Iñaki Baz Castillo wrote:
> 2010/7/6 Jean-Hugues Royer <jhro...@joher.com>:
>> If a subscription and invite usage are sharing a dialog, sending a
>> refresh SUBSCRIBE with a different contact will cause reINVITEs from the
>> peer to go to that different contact.
> 
> What does it mean "a subscription and invite usage are sharing a
> dialog"? does it mean two dialog, an INVITE dialog and a SUBSCRIBE
> dialog, sharing the same From/to-tags and Call-ID? how could it be
> useful such "experiment"??

It means one dialog (Callid, from-tag, to-tag) and two distinct usages 
of that - e.g. INVITE and SUBSCRIBE.

The easiest way to encounter that in the wild is to send a REFER in an 
INVITE-dialog-usage, thus getting an (implicit) subscribe-dialog-usage 
to the refer event in the same dialog.

        Thanks,
        Paul

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