Ofcom should consider the separation of BT and its infrastructure division Openreach, Dido Harding has claimed.
Speaking to City AM, TalkTalk's Chief Executive claimed such a move could create a new FTSE 100 business, which is incentivised to work harder for its customers.
Ms Harding's comments come amid reports that BT will ask Ofcom for permission to merge its wholesale and infrastructure businesses.
Such a step could potentially make BT - which allows providers such as TalkTalk to deliver broadband services over its wholesale network - both a rival and supplier to other UK operators.
"The next challenge for Ofcom is do they have the right structure for a fibre-to-the-premise (FTTP) world and would a completely independent Openreach Plc invest faster in FTTP," Ms Harding said.
"Would that be a better answer for the nation than one that’s part of BT?” she added.
In response to this suggestion, a BT spokesperson said there is no need to separate Openreach from the rest of the telecoms group.
The representative claimed that Openreach is already "heavily regulated", adding that TalkTalk and other broadband providers buy fibre on the same terms as BT’s own consumer business.
The current arrangement has led to "intense competition" at a retail level, the spokesperson added.
Of course, this isn't the first time TalkTalk's CEO Ms Harding has weighed in with her views on the future of BT. TalkTalk may be one of BT's major customers, but this has not stopped the firm from criticising the UK's largest broadband provider.
Back in April 2013, Ms Harding accused BT of building a fibre broadband monopoly, telling the Telegraph that's the firm's policies are to the detriment of competition.
She reiterated her view in August this year, telling the same news provider that the UK's fibre broadband market is "fundamentally less competitive" than the copper equivalent.
"BT’s market share is double what it has in copper, take-up is still lower than you might expect,and by pricing it at a premium, BT is driving up costs for families and businesses when they can least afford it," Ms Harding claimed.