Sony CMD-Z5 - Manual (Page 67)

67 GB
CALL SETTINGS ? CALL TIME, COST ?
PREFERENCES / SECURITY
Menu
Operations
Call cost setting
Select Charge rate to set the currency and price per unit which your phone
uses to calculate the call cost.
Charge rate
Select Charge rate and enter your PIN2 code at the prompt. Enter a
monetary denomination and the price per unit using the keys (To
enter a decimal point, press
or ).
Charge limit
Select Charge limit to set a unit figure at which your phone will not
allow any more phone calls to be made. (If you have selected Unit in
the Charge rate menu (see above), enter the Unit value. In case of
Currency, enter the Currency value.)
Select Call cost setting from the Call Data menu. Enter your PIN2 code
at the prompt, then set the charge limit using the Jog Dial.
Call cost reset
Select Call cost reset from the Call cost setting, enter your PIN2 code
and then reset the call cost.
Note
Reset the Call cost counter or enter a higher limit in order to be able to make phone
calls again.