Re: [Sip] CANCEL FAQs

["Ranjit Avasarala" <ranjit.avasarala@bplmail.com>]

u cannot send CANCEL for re-invite as u won't be getting any ringing tone as
response

Ranjit
----- Original Message -----
From: Suresh Arora <suresh.arora@baypackets.com>
To: Medhavi Bhatia <mbhatia@nextone.com>; <sip@ietf.org>
Sent: Wednesday, July 17, 2002 6:14 PM
Subject: RE: [Sip] CANCEL FAQs


> I think UAS can send CANCEL to UAC for a re-INVITE (if requested session
> characteristics are not supported by Server).
>
> -Suresh
>
> -----Original Message-----
> From: sip-admin@ietf.org [mailto:sip-admin@ietf.org]On Behalf Of Medhavi
> Bhatia
> Sent: Wednesday, July 17, 2002 9:21 AM
> To: sip@ietf.org
> Subject: Re: [Sip] CANCEL FAQs
>
>
> This stuff generally belongs to the implementor's list: sip-implementors
> <sip-implementors@cs.columbia.edu>
>
> Generally CANCEL should not be used for transactions which are bound to
> complete
> quickly, and never for transactions for which you havent received a
> provisional (1xx)
> response. So the answer for (1) would be: probably not. Also the UAS
cannot
> cancel
> a transaction started by the UAC (I guess that's what you meant), so it
> cannot generate
> the CANCEL ever.
>
> ----- Original Message -----
> From: "Sp.Raja" <spraja@isofttechindia.com>
> To: <sip@ietf.org>
> Sent: Tuesday, July 16, 2002 6:25 AM
> Subject: [Sip] CANCEL FAQs
>
>
> > Please help me out by answering these questions.
> >
> > 1. Can CANCEL be used to cancel a bye ?
> >
> > 2. Can CANCEL be send by the called entity (UAS) ? If yes then under
what
> > circumstances
> >
> > - Sp.Raja
> >
>
>
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>
>
>
> _______________________________________________
> Sip mailing list  https://www1.ietf.org/mailman/listinfo/sip
> This list is for NEW development of the core SIP Protocol
> Use sip-implementors@cs.columbia.edu for questions on current sip
> Use sipping@ietf.org for new developments on the application of sip


_______________________________________________
Sip mailing list  https://www1.ietf.org/mailman/listinfo/sip
This list is for NEW development of the core SIP Protocol
Use sip-implementors@cs.columbia.edu for questions on current sip
Use sipping@ietf.org for new developments on the application of sip