Telecoms company Eir is to cut 750 jobs as part of cost cutting at the former State-owned business.
The redundancies will be entirely voluntary, Eir says.
The development was communicated to staff earlier today and all employees have been given financial details about the package being offered.
They now have 30 days to consider whether to accept the offer or not.
There are currently around 3,220 people employed at Eir.