SANTA CLARA, Calif., Aug. 6, 2009 (GLOBE NEWSWIRE) -- 8x8, Inc. (Nasdaq:EGHT), provider of Internet Protocol (IP) communications solutions for business and residential users, today announced it is providing voice trunking services to cloud telephony solution provider CallFire. CallFire began offering its hosted power-dialing services to small business, call center and enterprise customers over 8x8's established VoIP network last week.