Sydney, Sept. 29 -- Australia's second-largest telecommunications company, Optus, on Monday reported a second network outage in 10 days that affected emergency calls.
Optus, a wholly-owned subsidiary of Singaporean conglomerate Singtel, on Monday said that the service outage affected phone calls in the east coast state of New South Wales (NSW) between 3 a.m. and 12:20 p.m. local time on Sunday.
It said that nine calls to Australia's national emergency number, Triple Zero, failed during the outage. Optus said that it has confirmed with police that all callers who attempted to contact Triple Zero are okay.
An estimated 4,500 customers were affected by the outage. Optus said it was caused by a problem with a mobile phone tower site. It mark...