Intercom systems allow communications between an entranceway and those inside the building. Upon pressing the ‘access’ button on the intercom panel, handset(s) can ring inside the building and a two-way conversation can take place.
Once the identity of the caller is confirmed, the passageway can be unlocked by pressing a button on the handset allowing the visitor entry.
These systems allow entrances to remain secure without impeding entry to visitors. They can be combined with a built in video camera to provide an image at the handset(s) to aid identification of the caller.
A keypad or proximity card reader can be incorporated into the intercom panel to allow entry without needing to use the intercom.