LG G3100 User Manual page 127

This network service allows you to see automatically cost of your
last call. If you select
last cost when the call is released.
Press [Menu] in standby mode.
Press 2 for direct access or use U and D to enter
Scroll to highlight
Select
You can check the amount of data transferred over the network
through GPRS. In addition, you can also view how much time you
are online.
You can check the duration of GPRS call. You can also reset the
call timers.
You can check the data volume.
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in menu, you can see the
and press [Select] to enter.