Hi there happy to help.
It is possible you have a base station gone bad here, but to verify this we need to try to re-register the phone to the base station.
To do this see the following .......
Follow the directions on page 5 for "MANUALLY REGISTERING the A38H handset."
Give this a try and let me know,
Hopefully this will clear up your error.
If this answer helped you please click the ACCEPT button.
P.S.- try the registration 2-3 times if it doesn't work on the first shot.
it requires a pin number - what pin number should I use?
Hi the default if its never been changed is 0000.