[SIPForum-discussion] CANCEL request will be send from UAC to UASat that time what response UAC will get

[Robert Sparks]

This is incorrect.

It is quite possible to CANCEL a mid-dialog INVITE.

(Most reINVITEs will complete as quickly as possible in machine time,  
so the likelyhood of a successful cancellation is small, but there are
  scenarios where a user has to provide input to the UA before the  
reINVITE can be processed.)

RjS

On Apr 20, 2007, at 9:21 AM, <alexzhang at gdnt.com.cn> wrote:

> Any CANCEL request received for a non-initial INVITE transaction is  
> responded to with an immediate 200 OK with no further action taken  
> (i.e. no transactions are cancelled).
>
> -- A l e x
>
>
> From: discussion-bounces at sipforum.org [mailto:discussion- 
> bounces at sipforum.org] On Behalf Of William Prusty
> Sent: Friday, April 20, 2007 2:50 PM
> To: discussion at sipforum.org
> Subject: [SIPForum-discussion] CANCEL request will be send from UAC  
> to UASat that time what response UAC will get
>
> Suppose call has been established . if CANCEL request will be send  
> from UAC to UAS at that time what response UAC will get
>
>
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>
> Plz answer ASAP
>
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> With regards
>
>                              william
>
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