PRIMUS Telecommunications and TalkSwitch Establish Interoperability in the United States

MCLEAN, VA & OTTAWA, ON – April 24, 2006 - Primus Telecommunications, Inc. an integrated communications services provider offering international and domestic voice, voice-over-Internet-protocol (VoIP), Internet, wireless, data and hosting services to business and residential retail customers and TalkSwitch(R), a company specializing in the design and manufacture of innovative voice systems for small and multi-location businesses, today announced full interoperability between Primus's calling services and TalkSwitch's 48-CVA PBX.

The ability to bundle Primus VoIP calling service and TalkSwitch 48-CVA PBX offers a number of benefits for new and existing TalkSwitch customers. Customers can take advantage of the cost and feature benefits of VoIP including follow-me functionality and conferencing, while maintaining a connection to the traditional telephone network should they choose to do so.

"The distribution of VoIP services nationwide can best be achieved through strategic alliances with innovative equipment providers like TalkSwitch. We look forward to bundling our VoIP services with the TalkSwitch PBX and leveraging the strength of their Value Added Reseller sales channel to deliver smart, economical and robust solutions to small businesses," said Joe DiMaio, Vice President Enterprise Solutions, Primus Telecommunications.

"Offering interoperability with top-tier service providers like Primus is one of the ways we continue to deliver choice and flexibility to our customers," said Jan Scheeren, President and CEO, TalkSwitch. "They want a solution that gives them powerful telephony features, but that also helps them take advantage of the affordable calling plans available today. Combining a TalkSwitch PBX with a calling plan from Primus is a great way to meet both of those needs."

Joint deployments of Primus Telecommunications and the TalkSwitch PBX will provide intelligent call processing at the customer premises, while the user is free to select from a wide range of voice, data and access options provided by Primus. Primus and TalkSwitch will target small and multi-location business. Each TalkSwitch telephone system comes loaded with a host of features, including multi-level auto attendants, call cascade options, voicemail and will feature Primus Telecommunications' VoIP calling plans tailored to the needs of that particular customer.

About TalkSwitch
TalkSwitch designs innovative telephone systems that provide small offices with powerful communications solutions at unprecedented prices. TalkSwitch is feature-rich, uniquely customer installable and easily upgradeable and expandable. Delivering powerful remote extension capabilities and a choice of PSTN or combined PSTN/VoIP connections, TalkSwitch is the ideal hybrid PBX for small and multi-location businesses with 1 to 32 phone users per office. For more information call (888) 332-9322 or visit our website at www.talkswitch.com.

About Primus Telecommunications, Inc.
Primus Telecommunications, Inc., is a wholly-owned subsidiary of PRIMUS Telecommunications Group, Incorporated (Nasdaq:PRTL), an integrated communications services provider offering international and domestic voice, voice-over-Internet protocol (VOIP), Internet, wireless, data and hosting services to business and residential retail customers and other carriers located primarily in the United States, Canada, Australia, the United Kingdom and western Europe. PRIMUS provides services over its global network of owned and leased transmission facilities, including approximately 350 points-of-presence (POPs) throughout the world, ownership interests in undersea fiber optic cable systems, 16 carrier-grade international gateway and domestic switches, and a variety of operating relationships that allow it to deliver traffic worldwide. Founded in 1994, PRIMUS is based in McLean, VA.

For more information please contact:
Chris Brennan
Public Relations Manager,
TalkSwitch
613-725-2980 x 136
cbrennan@talkswitch.com