Aiphone LEF-3 Selective Calling Open Voice Style 3-Call Master Station

Designed for secure, on-site communication, the Aiphone LEF-3 intercom master station delivers selective calling and reliable voice monitoring for small security and access-control environments. As an open-voice 3-call master station, the LEF-3 supports up to 4 total stations, giving you targeted two-way communication without disturbing other zones. The master uses push-to-talk while called substations reply hands-free, improving efficiency for reception desks, guard stations, and surveillance hubs. Built-in privacy lets the master or selected subs block outgoing audio to prevent eavesdropping, protecting sensitive conversations. With 12V DC operation, LED and mono-tone call annunciation, and a compact desk/surface/wall mount form factor, the LEF-3 integrates easily into existing wired intercom, security, and monitoring systems. Ideal for facilities requiring dependable internal communication—control rooms, small campuses, retail loss-prevention, and property management. Add the Aiphone LEF-3 to your security setup to simplify visitor handling and incident response—contact us to design your intercom layout or order now.

• Selective calling lets you target any connected station for clear, efficient communication without broadcasting to the entire system.
• Privacy button prevents eavesdropping at the master or selected substations, protecting sensitive security and access-control conversations.
• Push-to-talk master with hands-free reply at called stations streamlines reception and monitoring workflows for security and surveillance teams.
• Compact, versatile mounting (desk, surface, wall) and 12V DC power simplify integration into existing intercom and access control installations.
• Visual LED and audible call-tone indicators ensure fast identification and response to incoming calls in busy control rooms.