From the Home screen, tap the Contacts Key (in the Quick Keys bar).
Tap the VuTalk switch to turn it off or on.
Set the following options as your preferences.
Notification sound: Tap to set the notification sound when you receive a VuTalk notification.
Vibrate: Tap to set when the device will vibrate for a VuTalk notification.
Show request: Checkmark this option to display a pop-up when a VuTalk request is received.
Contact sync: Checkmark this option to sync your VuTalk contacts.