MBU 400 Features
Aastra 420d Handset Features
Display
•128 x 128 pixels, 65K color support, backlight
•Graphical menu system
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)
•Contact List (up to 200 entries and up to 4 numbers per entry)
•Voicemail message support
•Speed dial support
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•Call hang up (upon return to charging cradle)
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Audio Features
•Mute (disable microphone)
•Receiver volume control
•Ring tone melodies
•Ringer volume control
•Key sounds (click, DTMF, and special tones)
•Low battery and
•Speakerphone
•Headset jack (2.5 mm)
Other Handset Features
•Separate charging station for handset
•Hearing aid compatible
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•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