United Artists Communications the largest cable operator in the UK has launched a telephony service for the Croydon business community which will eventually be extended to cover Sutton, Merton, Kingston and Richmond; United Artists has teamed up with Mercury Communications Ltd to offer international digital links with Mercury-like incentives such as call-charges measured in seconds rather than units, fully itemised monthly bills and conference calling facilities, ISDN capabilities will be offered to targetted customers only: United Artists is backed by its parent film company, United Artists Entertainment and by one of the seven US Baby Bells, U S West Inc.