Responding to Error Messages on the Screen

Step by Step
	Possible cause: The station number is incorrect.  Possible response: Enter a correct station number.
	Possible cause: You tried to activate a disabled function.  Possible response: Ask System Support to authorize you to use the function.
	Possible cause: The station number you dialed does not exist. The telephone you are trying to call is unplugged.  Possible response: Enter a correct station number. Try calling the telephone again later on.
	Possible cause: You dialed your own station number.   Possible response: Enter a correct station number.
	Possible cause: All memory locations for external station numbers are currently in use.  Possible response: Try again later on.