Palm Pre Plus - Manual (Page 84)

84 Chapter 5 : Email and other messages
Turn messaging notifications on or off
You can set your phone to show a notification and/or play a sound when a
new message arrives. These settings apply to all your Messaging accounts.
1 Open Messaging .
2 Open the application menu and tap Preferences & Accounts .
3 Set either of the following new message notifications:
Show Notifications: Tap On or Off to set whether a notification
appears when you receive a new message.
Sound: If Show Notifications is On, you can set which type of alert
sound plays when you receive a new message. Tap Sound and tap
System Alert , Ringtone , or Mute . If you select Ringtone, tap the
name of the ringtone to select it. Tap to preview a ringtone. Tap
to add a song as a message alert.
The ringer switch must be set to On for you to hear the sound.