Chorus confirms around 500 staff - about half of its employees - are being consulted on a restructure.
An insider told the Herald that staff were called in for "redundancy meetings" from 11.30am this morning.
A Chorus spokesman confirmed that meetings were underway, and will continue "over the next few weeks".
"As [departing CEO] Kate McKenzie flagged on Monday at our annual results, we are in the process of combining our customer care and network field management field teams," he said.
"Today's meetings kick off the consultation phase with the people in those teams. There are no redundancies at this stage."