Inglewood, CA – DoorKing, Inc has introduced a new cellular add-on product for its full line of telephone entry and access control systems. The cellular service provides both voice and programming via ...
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 ...
DoorKing of Inglewood, Calif., releases the Model 8040 multipurpose receiver to its line of radio frequency (RF) access control products. The receiver provides for longer-range operation, easier ...
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