The government agency that regulates the telecommunications industry, Oftel, has received a formal complaint from a group of companies concerning the business practices of BT, according to a report in yesterday’s Sunday Telegraph.

The group, which includes Kingston Communications, Colt Telecom and Energis, is asserting that BT's roll-out of broadband services is discriminatory towards its rivals.

The group is calling on Oftel to ensure fair play on BT's part, the report said.

The group is also demanding fair access to BT's exchanges so that they too can roll-out broadband services, which would include delivering TV and video over traditional copper wires, according to the story.

Oftel is already under attack for badly mishandling its efforts to speed deregulation in the Internet sector, a charge which Oftel disputes.