PRIMUS Telecommunications: PRIMUS Telecommunications to Report Second Quarter 2009 Results on August 13, 2009

MCLEAN, VA--(Marketwire - August 10, 2009) - PRIMUS Telecommunications Group, Incorporated (OTCBB: PMUG), a global facilities-based integrated communications services provider, will issue second quarter 2009 results on Thursday, August 13, at 4:05 PM ET.

The Company will hold a conference call and webcast, originally scheduled for August 13, 2009 at 5:00 PM ET, on Wednesday, September 23, 2009 at 8:30 AM ET to discuss its outlook for the remainder of 2009 and its longer-term strategy.

The September 23rd conference call can be accessed on the Internet via the Investor Relations section of PRIMUS' website at www.primustel.com or by dialing (866) 305 - 6438 (domestic) or (706) 679 - 7161 (international), Conference ID # 24469714. Please access the call 10-15 minutes prior to the scheduled start time.

The webcast will also be archived on PRIMUS' website. A telephonic replay of this conference call will also be available by dialing (706) 645-9291 or (800) 642-1687 and using the conference ID above from 11:30 AM on September 23 until 11:59 PM ET time on September 30.

PRIMUS Telecommunications Group, Incorporated is an integrated facilities-based 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 500 points-of-presence (POPs) throughout the world, ownership interests in undersea fiber optic cable systems, 18 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, Virginia.

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