Telstra chief operations officer Brendon Riley has said that the telco will continue to get smaller for years as it focuses on growth areas.
"Overall, I would say probably every year, we will get a little bit smaller," he told Fairfax Radio in Melbourne on Thursday.
"I don't know about indefinitely, but I think certainly for the next few years that will be the case."
Thehas been criticised by unions that say the number of faults on Telstra's copper network — and its profits — are as high as ever.
However, Telstra said the cuts to its operations business are necessary to simplify the company and focus on growth.
A significant portion of the 1,100 job losses announced on Wednesday are expected to include fixed-network technicians. Riley said that front-line customer service staff will not be cut.
"I would concede that we've still got a long way to go to improve our customer service," he said.
He said that the planned job cuts are all in back-office roles or declining areas.
For instance, he said that Telstra will consolidate four units that currently do reporting, financial management, and scheduling.
"We've got to continue to re-create and reshape Telstra so it is more efficient, so it provides better customer service and responds to what is a very dynamic and changing industry."
Telstra management will meet with union officials later on Thursday to discuss the coming cuts.