A Carillion-telent joint venture has signed a 7-year contract to provide nationwide support services for Openreach, BT's local access network business, worth in the region of £1bn.Under the contract, which follows a letter of intent signed in August this year, the joint venture will deliver a range of engineering, support and maintenance services, consolidating work currently carried out by a number of outsourced suppliers. Services will include delivery of support and installation services, asset management and maintenance, across Openreach's five regions - London and Home Counties, the South East, Midlands, Wales and West, the North, and Scotland.The integrated joint venture will be a 60:40 Carillion-telent partnership.