Re: [Sip] Canceling REFER

["Tolga Asveren" <asveren@ulticom.com>]

What about sending SUBSCRIBE with Expires=0 , as described in RFC3265.
Afterall RFC3515 states also in 2.4.4 that for unsubscribing, the procedure
described in RFC3265 is valid.

   Tolga
--- "Mark Eastman (meastman)" <meastman@cisco.com> wrote:
> Hello,
>
> I have a question about how to deal with canceling a
> REFER.  Let's say I
> REFER Bob to Betty, but then decide I want to REFER
> Bob to someone else
> before the transfer is complete.  Are there existing
> call flows describing
> such behavior?  I know the REFER rfc states handling
> multiple refers is
> valid, but is that how one would handle this
> situation (Sending a new REFER
> with either a new target or perhaps method=CANCEL).
> If so, call flows
> describing such behavior would be nice.
>
> Thanks,
> Mark
>
>
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