Palm Treo 300 - Manual (Page 219)

Section 7
Setting Preferences for Your Phone 211
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If you assign a password with the Security application, the information
in the Owner Preferences screen cannot be changed. In this case, an
Unlock button appears at the bottom of the screen.
To unlock the Owner Preferences screen:
1. Tap Unlock .
2. Enter the password that you defined in the Security application.
3. Hold Option and press Return to finish.
Ringer Preferences
The Ringer Preferences screen controls the behavior of the ringer on your
phone. You can control the ring volume, select unique ring tones for
various types of incoming calls and notifications, and turn the vibrate
option on and off for each of the two ringer switch positions.
To select ring volume settings:
1. Tap the Volume box.
2. Tap the Ring Volume pick list and select the ring volume level you
want to use.
Note: When you change the ring volume, the Known Caller tone plays
once. To avoid playing the tone, move the ringer switch to the silent
position before changing the volume.
3. Tap the Vibrate pick lists to enable or disable the vibrate option for
the corresponding ringer switch position: Sound Mode and
Silent Mode .