[SIPForum-discussion] sip stack?

[Robert Sparks]

There's nothing wrong with that.

Usually, it's because your SUBSCRIBE went through a proxy, so it's  
200 has to come back through that proxy. If the proxy did not record- 
route, the NOTIFY will
go straight to your endpoint. Hence it will likely arrive first.

Even without a proxy in the path of the SUBSCRIBE, it's possible for  
the NOTIFY to arrive first (There's nothing that requires the  
notifier to send the 200-SUBSCRIBE before the initial NOTIFY).

RjS


On Jan 21, 2007, at 2:30 AM, pbachdan wrote:

> Hi All,
>
> I wrote a small sip application to send subscriptions but I always  
> receive the notification from the other end before the 200OK  
> response of the subscription.
> Can someone please explain why this behavior occurs ? Thanks.
>
> Regards,
> pbachdan
>
> On 1/20/07, mathi <mathi_sidh at yahoo.co.in> wrote:
> hi all,
> i am new to this sip.
> every body ask about sipstack..
> can anybody give description about sipstack?
> sipstack is structure of layer or coding style?
> thanks
>
>
> Regards,
> Mathi
> Here's a new way to find what you're looking for - Yahoo! Answers
>
>
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