[OT] Looking for POTS based Apartment Intercom System


I need a POTS based Intercom system for my apparment building (20 Appartments). I.e. An intercom system that basically consists of a speakerphone in a vandal proof casing with a keypad that translates an appartment number to a telephone number and auto-dials this number. Using the keypad as a code-lock entry pad etc. is of course usable add-ons. I obviously do not have the right induztry buzzwords because I am battling to find any manufacturers of such systems via google. The only manufacturer I have found is Mircom. I would appreciate any pointers in finding these type of devices.

Regards Anton Erasmus

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Anton Erasmus
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Use the search phrase "door entry system" in Google and you will get about

20,000 hits to sift through. Some of those will be of help.
Paul E. Bennett ....................
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