FEDERAL Opposition communications spokesman Malcolm Turnbull has slammed the Federal Government, labelling the rollout of the National Broadband Network in greenfield developments as a "huge policy failure".

Mr Turnbull claims the Gillard Government distorted the existing telecommunications market to build the NBN in greenfield estates.

"Despite getting more than 140,000 applications, the NBN connected just over 100 households last year - hardly value for taxpayer money," Mr Turnbull said.

"They distorted the market with NBN, paying $100 million to do greenfield connections themselves."

This comes as Telstra customers voice their anger over poor telephone coverage in the region.

Last week The Observer reported a case of a Little Creek couple, who were paying $50 a month to Telstra, for more than 12 months, for a broadband and telephone connection that didn't work.

Telstra declined to comment on the number of customers living in greenfield estates that were experiencing problems with their land

line connections, citing the statistics as being "commercial-in-confidence".

Communications Minister Stephen Conroy's representative said there was a clear division of responsibility between Telstra and NBN Co for new developments.

"Where Telstra is supplying a service to customers, that service should operate as intended," the representative said.

"Problems with Telstra's services are operational matters for Telstra, which should be rectified according to contract and longstanding consumer protections."

Last month NBN Co announced HillClose and Little Creek estates would be fitted with fibre-optic infrastructure by 2015.

This week Telstra announced it would generate up to $3 billion in additional cash flow over the next three years from the NBN.

COMPLAINTS LAST YEAR

Jan-Mar: 59,533

Apr-Jun: 50,801

Jul- Sept: 51,196

Oct- Dec: 48,100

* National statistics

* 6% less complaints from 2010