On Apr 2, 2:43*pm, wrote:
Would you know if the British railway system ever had radio phones for
use by passengers as premier American trains did?

Not until quite late.
HSTs sometimes had a BT payphone in the buffet car, I seem to recall
that coverage was patchy, they were not a huge success.

I recall a trip to Scotland in the 1950s where a payphone was wheeled
into the restaurant car whilst at Waverley, much as we used to drop
one into ships arriving at Boston Docks.