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 ...

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 ...

One of the best ways to improve efficiency in a small office environment is to reduce the amount of time spent traveling between departments. An intercom system that connects the front desk to a back ...

The project attaches two ordinary telephones to produce a fully bi-directional facility with an intercom system. On it normal operation, the Exchange will detect and send ringing pulse to other phone ...