BT should provide consumers and businesses with clearer information over the rollout of super-fast 40Mb broadband it has been claimed.
Broadband providers Zen Internet and Entanet have raised concerns that many premises in 'fibre-equipped' areas are still unable to access super-fast web services.
Speaking to ISPreview.co.uk, the internet service providers said many households remained unaware of whether they could access fibre broadband, even after their local telephone exchange had been upgraded.
Earlier this year, it was reported that up to two-thirds of street cabinets in equipped areas were being left without fibre broadband services.
This raised concerns over a potential postcode lottery, where homes in one street have access to 40Mb broadband but those in the next may be left without.
A spokesperson for Zen Internet told the news provider that there has been misunderstanding about what an enabled exchange means and when it will be delivered.
"We believe that offering an estimated percentage of coverage within an exchange area and supplying both a start date and approximate end date for an exchange would be significant steps forward," they commented.
An Entanet spokesperson claimed that, given the number of cabinets per exchange, it would be "impossible" for BT to roll out to all the cabinets before declaring an exchange ready for business.
She suggested that BT should have a 'partially enabled' status for exchanges to help define where less than 100 per cent coverage is available.
"Secondly, education is necessary to help end users understand that it's availability at cabinet level that they need to look out for," the spokesperson added.
BT is currently investing up to £2.5 billion upgrading its national telephony infrastructure to support super-fast fibre broadband services.
The firm hopes to provide two-thirds of the UK population with access to fibre broadband services by 2015.