Introduction

Call and Telephony Features

12 numerical keys, 5 navigation keys, 2 function keys

Auto answer (when handset is lifted from the charger)

Key lock option

Call forward - all, busy, no answer

Call timer

Call transfer and call hold (for internal calls)

Call waiting indication

Caller ID with name from phone book

Distinctive ringing

Call log of incoming/outgoing/missed calls

Call return (from call log)

Customizable phone settings

Intercom (handset to handset through MBU)

Contacts List (up to 200 entries and 4 numbers per entry)

Voicemail message support

Speeddial support

Three-way conferencing (2 handsets)

Call hang up (upon return to charging cradle)

On-hook dialing (pre-dial numbers before pressing off-hook button)

Audio Features

Mute (disable microphone)

Receiver volume control

Ring tone melodies

Ringer volume control

Key sounds (click, DTMF, and special tones)

Low battery and out-of-range audible warnings

Speakerphone

Headset jack (2.5 mm)

Other Handset Features

Separate handset charging station

Hearing aid compatible

Multi-language support (Danish, German, English, Spanish, French, Italian, Dutch, Portuguese, Finnish)

Li-Ion battery pack

Automatic or fixed registration of handset to MBU

Status indicators in idle mode (signal, battery level, date and time)

Message waiting indicator (missed calls, voicemail)

Vibrator mode on handset

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Aastra MBU 400 User Guide

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Aastra Telecom 41-001286-00 manual Audio Features, Other Handset Features