[2] The company operates subsidiaries in seven European countries: Austria, Belarus, Bulgaria, Croatia, North Macedonia, Serbia, and Slovenia.[3] Telekom Austria's earliest predecessor, the state-owned PTT agency k.k Post- und Telegraphenverwaltung [de], was formed in 1887 when all telephone and mail services in Austria-Hungary were taken over by the state.After World War I, the Austrian portion of the company became simply Post- und Telegraphenverwaltung (PTV, ÖPT).Only two years later, the telecommunications sector was fully deregulated and PTA was split, with the telecom side becoming Telekom Austria.Labour representatives boycotted the decision on the syndicate agreement at the ÖIAG supervisory board meeting for 12 hours criticising lack of explicit job guarantees.