MCLEAN, VA--(Marketwire - May 8, 2012) - Primus Telecommunications Group, Incorporated (NYSE: [ PTGI ]) ("PTGi" or the "Company"), a global facilities-based integrated provider of advanced telecommunications products and services, will release its first quarter 2012 financial results early morning, before the market's open on Thursday, May 10, 2012 and hold a conference call that same day at 8:30 AM ET. The change in the timing of the release from Wednesday, May 9^th after market close is being made to simultaneously disclose financial results on a global basis in view of the company's pending sale of its Australian operations to M2 Telecommunications Group Ltd.

To access the conference call, please dial 866-305-6438 (toll free) or 706-679-7161 approximately 10 minutes prior to the start of the conference call. The conference call will also be broadcast live over the Internet with an accompanying slide presentation. The slide presentation will go live simultaneous with the issuance of the first quarter 2012 press release and can be accessed via the Investor Relations section of PTGi's web site at [ www.ptgi.com ]. The webcast and slide presentation will be available for replay for 90 days at [ www.ptgi.com ].

A telephonic replay of this conference call will also be available by dialing 855-859-2056 (toll free) or 404-537-3406 (access code: 71433484) from 11:30 AM ET on May 10, 2012 until midnight ET on May 16, 2012.

About PTGi
PTGi (Primus Telecommunications Group, Incorporated) 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 and Australia. PTGi is also one of the leading international wholesale service providers to fixed and mobile network operators worldwide. 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 centers located in Canada and Australia. Founded in 1994, PTGi is headquartered in McLean, Virginia.