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 >> >> _______________________________________________ >> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >> >> AstriCon 2008 - September 22 - 25 Phoenix, Arizona >> Register Now: http://www.astricon.net >> >> asterisk-users mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-users >> > > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > AstriCon 2008 - September 22 - 25 Phoenix, Arizona > Register Now: http://www.astricon.net > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users