AASTRA DT4x2 for MD Evolution User Guide EN - Manual (Page 129)

129 MD Evolution – Cordless DT412 / DT422 / DT432
DT4X2 Adjustments
Key Beep
Use this feature to set if you want every keystroke to be confirmed
with a short tone or not.
When you have entered settings:
á
Select Alert signals . ã
Select Key beep .
Change Press (see display).
The Key beep checkbox is marked/unmarked.
Vibrating Alert
You can set the vibration alarm instead of the ringing signal to
indicate incoming calls and messages.
When you have entered settings:
á
Select Alert signals . ã
Select Vibrator .
Change Press (see display).
The Vibrator checkbox is marked/unmarked. A call will now be
indicated by both the vibrator and the ring signal. If you want only
the vibrator to indicate calls, you have to mute the ringing signal
first.