Topic List

Click a topic to learn more.


Term of the Moment

Coinbase


Look Up Another Term


Definition: Concert


(Concert Communications Services, Reston, VA) A joint venture of AT&T and British Telecom (BT) that provided global communications services, including private, point-to-point voice and data circuits, Internet services and X.25 packet switching and frame relay. In October 2001, AT&T and BT announced their intention to dissolve Concert and return all assets to the parent companies. See Tymnet.