Ericsson DT400 User Manual page 95

BusinessPhone – Cordless DT400/DT410/DT420/DT430
Fault / Display
Phone
locked
Key locked
Unlock R*
No System
Phonebook
full
Probable cause
The telephone is
locked.
The key pad is
locked.
Cannot connect to
the network, the
telephone is not
registered or out of
range.
The memory is full,
you cannot add
new names.
Troubleshooting
Action or
comment
Enter the required
4 digit lock code. If
forgotten contact
system
administrator.
Press R key
followed by the star
key.
Contact system
administrator.
Delete a name.
95