More than 100 jobs look set to be axed in two factories in Donegal and Clare, it emerged this afternoon.
At least 50 jobs are to go by the end of November at the Cable and Wireless company based at the Shannon industrial estate.
The Shannon facility was used as a service back up for the company's mobile phone manufacturing base in Europe.
The company has been under pressure in recent months and last month announced that chief executive Mr Graham Wallace was to leave the group.
Mr Wallace presided over four profit warnings in the space of two years following difficulties at C&W's corporate-based internet and data business, Global.
The company's shares lost 87 per cent of their value last year, and in December C&W was relegated from the blue-chip FTSE 100 Index.
Meanwhile in Castlefinn, Co Donegal, 60 employees at Nena Models were issued with protective notice this afternoon.
Workers were told that due to a decrease in orders, lay offs were to be expected.
