NBN Co calls in experts

The company behind the national broadband network will begin inviting consultants to help the board's 60-day review, which was promised by Communications Minister Malcolm Turnbull before the election.

While NBN Co's board and executives are responsible for the review, now due in just 46 days, the company building the high-speed broadband network issued a request on Thursday for proposals to a "select number of consultants" to provide expert advice and skills.

It expects to announce the winning consultancies next week.

The move marks one of the first key steps for the NBN since former Telstra boss Ziggy Switkowski was appointed chairman and chief executive earlier this month.

"The strategic review is a comprehensive exercise led by NBN Co to determine how best to provide access to very fast broadband to all Australians as soon, as cost-effectively, and as affordably as possible," Dr Switskowski said.

Construction will continue during the review. The findings will be passed to the government in early December.

The strategic review was one of four inquiries that Mr Turnbull wants done before deciding how to go ahead with the NBN.