HC Deb 25 July 1968 vol 769 c156W
27. Mr. Ridley

asked the Postmaster General what is the annual average cost of maintaining and depreciating the equipment related to an exclusive personal telephone and two telephones on a shared line, respectively.

Mr. Stonehouse

The current average annual cost, including interest, of an exclusive exchange line with one telephone instrument is about £18. The corresponding cost of service to two telephones sharing a line is about £34.