

=20
>You make it sound like there is some extra signaling involved=20
>in the subscriptions.  I thought we were talking about=20
>*implicit* subscriptions.  The only extra "signaling" would=20
>be event package negotiation exchange, presumably in headers=20
>in the Invite and responses.  Then a Notify for the events. =20
>Or really instead of a NOTIFY, it could be a new method=20
>called "Invite-based Notification Function Output" or "INFO"=20
>for short. :)

YES! :)

Regards,

Christer

> > -----Original Message-----
> > From: Salvatore Loreto [mailto:[email-masked]]
> > Sent: Saturday, October 13, 2007 4:09 AM
> > To: Francois Audet
> > Cc: IETF SIP List; Christer Holmberg; Dean Willis
> > Subject: RE: [Sip] Francois' counter to INFO (was Re: What are we=20
> > arguing about when we say INFO?)
> >
> >
> >
> > On Fri, 2007-10-12 at 09:50 -0500, Francois Audet wrote:
> > >
> > > > the proposal is interesting.
> > > > However there should be cases where you need to send whatever=20
> > > > information in both directions, or cases where when you send an=20
> > > > information via Notify you need to receive back some=20
> information=20
> > > > (e.g.
> > > > the fact that you receive a 200Ok as answer to the Notify it is=20
> > > > not enough).
> > > > How do you think your proposal should work in those cases ?
> > > > perhaps with
> > > > 2 subscription one in each direction?
> > >
> > > Yes.
> >
> > OK, I agree on this.
> > But maybe should be interesting a mechanism to discriminate=20
> when you=20
> > need 2 subscription one in each direction, when one it is=20
> enough and=20
> > in the case of only one subscription the possibility to choose in=20
> > which direction you want to start it.
> >
> >
> >
> >
> > _______________________________________________
> > Sip mailing list  https://www1.ietf.org/mailman/listinfo/sip
> > This list is for NEW development of the core SIP Protocol Use=20
> > [email-masked] for questions on current sip Use=20
> > [email-masked] for new developments on the application of sip
>=20

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