Cambridge Daily News 28 Aug 1934: new Telephone Exchange

The opening of the new exchange at Trumpington is the first step towards the great change-over to automatic telephones. Engineers dashed to remove the wooden plugs which set the system working and waited for the first call. Soon a line crackled and a bulb lit up. But it was a false alarm. The second caller had forgotten the changeover and, not getting a verbal answer, hung up. Twice more this happened but after eleven minutes a call came through from the Trumpington A.A. box and the new apparatus was officially launched.