Panasonic KX-TCD560NZ Operating Instructions Manual page 53

I cannot operate the answering system
remotely.
L You are entering the wrong remote access
code. Turn remote operation on using the
handset and select a new code (page 38).
L You are pressing the dial keys too quickly.
Press each key firmly.
L The answering system is turned off. Turn it
on (page 35).
L You are using a pulse telephone. Try
again using a touch tone phone.
While recording a greeting message or
listening to messages, the unit rings and
recording stops.
L A call is being received. Answer the call
and try again later.
Useful Information
53