All calls: Check the total duration of all your calls.
Lift time: Check the total airtime minutes logged on your phone.
Date transferred: Check the transferred data stream.
Connect time: Check the connect time of transferring data.
And you can clear all the call duration timers by pressing Right soft key [Reset]. To reset timers needs password. The default of security code is 0000.e
Note: The actual invoice for calls and services from your service provider may vary, depending on the network features, rounding off for billing, rate and so forth.