Using Data Roam Guard
Data Roam Guard makes it easy to manage roaming charges incurred when accessing the Web through data services. Whenever you are outside the Nationwide Sprint PCS Network, Data Roam Guard alerts you to this and asks you whether you want to continue using the Web. (This additional step is not required when you connect to the Web while on the Nationwide Sprint PCS Network.)
To turn Data Roam Guard on or off:
1.Press O> Settings > Roaming > Data Roam Guard.
2.Highlight Always Ask or Never Ask and press O.