BT has been told it must be partially broken up - because it's not doing enough to meet competition rules.

Ofcom, the telecoms regulator, has ordered BT to split from its subsidiary Openreach. Openreach is the part of the business which runs the physical cables and phone lines which most broadband and phone companies use to connect with with customers. It has been the source of a great deal of criticism of BT, with rival telecoms companies accusing it of underinvesting and prioritising BT customers at their expense. Ofcom has suggested Openreach is split off from its parent, with a separate board and control of its own branding and budget. Simon spoke to David Millett, of independent telecoms brokerage Equinox.