Surface-mount door intercom works with a master intercom (sold separately) to enable audio communication with visitors For use with the Aiphone LEF and LEM Series master intercoms (sold separately) ...

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 ...

Alarm.com introduces a QR code–based Video Intercom Mobile Directory that enables low-cost visitor access and remote door ...

February, 2019 – Farmingdale NY. Alpha Communications® today announced that it has released its new AlphaTouch™ multi-family smartphone video-intercom system. AlphaTouch™ is designed to be the low ...