MELBOURNE, AUSTRALIA--(Marketwire - Feb 29, 2012) - Primus Australia, [ a part of PTGi (Primus Telecommunications Group, Inc.) ] (NYSE: [ PTGI ]), today announced thanks to its robust network design and redundancy, its IP network didn't skip a beat and its own customers stayed on line during last Thursday's national internet outage that reportedly saw millions of customers left without a workable service for approximately 45mins.

Primus customers were able to stay on line because Primus' network uses diverse routes in connection with its international traffic via a combination of its own peering relations throughout and within Australia for peer-to-peer termination and terminates this traffic via diverse routing through the USA, Japan and Singapore.

"It was business as usual for Primus. Our team saw the issue as it developed and were able to get in front of it with ease. Unlike many other service providers, our network doesn't rely on one supplier to keep our customers connected. Instead we use multiple connections to ensure that our customers are always 'on.'

"Australian customers are very limited for choice when it comes to diverse communications paths so we are naturally proud of our diverse routes and termination points and it's why so many customers buy from Primus," said Group General Manager Network Operations/Planning, Arne Bergquist.

About Primus Australia [ http://www.primus.com.au ]
Primus Australia is part of Primus Telecommunications Group, Incorporated (PTGi) and is one of Australia's largest telecommunications carriers. It offers a range of Business and Residential data, broadband, VOIP, Mobile, Telephone and Data Centre services Australia wide. The Primus Australia network provides nationwide coverage through its own backbone network with facilities in 66 cities and 286 DSLAM exchanges across Australia. Primus Australia operates its own fibre network in the five major capital cities, delivering a range of business direct-connect services including Hosted IP PBX services, IP, Ethernet, OTN, ATM, ISDN, high speed broadband, data centre and inbound and outbound voice services .

About PTGi [ http://www.ptgi.com ]
Primus Telecommunications Group, Incorporated (PTGi) is a leading provider of advanced communication solutions, including traditional and IP voice, data, mobile services, broadband Internet, collocation, hosting, and outsourced managed services to business and residential customers in the United States, Canada, Australia, and Brazil. PTGi owns and operates its own global network of next-generation IP soft switches, media gateways, hosted IP/SIP platforms, broadband infrastructure, fiber capacity, and data centres located in Canada and Australia. Founded in 1994, PTGi is headquartered in McLean, Virginia.