If you get an incoming call, the deleting operation is cancelled and the telephone returns to standby so you can answer the call.
31
Deleting all Caller ID name/numbers
1 Press 
.
New :01
Total:02
2 Press 
.
Delete All?
Yes
No
3 Press 
or 
to select “Yes” or “No”.
4 Press 
or 
.
When the pointer is at “Yes”:
A tone sounds and all stored Caller
ID messages are deleted.
Total:00
When the pointer is at “No”:
The display returns to the summary screen.
New :01
Total:02