20Displaying Your Phone Number Touch Start ➔ Settings ➔ Cellular.RoamingWhen you travel outside your home network’s coverage area,your phone can roam to acquire service on other compatibledigital networks.Tip: You can set your phone’s roaming behavior. (For moreinformation, refer to “Cellular” on page 126.)During roaming, some services may not be available.Depending on your coverage area and service plan, extracharges may apply when making or receiving calls.Note: Contact your Wireless Provider for more informationabout your coverage area and service plan.Restarting Your PhoneIf your phone “freezes” or becomes unresponsive, try thefollowing:1. Restart your phone by pressing and holding the Powerkey for 13 to 15 seconds. The phone will power off,and then turn on automatically.2. If restarting your phone does not solve the problem,remove and replace the batter y, and turn on the phone.(See “Turning Your Phone On” on page 14.)