ATEL (ATEL-2) is an automatic emergency interphone (e.g. for elevators or as a door/gate intercom), also suitable for outdoor use.

Performance features:

• to be connected like any other telephone to an analog La/Lb extension
• available for both surface and flush-mounting, waterproof (IP 65), operation temperature -25C (-13F) to +60C (140F)
• standard colors are brown and white (any other color possible upon request)
• monoblock design, loudspeaker/microphone installed in protected position, no external handset susceptible to interference
• easy to use hands-free communication
• power supply by loop, no separate power supply necessary, non-stop operation
• one, two or three integrated direct dial keys (external dial keys can also be connected) – choose between DTMF, dial pulsing or "hotline"-function (or mixed mode)
• gives own identification by DTMF, either on request or automatically
• galvanically isolated switching output, e.g. for activating a surveillance camera or lighting
• incoming calls are automatically answered
• protection against bugging by blinking LED and ticker signal
• ...

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