Samsung A820 Manual page 213

6.
When is my data connection dormant?
If no data is received for 10 seconds, the connection
goes dormant. When the connection is dormant, voice
calls are allowed. (The connection may become active
again quickly.) If no data is received for an extended
period of time, the connection will terminate.
7.
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 Menu (
Disable Web (
Section 3B: Data Services
) > Settings (
) in your phone's menu.
) > Web ( ) >
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