Regional train services across Victoria are gradually returning after a major telecommunications failure brought the V/Line rail network to a standstill, disrupting travel for thousands of commuters and regional passengers.

The disruption began after a nationwide Telstra outage affected the radio communications system used by V/Line and the Australian Rail Track Corporation (ARTC). The fault prevented train drivers from maintaining reliable communication with network control centres, making it unsafe for trains to continue operating. As a result, V/Line suspended nearly all regional rail services across the state.

The outage affected passengers travelling on major regional corridors, including the Geelong, Ballarat, Bendigo, Gippsland, and Seymour lines. Interstate rail services between Melbourne, Sydney, and Canberra were also impacted. Hundreds of passengers experienced significant delays, while others were forced to seek alternative transport after trains stopped mid-journey or services were cancelled entirely.

V/Line initially advised customers to postpone non-essential travel because replacement coach services could not meet demand. Long queues formed at Melbourne's Southern Cross Station, with many commuters waiting hours for buses or arranging taxis and rideshare services. Some travellers reported missing work commitments, medical appointments and connecting transport because of the disruption.

Following overnight repairs by Telstra, engineers completed extensive testing of the communications network before rail operations resumed. V/Line confirmed trains are gradually returning to service, but warned passengers to expect delays and timetable changes while the network recovers. Officials said restoring normal operations would take time because trains and crews needed to be repositioned across the state.

V/Line Chief Executive Will Tieppo said the organisation's priority had been passenger safety. He explained that without reliable communication between trains and control centres, the rail network effectively became "blind," making it impossible to safely continue services. He also indicated the operator would investigate the incident and seek compensation for the substantial disruption caused to passengers and rail operations.

Telstra later confirmed the nationwide outage resulted from a software defect, not a cyberattack. The same telecommunications failure also disrupted some Triple Zero (000) emergency calls, electronic payment systems, freight operations and other critical infrastructure across Australia. Government agencies have announced investigations into the incident and its broader impact on essential services.

Transport authorities are advising passengers to continue checking live service updates before travelling, as delays and occasional cancellations may continue while normal timetables are restored. V/Line said customers affected by the disruption may be eligible for compensation under its customer service arrangements.