[Asterisk-Users] door phone

[Jon Pounder]

> Hi,
>
> Anyone know anything about Asterisk's support for door phones? Receiving
> the call from the door intercom system, opening the door, etc?
>
> Any hardware recommendations? I understand that the equipment we have
> now is Panasonic proprietary and came with the currently deployed
> Panasonic TD12-32 pbx.
>

I just use an ordinary "disposable" phone, and put the zap channel in
immediate mode. lift the phone and it starts to ring the extensions in the
context it jumps to. I can also call the doorphone just like any other
extension and it rings when I do so. Basically the keypad is ignored on
the phone.

as for door release, I have an electric strike on my dsc alarm system, but
I have just not gotten around to making an agi that I can use to flip a
bit on the parallel port and have that release the strike as well.

(2n2222, a 10k resistor, and a pcb mount 12v relay, and a flyback diode,
hooked up to the data bit, and in parallel with the alarm release relay.)



>
>
> We intend to deploy Asterisk in a 72 extensions + 16 trunks in a while,
> so any info will be great.
>
>
>
> thanks
>
>