Miles could not comment on where this was at but said he was looking at which parts of the New Zealand ICT market Gen-i should be in.
"There might be some changes and things we decide we won't do in the future, I haven't finalised that," he said.
He said Gen-i has around 2400 staff and that its Australian operations did not make up a "significant" amount of Telecom's total annual revenue.
Telecom chief executive Simon Moutter said in February there would be job cuts "well into the hundreds" this year as the company seeks to reduce costs.
Miles said Gen-i had a very successful trans-Tasman business but there were issues of scale with other parts of its operations in Australia.
"If you're going to after substantial business in Australia in the ICT area you need scale to credible you scale to be able to deliver," he said.
The decision to sale back operations was "clear-cut".
"It was pretty obvious to me what needed to happen," Miles said.
Along with its redundancy costs, Gen-i said there would be other restructuring costs associated with the move.