"Paul Kyzivat" <[EMAIL PROTECTED]> said: > yes indeed, you use a SUBSCRIBE to refresh a REFER subscriptin. > > Frank Shearar wrote: > > Say I want to transfer someone's call. I send a REFER, establishing an > > implicit subscription with the transferee. The transferee tells me > > "Subscription-State: pending;expires=60". The transferee takes longer than, > > say, 45 seconds to transfer, and so I try to refresh the subscription.
<snip> > > Does this mean that I send a SUBSCRIBE to refresh a REFER's subscription? > > That seems wrong, since RFC 3515 also says (section 2.4.4) > > > > REFER is the only mechanism that can create a subscription to event > > refer. If a SUBSCRIBE request for event refer is received for a > > subscription that does not already exist, it MUST be rejected with a > > 403. > > The key above is "for a subscription that does not exist". When > refreshing, the subscription should already exist. Ah! That indeed is the magic phrase. Thanks very much! frank _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
