Re: Make a call

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From: Gero Gräber (graebge_at_web.de)
Date: 07/12/04 

Date: Mon, 12 Jul 2004 21:39:52 +0200

> So, is it that you may be getting a request for user Joe via UDP, whose
> phone and number you know, and you want to use his line to connect Joe with
> an external party?

Yes, that´s exactly what I want to do.
>
> Just by the way, a Wall Street client of mine - whose 6000 employees had to
> flee their offices in the 9/11 disaster - wanted me to do just that. Not
> wanting the administrative headaches of a server controlling 6000 employee
> lines we put up four servers each controlling about 150 different lines (max
> 600 concurrent calls or 10% of the population) spread across two data
> centers. When the server got the network request for a call from Joe, it
> would look up Joe's number, call him on the first available line, create a
> conference from that call and then call the remote number in the request and
> finally add the second call to the conference. That done we gave the user a
> way of specifying his current location so that he could make business calls
> while traveling or working at home.
>
> Most of the telephony that you need to do that is demonstrated in the
> Platform SDK's Dialer sample - though not the conferencing.
>
I will look in this sample. Thanks a lot for this, Will.

> The same sample demonstrates much of what it would take to do what (I think)
> you describe. I think you need to use the phone API as well to do things
> like taking the phone of the hook and routing the audio to the speaker
> rather than hand set. We didn't do it that way because we wanted to impose
> as few requirements on the hardware as possible to make the application
> useful in the event of another disaster. :-(
>
> Regards,
> Will
>

My main problem is, that I don´t know how to specify (and where) the
telephone number for a certain user in the server process.

Can I ask the PBX TSP for that? Is it possible to search for a line,
that belongs to a certain local telephone number? I think the logic
connection between the telephone of a user and the belonging telephone
number is available through the TSP. I think this is really a basic
problem.

Thanks and Greetings

Gero

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