The BT Labs at Adastral Park near Ipswich, Suffolk, today celebrated 40 years at the forefront of telecoms innovation, commemorating the opening of the company’s global R&D headquarters in November 1975 by Her Majesty Queen Elizabeth II.

The site, formerly known as the Post Office Research Station Martlesham Heath, was opened on 21 November 1975, as a new centre for telecommunications research, replacing the wartime Dollis Hill research station in North London.

Click here to read more.