Telstra has confirmed the third mobile outage that occured this morning was due to a card failure in a media gateway in Victoria.
A Telstra spokesperson said the fault meant temporarily calls could not get through.
“While small, we appreciate the impact this outage had on the customers affected, and we apologise to them,” said the spokesperson.
The company added that the outage affected “less than 3 percent” of customers.
The disruption lasted roughly two hours on Thursday with customers complaining they could not use Telstra’s mobile network from around 11am eastern daylight savings time until 1:15pm. This outage mostly affected customers in Victoria and Tasmania, but impacted other states sporadically.
Telstra said it was conducting a major review in relation to the three outages.
Rival telco Vodafone has already taken a not-so-subtle shot at Telstra by offering customers a free month of post-paid or mobile broadband if they switched providers.
“We know how important it is to stay connected, so if you’re having trouble with your network, we invite you to come on over to Vodafone,” said director of sales Ben McIntosh.
This morning’s Telstra outage marks the second time its network has failed in five days, and the third in two months.
On 9 February, an “embarrassing human error” took out Telstra’s mobile, home phone and internet services for around three hours. The telco apologised by offering customers a free day of data.
Last Thursday, Telstra's network went down again for several hours, with the telco still investigating how that outage occurred. Chief executive Andy Penn confirmed it would offer customers another free data day on 3 April as an apology.
The next day, Telstra customers were cut off from accessing Amazon Web Service's Sydney data centre as a result of a third-party routing issue.
Telstra is yet to announce whether customers affected by the latest outage would receive another free data day.