Notifications: Checkmark this setting to allow your phone to receive a notification in the Status Bar whenever you receive a new message.

New message pop-up: Checkmark this setting to show a pop-up when new messages are received which allows you to directly respond in the pop-up window.

Preview: Checkmark this setting to preview message contents when a new message is received.

Notification sound: Tap to select the ringtone to sound when you receive a new message notification.

Vibrate: Tap to set when the phone will vibrate for a new message notification.

Repeat alert: Tap to set how often the phone will repeat the alert for unread messages.