To ensure that the caller display facility is switched on, dial the code *#234# (press the star
button, then the hash button, then two, then three, then four, then the hash button).
If the facility is active, the message 'Caller identity' will be displayed.
If the facility is not active, dial *234# (star button, two, three, four, hash button) to
activate the service.
If your service is provided over the Sky Voice and Broadband Network you will need to contact
customer services to activate Caller Display on your line.