RE: [Sip] refer-06 question

["Vijay S Kamath" <vijay.kamath@wipro.com>]

Patrick,

You cannot delay the notification until the referenced request completes.
Quoting Sec 2.4.4: "The creation of a subscription as defined by [1] always results in an
immediate NOTIFY. "

So I suggest you follow your second suggestion.

Vijay

-----Original Message-----
From: patrick.mourot@online.fr [mailto:patrick.mourot@online.fr] 
Sent: Friday, July 26, 2002 5:24 PM
To: Vijay Kamath
Cc: sip@ietf.org
Subject: RE: [Sip] refer-06 question


vsk,

Thanks for the answer.
I understand both cases; but this does not light my way.
Let me put it in other words.

can i delay the notification until the referenced request completes? leading to send only 1 notification???? (assuming timers are OK).

Or am i oblige to send a 1rst notification, wait for completion of the 
referenced request and send a final notification ?

What is mandatory?

Patrick


Quoting Vijay S Kamath <vijay.kamath@wipro.com>:

> It can be either 1 or more, but at least 1.
> Qouting Section 2.4.7: "Each NOTIFY must contain a Subscription-State 
> header field as defined
>    in [2].  The final NOTIFY sent in response to a REFER MUST indicate
>    the subscription has been "terminated" with a reason of 
> "noresource"."
> 
> The final NOTIFY can also be the first NOTIFY.
> 
> Regards... Vijay
> 
> -----Original Message-----
> From: patrick.mourot@online.fr [mailto:patrick.mourot@online.fr]
> Sent: Friday, July 26, 2002 2:48 PM
> To: sip@ietf.org
> Subject: [Sip] refer-06 question
> 
> 
> Sir,
> 
> 
> In 2.4.5 § of refer-06 draft It is stated that a "A minimal, but 
> complete, implementation can respond with a single NOTIFY containing 
> either ...the
> body:
> SIP/2.0 200 OK if the reference was successful".
> 
> It seems to be in contradiction with § 3.10 saying that 
> "Alternatively, the subscription might only result in two NOTIFY 
> requests, the immediate NOTIFY and
> the NOTIFY carrying the final result of the reference".
> 
> Do we need 1 or 2 NOTIFY in a minimal implementation?
> 
> Best Regards,
> 
> Patrick
> 
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> 

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