Spec Sheet Preview: The Alpha Communications®™ / Elvox 8870 Series handsets are primarily designed to work as an apartment type handset intercom station, and are designed as 5-wire models. They can be used with intercom only systems or audio add-ons to certain compatible video-intercom systems. These attractive handsets easily surface mount right on the wall or over a single gang flush electrical back box (or plaster ring). The 8870 series handsets feature electric buzzer signalling, electret condenser microphon …