Sometimes, the communications campaign has been driven by needs other than increasing usage and business.
In war and in times of national crisis, there are other messages that need to be put across... where the needs of security or national welfare have to come first. This was what happened during the Second World War.
And afterwards the change in British society meant that post-war communications campaigns were very different from what came before ...
Throughout the history of telecommunications, most efforts have been aimed at encouraging people to use the service more. But in wartime, different rules apply.
The demands of military security and national priorities meant they had to be urged to use the service less...
Britain emerged from the Second World War as a world leader in telecommunications, electronics and computer technologies.
It looked as though the post-war era would be a brave new age of scientific progress and creature comforts. But the reality - austerity, rationing...