Multiple outlets report that a widespread Telstra outage disrupts mobile and data connectivity across Australia, and this interruption affects services on Victoria’s V/Line network. The reporting says V/Line train operations are completely stalled, leading to the shutdown of the entire regional rail network in Victoria. Outlets also note downstream impacts from the communications disruption, including the halting of local business payments that depend on mobile and data services. The disruption is described as nationwide, with the connectivity failure attributed to Telstra rather than to a train-specific incident. Coverage is presented in live-update format, indicating ongoing monitoring and changes to service arrangements. Across the sources, the common elements are the reported Telstra outage, the resulting loss of mobile and data services, and the complete stoppage of V/Line regional trains across Victoria. The reports do not provide specific timelines for restoration within the provided text, focusing instead on the cause of the disruption and the immediate effect on train services.