Last week we lost the ability to programme the system phone. It's working on ext 20 and appears to do everything it should do except go into system programming.
We cannot change the date etc and most of all get our caller display working again for line 1. The message coming back is 'programming refused'
I have followed a manual procedure for resetting the phone (shorting out the battery) but this has not worked. Any other suggestions please?
The system is working fine at present other than system programming.
We would be grateful for any experienced users to give some advice please.
Many thanks.














