HC Deb 25 November 1930 vol 245 c1138W
Mr. DAY

asked the Postmaster-General the results of the experiments that have been conducted in this country for the purpose of establishing telephonic communication with moving trains; and is it proposed to establish an experimental service on any of the main lines in the near future?

Mr. LEES-SMITH

Experiments have shown that telephonic communication with moving trains is practicable; but at present the demand for such communication does not seem likely to be sufficient to justify the expense involved to the railway companies in the provision of facilities.