Hitachi TD61-2472 - Manual (Page 48)

1.11.2 Caller ID
Sets whether or not to display the incoming telephone number.
1 From the setting menu, select "2. Calling number".
2 Use the keys to set caller ID on/off, then finalize with the key.
1.11.3 Service LED
Setting the Service LED.
1 From the setting menu, select "2. Service LED".
2 Service LED information: The User Service LED, mode, and interval are
displayed.
Hitachi Cable 44