Discover the Aiphone LEF-1C Sub Master Station, a versatile component of the Aiphone Master Sentry series. This open voice sub master station enhances your communication system with features like door answering, door release, and the ability to broadcast an All Call announcement. Enjoy music throughout the system and control volumes easily. The LEF-1C supports up to 11 units, allowing selective calling and monitoring. It offers push-to-talk functionality at the master station with a hands-free reply at the called station. Enhance your security by monitoring entry areas discreetly. Ideal for expanding communication in large facilities, this system is compatible with both surface and flush mount units. Upgrade your communication setup today and ensure seamless operation across all stations!