Bond Dickinson has been appointed to BT's revamped UK and Ireland legal panel following a competitive tender process.
The BT Legal Network will run for three years until April 2020 and also encompasses work for mobile operator EE, which was bought by BT at the start of 2016 for £12.5bn. There are 37 law firms on the UK and Ireland panel.
Bond Dickinson will support BT on commercial, M&A, next generation access, consumer, media and advertising legal work.
Alastair Mitton, Partner, said: "We are delighted to have been appointed by BT. This is a great outcome and reflects the hard work put in by a lot of people to fully demonstrate the value we can add to BT's legal network."