Rastogi, Vipul (Vipul) wrote:
> Hi,
> Should not receipt of SUBSCRIBE with Expires:0 in an out of dialog,
> results to failure response and polling ?
Whether it results in a failure depends on whether there is something
wrong with it. There is nothing intrinsicly wrong with what you
describe. I would expect the normal result to be a success, and a single
NOTIFY announcing the end of the subscription. That is commonly referred
to as a "polling" subscribe. If it fails it won't result in polling
because in that case there will be no NOTIFY.
Paul
> vipul
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Paul Kyzivat
> Sent: Friday, June 20, 2008 10:31 PM
> To: Dushyant Godse
> Cc: [email protected]
> Subject: Re: [Sip-implementors] Receiving NOTIFY on SIP register
> message? Is this proper behavior of registrar
>
>
>
> Dushyant Godse wrote:
>> Hello
>>
>> Can SIP REGISTERED end points receive NOTIFY event messages from the
>> registrar? Is REGISTER treated like a SUBSCRIBE (subscription) message
>
>> here by the registrar? I am trying to locate exact RFC reference here
>> or is registrar behavior incorrect?
>
> You don't get this functionality simply by registering.
> You can subscribe to reg events. See rfc 3680. But of course your
> registrar also has to implement that. Some do, some don't.
>
> Paul
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