[SIPForum-discussion] Knowing a SIP phone status

[M. Ranganathan]

On Mon, Dec 14, 2009 at 9:28 AM, Junaid Abid <junaid.abid at gmail.com> wrote:
> Hi Guys
>
> Is there a way to MONITOR SIP extensions using SIP or something?


That is an ill posed question.

You can do this provided your PBX supports a dialog package that
allows you to subscribe for Dialog events.

>
> What i mean is that there is a third party app with may be SIP stack and
> users(SIP Phones) with extension 200, 201, 202, can third party app know
> when a call is ringing on 200, answered, transferred to 201 etc?
>
> Thanks for your help.
>
> Regards
> Junaid
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-- 
M. Ranganathan