Flawed software sends Optus into chaos

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Flawed software patches from Nokia Siemens Networks has sent Optus’ 3G network in Brisbane down since 6am after it battled to reconfigure the network after a recent upgrade.

The upgrade, which went to all mobile switches nationwide, was supposed to provide better speeds and capacity loads. However, it triggered three separate network failures which caused chaos of customers in Queensland, New South Wales, ACT and Victoria last week – leaving subscribers without mobile phone service for about 10 hours.

While Melbourne and Sydney were able to be rolled back, Brisbane is suffering another downtime. Even though it was fixed at 7am, it went down again an hour later and at 4pm. To fix it, it has requested network engineers from Nokia Siemens’ headquarters in Finland to fix the problem.

Optus is reviewing the service level guarantees that it had in place with Nokia Siemens, but is ruling out compensation or legal action.