Powertel's voice and data services have blacked out across NSW and parts of Queensland.
The network failure occurred around 2.30pm AEST and the New Zealand-owned telecommunications wholesaler has yet to provide a resolution time.
The cause of the error is unknown, however a Powertel technical support officer said the problem could be due in part to “faults with the spanning tree protocol and Ethernet switches”.
Network providers following the fault have suggested the fault does not appear to be an IP outage.
The service has resumed intermittently over the last hour for some Powertel customers.
The Powertel outage comes 24 hours after a Telstra technical failure knocked out large parts of the Telstra Bigpond network across NSW.
The problem was blamed on a failure in core routing equipment and affected metropolitan Bigpond business and residential Internet and Telstra cable services.
More to follow.