[asterisk-users] IP door opening devices

[Gordon Henderson]

On Thu, 24 Jul 2008, Tzafrir Cohen wrote:

> On Thu, Jul 24, 2008 at 10:25:34AM +0100, Chris Bagnall wrote:
>> Greetings list,
>>
>> We have a client with an analogue door intercom/opening unit which
>> we're attempting to replace with an IP variant. The existing unit
>> has the following functionality:
>>
>> 1) Intercom - visitor hits "call", talks to operator
>> 2) Door opening - operator can open the door by dialling a 4-digit
>>    PIN followed by * (the door unit interprets the DTMF tones)
>> 3) Door opening - the door unit has a numeric keypad to enable
>>    approved persons to enter by entering the 4-digit PIN on the keypad
>
> What would it take to move the logic into Asterisk?
>
> (1) is naturally trivial. As for sending the actual signal to open and
> close the door: that may take a separate out-of-band operation. e.g.
> System(/usr/sbin/open-sesame)
>
> But what about typing the PIN?
>
> "Hello, you have reached Treasure Cave Inc. If you know the access code,
> dial it now. If not, press 0 for the operator."
>
> The point is to separate communication from door opening. Both are
> different problems to solve. I'm not sure you will gain much by
> bundeling them together.

I wish Xorcom would provide a separate relay box, rather than add it onto 
an channel bank :)

Gordon