General Post Office - Growth in Telecommunications

Growth in Telecommunications

After the Second World War, there began to be an unprecedented demand for telephone services. In addition, there was the need to make comprehensive repairs, and upgrades to a network which had been severely degraded by war, and lack of investment. Waiting lists for new telephone lines quickly emerged, and persisted for several decades. To alleviate the situation, the Post Office began to provide shared service lines, each known as a party line. Most of the line was shared between two subscribers usually splitting off to each within sight of the houses, and both lines attracted a small discount; however, this arrangement had its disadvantages.

At this time, the majority of lines in rural, and regional areas (particularly in Scotland and Wales) were still manually switched. This inhibited growth, and caused bottlenecks in the network, as well as being labour and cost-intensive. The Post Office began to introduce automatic switching, and replaced all of its 6,000 exchanges. Subscriber Trunk Dialling STD was also added from 1958, which allowed subscribers to dial their own long-distance calls.