The Unite union suspended its industrial action at Capita today after the outsourcing firm said it would "stand down" and scrap plans to move jobs abroad or bin them entirely.
Workers had planned action in Birmingham, Bournemouth, Craigforth and Reading.
Capita has also promised to wrap up talks on job security by the end of the month.
Unite national officer David Fleming said: "Unite is delighted that our members' determination to defend their job security and oppose the offshoring plans has prompted a rethink by Capita."
A government guided by common sense would respond to news that publicly owned Royal Mail has increased profits to £403 million by scrapping plans to flog off the service.