BT has no plans to launch its own mobile network, despite emerging as one of five successful bidders in the 4G spectrum auction.
Media regulator Ofcom announced last week that BT - along with EE, Vodafone, O2 and Three - had managed to secure spectrum which could be used for next-generation mobile services.
The telecoms giant gained a licence for 2x15MHz of FDD and 20MHz of TDD 2.6GHz spectrum.
BT said the spectrum, which can be used to provide fast 4G connectivity, will enable it to provide business and consumer customers with "an enhanced range of mobile services".
This will build on its "existing strength" in wireless broadband, the firm claimed.
The licence, which is indefinite in length, was won at a price of £186 million, with no further licence fees for at least 20 years.
BT Chief Executive Ian Livingston said the broadband provider was "pleased" to have secured the spectrum.
"We have said that we do not intend to build a national mobile network," he noted.
"Instead, this spectrum will complement our existing strategy of delivering a range of services using fixed and wireless broadband."
Mr Livingston said BT wants its subscribers to enjoy "the best possible connections wherever they are".
He proposed that the 4G spectrum, together with BT's investment in fibre broadband, will help achieve that goal.
BT is in the process of investing £2.5 billion upgrading its communications infrastructure around the UK with fibre-optic technology.
This is in a bid to deliver super-fast mobile broadband to at least two-thirds of the UK population by 2015.