Aiphone AT-406B/A Handset-to-Handset System, Charcoal Gray, AT-206B, AT-306B

Streamline secure on-site communication with the Aiphone AT-406B/A handset-to-handset intercom, built to deliver dependable audio for security, access control, and monitoring applications. This Aiphone audio intercom kit provides full-duplex handset communication for natural, two-way conversations and reduces miscommunication during critical incidents. Sub stations ring only at the master, enabling centralized monitoring and faster response from security or reception teams.

The system supports one master and up to two additional AT-306B sub stations, giving you scalable coverage for reception desks, secure entry points, retail counters, and healthcare stations. Wired connectivity provides consistent audio quality over distances up to 2,300' with 22AWG or 5,250' with 18AWG cabling, and the unit runs on a simple 6V DC input. NDAA-compliant construction and a charcoal gray, wall-mount form factor make the AT-406B/A ideal for professional security and surveillance installations that require reliable, tamper-resistant intercom performance.

Choose the Aiphone AT-406B/A to enhance on-site monitoring and access control—contact sales to plan wiring and deployment for your facility.

• Secure, centralized voice communication: master station receives rings from sub stations so staff never miss a visitor or alert
• Full-duplex handset audio for clear, hands-free conversations that improve response times in busy environments
• Scalable setup: supports up to two additional AT-306B sub stations for flexible deployment across small to mid-size sites
• Long-distance wired reliability: supports runs up to 2,300' (22AWG) or 5,250' (18AWG) between master and sub for wide-reaching coverage
• NDAA-compliant, wall-mount design in charcoal gray—durable, low-profile fit for security, monitoring, and access-control applications