1. When a signal is available, the Signal Strength icon.
   Note: To view the locations AT&T voice and data service can be used, see the AT&T Network coverage map
   
2. When connected to the AT&T network, the 3G icon will be displayed in the Notification bar.
   Note: To learn more about the AT&T network, visit http://www.att.com/network.
   
3. When airplane mode is turned on, the Airplane mode icon will be displayed in the Notification bar.