HC Deb 07 February 1938 vol 331 cc671-2
60. Mr. Bellenger

asked the Postmaster-General whether he is aware that conversation in public telephone boxes can be overheard by users of contiguous telephone boxes; and whether he has any proposals for a better system of insulation, so that conversations in public telephone boxes can be private and not overheard?

Major Tryon

I am sure that the hon. Member will appreciate that when telephone cabinets are arranged in suites, and each of them is properly ventilated, a certain risk of overhearing is inevitable. In cabinets of current design these risks are greatly reduced; and constant research and experiments are in progress with a view to still further improvement.