The data displays the British telecommunications (BT) call volumes in the UK from 2009 to 2017. In 2017, BT call volumes amounted to 21,945 million minutes.
2009 | 56640 |
2010 | 49834 |
2011 | 43364 |
2012 | 39728 |
2013 | 35646 |
2014 | 31259 |
2015 | 28389 |
2016 | 25194 |
2017 | 21945 |