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Transaction Network Services Jumps Aboard Primus Next Generation Metro Fibre Ring in Sydney

Primus Australia, a part of PTGi (Primus Telecommunications Group, Inc.) (NYSE: PTGI) today announced that Transaction Network Services (TNS) has connected to the Primus Metro Fibre over Optical Transport Network (OTN) to support its Australian office network infrastructure.

TNS is a leading provider of fast, reliable and secure transaction-oriented solutions for the world's leading retails, banks, processors, telcos, and financial markets.

The deal will see TNS using the Primus Australia OTN DWDM* optical service to link its Sydney to Brisbane offices; providing bandwidth connection of 100Mb/s with the flexibility to upgrade to 10Gb/s and beyond in the future.

According to TNS Procurement Manager, John Nisbet, the scalability of Primus Australia's Metro Fibre was an influencing factor in the company's decision to adopt OTN.

"The requirements of our employees require a sizeable bandwidth, so our ability to respond to their requirements means scalability is paramount. Primus' technical and customer support has been helpful in creating an efficient office environment for our employees' day to day activities."

Primus Australia CEO Tom Mazerski commented: "TNS is a major global player in communications solutions, so for them to select OTN reinforces the quality of our high performance, ultra-low latency fibre optic services for the Australian market."

Primus Metro Fibre over OTN, which was announced in October 2011, is designed to deliver state-of-the-art, high capacity data services that are both cost effective and efficient through the redundant ring architecture. The architecture ensures the delivery of ultra-low latency bandwidth built on the shortest routes available, a core competency of OTN.

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, Australia, and Brazil. Founded in 1994, PTGi is headquartered in McLean, Virginia.

About TNS http://www.tnsi.com/
Transaction Network Services (TNS) is a leading global provider of data communications and interoperability solutions. TNS offers a broad range of networks and innovative value-added services which enable transactions and the exchange of information in diverse industries such as retail, banking, payment processing, telecommunications and the financial markets. Founded in 1990 in the United States, TNS has grown steadily and now provides services in over 60 countries across the Americas, Europe and the Asia Pacific region, with our reach extending to many more. TNS has designed and implemented multiple data networks which support a variety of widely accepted communications protocols and are designed to be scalable and accessible by multiple methods. For further information about TNS, visit www.tnsi.com. 'One Connection, A World of Opportunities'

*DWDM - Dense wavelength division multiplexing
*OTN - Optical Transport Network