Aiphone C-ML/A Master Station for C-123L/A

The Aiphone C-123ML/A ChimeCom single-door master intercom works with an Aiphone C-D door intercom (sold separately) to enable audio communication with visitors prior to authorizing access to the building using the door release button. The master intercom has both a push-to-talk button and a pull cord that can be used to initiate audio transmission to the door intercom. Once the cord or button is released, sound from the door intercom is transmitted immediately to the master intercom, automatically shutting off after 20 seconds. The door-release button works with an electric strike (sold separately) to remotely unlock the entrance for the visitor.