{From TAP Issue 52, August 1978}

Update from England
-------------------

Where CAMA and LAMA exist on your exchange, the operator will know the number
you're on, so you can forget methods like giving the # of a large business (or
your exchange) as your own number when making operator connected calls, or
booking a call for a later time to a pay phone # from a domestic phone and 
being at the pay phone at the right time to receive it. If the operator has to
ask your #, it probably means you haven't got CAMA or or LAMA. On Velros 
(spelling?) that haven't, these fraud methods will work (e.g., here in the UK)
Sorry if anyone was mislead by the piece in #43.

NYC has a voice-response validation for CC calls. The "card" I was using was
that of a large corporation. The operator asked me the area code on the card
and after what seemed like an age, the computer came back with "valid", 
"valid", "valid". This was after a month of using the same card in Detroit,
Chicago,