Hi Gadi,
But there is no pending transaction to wait for Timer E to
time-out, coz first SUBSCRIBE has already got final response. Hence
subscriber has to resend subscribe and wait till Timer E times out and
then terminate subscription dialog.
Rgds,
Manju
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Gadigeppa
Malagund
Sent: Wednesday, July 19, 2006 12:43 PM
To: Sip-Implementors
Subject: Re: [Sip-implementors] question regarding Subscription State
Hi,
If Subscriber doesn't receive NOTIFY (Subscription-State: terminated)
from
notifier for the following scenario mentioned, then Notifier has died.
So
re-Sending UnSubscribe doesn't help as definately it will not be
responded
by Notifier.
So Subscriber should wait for Non-invite client transaction duration
i.e.
Timer E and terminate the Subscription Dialog.
Regards,
Gadi
On 7/13/06, zhang jw <[EMAIL PROTECTED]> wrote:
>
> HI Sreejesh,
> it is a very interesting case, i think if there if no NOTIFY
received
> with terminated state, the notifier maybe crashed, so the
> subscriber should
> resend the SUBSCRIBE , if the transaction time out, it should be
treated
> as
> 408, this dialog usage should be terminated.
>
> On 7/12/06, Sreejesh <[EMAIL PROTECTED]> wrote:
> >
> > Hi All,
> >
> > As per Rfc 3265,
> >
>
------------------------------------------------------------------------
-
> > A subscription is destroyed when a notifier sends a NOTIFY request
> > with a "Subscription-State" of "terminated".
> > A subscriber may send a SUBSCRIBE request with an "Expires" header
> > of 0 in order to trigger the sending of such a NOTIFY request;
> > however, for the purposes of subscription and dialog lifetime, the
> > subscription is not considered terminated until the NOTIFY with a
> > "Subscription-State" of "terminated" is sent.
> >
>
------------------------------------------------------------------------
-
> >
> > Case I:
> > After an Unsubscribe (Expires=0) Request, if the Subscriber does
> > not receive a NOTIFY with a "Subscription-State" of "terminated",
when
> > will
> > the subscription be removed. Is there any specific Timeout period,
after
> > which
> > the Subscriber himself removes the Subscription..
> >
> > Case II:
> > The same holds good for Subscription Poll Requests, if the NOTIFY
were
> > not to
> > be received, when will the Subscription be removed at Subscriber
end.
> >
> > Additionally, if the NOTIFY was received with a "Subscription-State"
of
> > "active" in
> > either of the above cases, how should the Subscriber behave??
> >
> > Thankz in advance.....
> > Sreejesh
> > _______________________________________________
> > Sip-implementors mailing list
> > [email protected]
> > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
> >
> _______________________________________________
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> [email protected]
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>
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