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The 1812 Access Plus is a versatile PC Programmable Telephone Entry System that provides voice communication for up to 27 residents from the main entry point to the resident via the phone network. Up ...
Inglewood, CA – DoorKing is introducing a new version of the highly popular 1812 residential telephone entry system to the market – the 1812i! The 1812i is the most advanced and versatile telephone ...
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