British Telecom(BT) The largest telecommunications provider in the UK. Due to regulatory issues, BT had to sell off its interest in McCaw Cellular. BT sold it to {AT&T} for something like 4B$. BT then invested that in {MCI}. As a part of the deal, MCI was given BT North America, which was the old {Tymnet}. MCI laid off about 40% of the Tymnet staff. {Home (http://www.intervid.co.uk/)}. (1995-05-09)