M2 Group, the parent of Commander Centre, iPrimus and Dodo, has flagged up to 150 job cuts in a restructure as part of its "acquisition integration program".
It marks the second restructure in six months, following news last October it would cut 100 jobs.
The changes followed the ASX-listed comapny's acquisitive growth over recent years.
M2 picked up both Dodo and Eftel last year, for $204 million and $44 million, respectively. The acquisitions meant M2 gained an extra 400,000 customers to hold a total of 1.4 million.
It also meant picking up an additional 2,175 staff members, nearly triple from its former 956.
M2 also spent $192.4 million on the purchase of Primus Telecom in 2012.
In 2009, M2 paid $19 million to acquire the telecom business of Commander Centre from receivers.
Today's statement to the ASX said M2 had "identified approximately 150 roles across administration, customer service, technology, provisioning and sales that may become redundant".
M2 chief executive Geoff Horth said: "We very carefully consider any change that may affect our team and we enter into the consultation process with the aim of minimising any potential impact on the team and maximising redeployment opportunities.
"This decision was not made lightly and we take any impact on our team very seriously."
The announcement comes after record results at M2 Group, which saw a 66 percent rise in first half revenue to hit $506 million.
The result puts the company on track to achieve full year revenue of between $970 million and $1.03 billion, according to M2's earnings announcement.
-1.jpg&w=100&c=1&s=0)
.png&w=100&c=1&s=0)
