Note: The actual invoice for calls and services from
your service provider may vary, depending on
network features, rounding off for billing, taxes, and
(network service) to view information of prepaid credit;
to turn the call time display on or off;
turn the approximate call time report on or off.
Note: When no more charging units or currency units
are left, calls may only be possible to the official
emergency number programmed into the device.