Telstra has been hit by another network outage, leaving dozens of corporate customers in NSW without phone and internet services for a few hours.
Tuesday's outage was caused by a faulty piece of hardware, and lasted for two to three hours, a Telstra spokesman said.
"All services have now been restored. We apologise to customers for the inconvenience and thank them for their patience," he said.
The company said less than 100 customers were affected in what is the second outage this year. It did not affect consumer fixed line or mobile services.
Earlier this month, customers across the country were hit by an outage caused by a fire at northern Sydney exchange.
Telstra was affected by seven outages in 2016, which subsequently saw Australia's biggest telco commit more than $3 billion on improving its network.
