Aastra MBU 400 User Manual page 38

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Resetting the Handset
All handset sounds can be reset to the default values in a single step, along with the
display contrast and other customizable handset settings.
To reset all audio settings on your Aastra 420d handset to default values do the
following.
1. In Idle mode, press OK
Settings
2. Select
System settings
3. Select
Handset Settings
4. Select
Reset handset
5. Select
6. Confirm the reset by pressing the
Changing the Ringer Melody
You can specify a ringer melody for each type of call that you receive, to easily
distinguish between VoIP, landline, and intercom calls.
To change the ringer melody do the following.
1. In Idle mode, press OK
Settings
2. Select
Audio settings
3. Select
Ringer Melody
4. Select
5. Select the type of call for which you want to specify a ringer melody, and press
OK . Valid selections are VoIP, Landline, and Intercom.
6. Select a ringer melody from the list to assign to the selected type of call.
You can scroll through the list of melodies using the navigation keys and can hear a
sample of the assigned melody by pressing the
melodies, see the table below.
7. Press OK .
Apache I
Apache II
Apache III
Classic
Classic rise
Changing the Ringer Volume
You can increase or decrease the ringer volume on a handset.
To change the ringer volume do the following.
1. In Idle mode, press OK
Settings
2. Select
to display the Main Menu.
and press OK .
, and press OK .
, and press OK .
, and press OK .
Yes
softkey when prompted.
to display the Main Menu.
and press OK .
, and press OK .
, and press OK .
Play
Ringer Melodies
Classic twist
Marimba
NeoRetro
Rhythm chords
to display the Main Menu.
and press OK .
softkey. For available
Aastra MBU 400 User Guide