Reference Guide
Step by Step
Invalid entry
Not authorized
Currently not possible
Invalid station number
Key memory is full
138
Responding to Error Messages on the
Screen
Possible cause:
The station number is incorrect.
Possible response:
Enter the correct station number.
Possible cause:
You tried to activate a disabled function.
Possible response:
Ask the service personnel to authorize you to use the
function.
Possible cause:
The station number you dialed does not exist. The tele-
phone you are trying to call is unplugged.
Possible response:
Enter the correct station number. Try calling the tele-
phone again later on.
Possible cause:
You dialed your own station number.
Possible response:
Enter the correct station number.
Possible cause:
All memory locations for external station numbers are
currently in use.
Possible response:
Try again later on.