Figures reportedly obtained by Australian media sources show work on Tasmanian sections of the National Broadband Network has ground to a halt.

Claims over the weekend say that the network had been set-up at 32,000 premises across the state in August, but there has been no progress since.

It has led industry insiders to call on the federal Communications Minister to decide on a new NBN plan and hastily get things going again.

Dean Winter from Tas ICT says Malcolm Turnbull, Minister for Communications, needs to focus on re-enlivening the massive project before too many jobs are lost. Many have questioned the lack of a new NBN plan since Mr Turnbull took office, after repeatedly claiming he had a better idea forthcoming.

“We've called for Malcolm Turnbull to come to Tasmania to talk to vision stream to talk to NBN Co in Tasmania to see what he can do to ensure the rollout proceeds as quickly as possible and as planned,” Mr Winter said.

“We know there's been a lot of issues with the NBN but it’s now up to him as the new minister to come down to Tasmania and resolve them.”

It comes as the former Communications Minister Stephen Conroy allegedly commented that the Labor government’s plan may have been “overly ambitious”.

“I think we underestimated the capacity of the construction industry to respond... That has led to the majority of the publicity around the alleged blowouts - not that anyone can point to one. I think it's fair to say the construction model could be legitimately criticised,” Mr Conroy is quoted as saying.

There has been no recent word from Mr Turnbull on officially what form his changes to the planned network will take, though speculators say it will almost certainly be copper-based, with rumoured efforts to buy Telstra’s copper infrastructure.