Calysto Communications to Provide PR Support for Sangoma Technologies Corporation

ATLANTA (September 14, 2009) – Calysto Communications, a global public relations and social media marketing firm focused on the broadcastingmobile and telecommunications industries will provide public relations support to Sangoma, a provider of PC-based hardware and software for proprietary and open source based data and telephony transport solutions.

“Our main objective will be to give Sangoma the leverage it needs to increase its share of voice in the global telecom market.” commented Laura Borgstede, CEO, Calysto Communications.

Calysto has nurtured relationships with the most respected media and analysts in the telecom industry for more than 10 years. Calysto will provide Sangoma with a wide range of public relations servicesincluding media and analyst relations, messaging and executive visibility.

“We chose Calysto because of their reputation of excellence and their deep telecom industry connections will be a valuable asset to help us achieve our goals.” said Serge Forest, vice president of Marketing at Sangoma.

About Sangoma Technologies Corporation

Sangoma is the premium provider of voice and data connectivity components for software-based communication applications. Sangoma's data cards, voice cards, gateways and connectivity software are used in leading PBX, IVR, Contact Center and data communication applications worldwide. The product line represents a comprehensive toolset for deploying cost-effective, powerful, and flexible software communication applications.

Founded in 1984, Sangoma Technologies Corporation is publicly traded on the TSX Venture Exchange (TSX VENTURE:STC). Additional information on Sangoma can be found at: www.sangoma.com.

About Calysto Communications

Founded in 1999, Calysto Communications (www.calysto.com) is a global public relations and social media marketing firm focused solely on the specialized needs of the technology industry in the broadcasting, mobile and telecommunications sectors. We provide a full suite of services to emerging and established business-to-business and business-to-consumer organizations. Our all-senior management team uses an award-winning approach proven to help Calysto clients drive sales, create value for shareholders, move toward liquidity or raise overall awareness by directly reaching market influencers. In the last three years, Calysto has consistently ranked among the top PR firms in the technology industry, according to an independent survey of technology journalists conducted by PRSourceCode. Calysto also publishes a free e-newsletter, PR VibesTM (www.prvibes.com), which provides industry players with insight into media and analyst moves around the industry; industry events and tradeshows; and trends in marketing and public relations.