The circuit provides a simple illustration of a door phone intercom system having a two-way communication using the features of LM386 amplifier. Intercom – short for intercommunication, is an ...

My condo has an analog intercom/buzzer system. When someone buzzes up, it rings the line in my unit. It it hardwired into the condo - I have no landline service. I can then pick up the call and press ...

Any landlord managing multiple apartments should understand the importance of installing an apartment intercom system with door release functionality. From helping you monitor who visits to providing ...

Users will be able to connect with their apartment building's intercom system to talk to guests and buzz them in right from their phone. Originally hailing from Troy, Ohio, Ry Crist is a writer, a ...