SYDNEY (Reuters) -Singapore Telecommunications, which owns Australia's second largest telco Optus, apologised on Wednesday for a Optus outage that probably caused four deaths, after emergency calls ...

Senators are preparing to grill directors of the telco group’s Singtel parent company over a fatal network failure last year.

Australian phone company Optus said last week’s network outage left some 480 customers unable to reach emergency services, as the Singapore Telecommunications Ltd.-owned business started an ...

Three people have died after a botched Optus network upgrade on Thursday prevented around 600 emergency calls to Triple Zero across South Australia, Western Australia and the Northern Territory. South ...

Optus network customers have reported more emergency triple-0 call failures outside the hours of recently confirmed outage periods in September. Those outages resulted in hundreds of emergency calls ...