Sprint Nextel ic502 - Manual (Page 191)

Section 3B: Data Services 177
Da
ta Ser
vices
Can I sign out of data services?
You can sign out without turning off your phone; however,
you will not be able to browse the Web or use other data
services. While signed out, you can still place or receive phone
calls, check voicemail, and use other voice services. You may
sign in again at any time. To sign out, go to
Settings > PCS Vision > PCS Vision > Disable in your phone’s
menu.