Central station with up to 8 secondaries for AX security intercom system. Hands-free communication or PTT ("Push to Talk"). Privacy and mute functions. It has a general call key, 8 keys for secondary calls, 8 keys for calls to other centrals, a door opening key and a monitoring key. Includes connectors for headphones and footswitch (external switch for PTT function). Call volume control (reception and transmission) and tone. Incoming call indicator. Desktop or wall mounting. Black color. Dimensions 194 x 175 x 48 mm.