[asterisk-users] IP door opening devices

[Gordon Henderson]

On Thu, 24 Jul 2008, Fons van der Beek wrote:

> Siemens HC 450 Dect intercom does exactly what you want
> it doesn't come cheap, but works like a dream..........

Not avalable in the UK, and there's an intersting comment about being able 
to trivially take the unit apart with a screwdriver and connect up a 
battery to open the door..

Hmm..

Gordon

>
>
> Gordon Henderson schreef:
>> On Thu, 24 Jul 2008, 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
>>>
>>> We've tried getting the existing unit working with an ATA, but it's only
>>> about 50% reliable (hangup not always detected, DTMF not always
>>> detected, etc.), so it's probably time to look at fully IP alternatives.
>>>
>>> Any suggestions gratefully appreciated.
>>>
>>
>> There was talk of this a week or 2 ago on the list - look into the
>> archives. I don't think there was anything that successfull though...
>>
>> I have to say though - if you have such an integrated unit that needs
>> nothing more than an analogue connection (and power, presumably), I'd love
>> to know the make - for me, (or rather one of my clients) it would be
>> worthwhile trying to find an ATA that would work with it..
>>
>> Got a name/website for the opener device?
>>
>> Gordon
>>
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>
>
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