§ Sir W. Bromley-Davenport
asked the Postmaster-General, in view of the fact that the Northwich Group of telephones are on subscriber trunk dialling and that 182W 20 or 30 different exchanges from there can be dialled, why he estimates that it will be 1970 before the Comberbach Exchange is converted to subscriber trunk dialling.
§ Mr. Benn
Substantial engineering work is involved in providing Subscriber Trunk Dialling from any exchange, and priority is naturally being given to the larger exchanges which originate most trunk traffic. Comberbach was put fairly late in the programme because it is a small exchange, with less than 250 lines.