Software giant Microsoft says the Abbott government should reconsider its national broadband network (NBN) policy.

The former Labor government's fibre-to-the-home plan is superior to the coalition's cheaper policy of running optical fibres to street exchanges, Microsoft Australia managing director Pip Marlow says.

Microsoft argues that a fibre-to-the home NBN would deliver faster speeds than the coalition's hybrid optical fibre and copper cable program.

"Ultimately, if you don't get fibre to the home, the biggest impact really is the upload speeds," she told AAP at a Committee for Economic Development of Australia event.

Microsoft is lobbying communications minister Malcolm Turnbull and other government members, Ms Marlow said.

"We're encouraging the government to be looking at all the options and really understanding how businesses, how schools, how individuals will be using this technology," she said.

"We think that needs to be looked at."