-implementors] CANCEL before 1XX response ?

Wed, 18 Jan 2006 11:17:34 -0800

Hi Chenna,
 
Please look into the sec 9.1 of RFC 3261 for UAC behvaiour with Cancel
"  If no provisional response has been received, the CANCEL request MUST    NOT be sent; rather, the client MUST wait for the arrival of a    provisional response before sending the request."

Regards

Partha




[EMAIL PROTECTED] wrote: -----

To: [email protected]
From: NC Reddy <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
Date: 01/18/2006 09:12PM
Subject: [Sip-implementors] CANCEL before 1XX response ?

Hi,

1. Can  UAC send CANCEL request before 1xx response for INVITE msg?.

   If no provisional response has been received, the CANCEL request MUST
   NOT be sent; rather, the client MUST wait for the arrival of a
   provisional response before sending the request.

2. If UAC sent CANCEL before 1XX response, what's the behaviour of the UAS?

Thanks&Regards
Channa

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