# Telstra blames software defect for major outage hitting mobiles, trains, emergency calls

A widespread outage at Australia's largest telecom company, Telstra, disrupted mobile services, trains, and triple-zero emergency calls. Telstra attributed the failure to a software defect. The incident highlights vulnerabilities in critical communications infrastructure, affecting millions of Australians for hours.

**Importance:** 3/5

## Sources

### World
- [BBC World](https://www.bbc.co.uk/news/articles/cgevw0d95pdo?at_medium=RSS&at_campaign=rss) — Wed, 08 Jul 2026 07:53:37 GMT
- [The Guardian World](https://www.theguardian.com/australia-news/2026/jul/08/telstra-outage-down-network-mobile-outages-today) — Wed, 08 Jul 2026 09:12:00 GMT