BT = British Telescam
Civil Services ie. Police, Hospitals, Health Centres etc.. should show their caller ID, if you have it activated on your landline (which should also be free).
Everything WITHHELD, NUMBER NOT AVAILABLE or UNKNOWN gets ignored in our house that's registered with that toothless crocodile TPS (Telephone Preferential Service) for over 7 years on an ex-directory landline!
Biting the hand that feeds IT
