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