Panasonic KX-T336 System Reference Manual page 860

Operation Chart
Press the COMMON key F1
<Function mode>
Concluding
function mode
Changing
stations, etc. to
In Service
Press the EXIT key F7
Press the INS key F4
<In Service mode>
Enter physical number etc.,
then press key
RETURN
To repeat the "In Service"
operation, return to the
previous step.
Finishing INS mode and
returning to function mode
Press the EXIT key F7
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