Tenovis MM780 Operating Instructions Manual page 57

Business/industrial handsets
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The functions
Integral 33/55
Call charge display
Displaying the call charges in basic status
Press the programming button. Enter the code 825.
The display indicates the call charges incurred by the last call and the total
charges incurred by all calls since the meter was last cleared.
Return to basic status by pressing the left softkey.
Clearing the call charge meter
Press the programming button. Enter the code 83.
Enter the additional PIN ( refer to P. 68),
e.g. 5678. This does not appear in the display.
Confirm the setting.
To be able to clear the call charge meter, this function must be enabled for
your telephone.
57

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