BT Chief Executive Gavin Patterson has unveiled the company's ambition to deliver Britain's digital future.
Ninety per cent of UK premises can already access fibre broadband, putting the UK top of the EU's largest countries, according to Ofcom.
Speaking at BT's Delivering Britain's Digital Future conference in London, Patterson pledged to tackle slow speeds in hard-to-reach parts of the country; achieve a step-change in speeds overall, with ultrafast rollout starting next year; and improve customer service through a number of commitments unveiled by Openreach.
Patterson said: "For the past five years the UK has been the largest digital economy in the G20 by percentage of GDP.
"We think the UK has an even brighter future ahead if we make the right decisions today. We want to forge an ultrafast future for Britain and stand ready to help government deliver the broadband speeds necessary for every property to enjoy modern day internet services, such as high definition TV streaming and cloud computing. To achieve this, we need a collaborative effort across industry and government."
Patterson committed BT to supporting government in delivering a new universal minimum broadband speed of 5-10Mbps, enough for everyone in the UK to enjoy popular internet services like high definition video.
Patterson emphasised the need for a supportive regulatory and government policy environment to bring about a commercially viable investment.
He also cited new technologies developed at BT's Adastral Park research laboratories which should help boost slow speeds for many hard-to-reach premises.
Research includes tests on new technologies such as 'wireless to the cabinet' and 'long reach VDSL' to help bring higher speed broadband to hard-to-reach communities.
Patterson also pledged the company would introduce a satellite broadband service for some of the UK's more remote premises by the end of the year.
He announced BT's desire to go 'further and faster' on fibre broadband, and made clear BT would 'never say no' to providing faster broadband to communities, promising the company would instead explore innovative funding and technical solutions. He said 90 communities were already benefitting from this approach.
The BT chief executive said the UK would go beyond government's current 95% target for fibre availability, thanks to 'success dividend' clauses in contracts covering rollout co-funded by BT, Whitehall and local councils.
The clauses mean BT has to reinvest or return money if take-up exceeds certain levels in areas where public funds have been used.
A sum of £130m is already being released and is potentially available to get the UK towards having fibre available at 96% of premises.
He also announced plans to supply fibre broadband for all new housing developments either through BT's own efforts or in cooperation with developers.
Patterson stressed the potential benefit to homes and smaller businesses from ultrafast broadband technology.
These services will sit beside Ethernet broadband services which already offer ultrafast speeds to larger businesses and organisations which can pay for bespoke dedicated lines.
Patterson went beyond his January statement on ultrafast broadband to say BT's new services of 300-500Mbps would reach 10m homes and smaller businesses by the end of 2020, and the majority of premises within a decade.
A 1Gbps service will be provided for those that want even faster speeds. The connections on offer would be a combination of Fibre-to-the-Premises technology, as well as new G.fast technology, which uses existing Fibre-to-the-Cabinet technology.
Joe Garner, Openreach chief executive, said there was more to do on service.
He made clear his ambition to exceed by 6% Ofcom's 2017 minimum standards for delivering new connections on-time.
He also cited View My Engineer as a key step forward.
This is a new service which gives customers text progress updates plus their engineer's name and mobile number should they need to make contact.
He highlighted an issue which arises because customers often cannot deal direct with Openreach, but can only deal with their retail broadband provider. Garner declared he is open to having Openreach deal directly with end customers, subject to consulting Ofcom and telecom providers.
At the conference, a new report was also unveiled by consultants KPMG, valuing the impact of BT's future commitments as worth £20-£30 billion to the UK economy over the next decade.