Telecoms giant AT&T has said it expects to cut 10,000 jobs following its $67bn (£38.2bn) takeover of rival BellSouth.
AT&T already has plans to cut 13,000 staff
The US operator said the staff cuts would be made by 2009 in a move to reduce costs at the combined group.
The new cuts are in addition to 13,000 job losses over three years already announced by AT&T, following a previous US telecoms merger.
AT&T said on Monday that it would buy BellSouth, creating a US sector giant with a market capitalisation of $165bn.
The deal also gives AT&T full ownership of Cingular Wireless, America's biggest mobile phone firm, catapulting the combined group ahead of its nearest US rival, Verizon Communications.
Analysts broadly welcomed the news of AT&T's bid, although some questioned whether the company was paying too much for BellSouth.
AT&T said the job cuts would represent about 40% of the proposed $18bn cost savings it hopes to achieve from the deal.
Texas-based AT&T currently employs about 190,000 people, while BellSouth, which has its headquarters in the state of Georgia, employs about 63,000 staff.
If, as is expected, regulators approve AT&T's bid, the takeover will see BellSouth return to its old stable.
It and several other operators - dubbed the Baby Bells - were spun off from AT&T in the 1980s.
Separately, analysts said the AT&T deal - which would bring Cingular Wireless under the control of a single company - added to pressure on rival Verizon to resolve ownership issues at its jointly-run mobile phones division.
Verizon is keen to acquire the 45% of Verizon Wireless it does not own from British mobile phone giant Vodafone.