BT has become the latest Tier One Partner of the 2012 London Olympics, in a deal worth tens of millions of pounds.
As Official Communications Services Partner, BT will be responsible for providing all communications services for the games.
BT will receive exclusive marketing rights and usage rights to the London 2012 logo within its industry sector.
BT's games remit includes the provision and management of voice and data networks, covering internet access and land lines required across London 2012 venues and facilities.
In addition, it will meet the individual communications requirements of the athletes, national Olympic committees and the media, which will be able to purchase packages at pre-agreed prices.
London 2012 chairman, Sebastian Coe, said, "We have a wonderful opportunity to stage a 'Digital Games' in 2012, and BT will be integral in helping us do that.
"Technology and communication is going to be a vast operation, starting now and taking us all the way through to games-time. We needed a partner we could absolutely trust to work with us on this journey, one who could provide the technical know-how and creatively explore solutions and opportunities to ensure our games are the very best they can be," said Coe.
BT becomes the fifth Tier One Partner for London 2012, after Lloyds TSB, EDF Energy, adidas and British Airways. Deloitte is a Tier Two supporter.