Aiphone LEF-C is a semi-flush mount loudspeaker system designed for audio and video communication. It features a master station with a video monitor, multiple call buttons, and volume controls. The system also includes substations with call buttons and LEDs for call indication.

With the LEF-C, you can make and receive calls from other stations, monitor video feeds from door stations or cameras, and make announcements to all stations. The system supports both voice and electronic mono tone calling, and it has a privacy mode to prevent eavesdropping.

Here are some of the key features and possible use cases of the Aiphone LEF-C: