Sangoma to design accelerator card targeted at PC-based telephony

MONTREAL, Quebec, Canada – June 16, 2008 – Octasic Inc., a leading innovator of media processing solutions, today announced that it has begun sampling its Vocallo multi-core gateway DSP[] platform, which provides unparalleled value for voice and video over IP applications.

Vocallo, based on Octasics unique asynchronous Opus DSP core architecture, offers the highest performance-to-power ratio in the industry. Coupled with Octasics pristine voice and video quality, developers can significantly reduce their system cost while enhancing total solution quality. (See related release on new Vocallo video software.) Vocallos flexible architecture allows media gateway designers to not only match an offering to their specific requirements, but to enhance that offering and create a host of new products from a single product development.

“We worked closely with our customers to design a platform on which they can develop the new generation of media gateway and enterprise IP communication servers,” said Frédéric Bourget, Octasics director of product management. “We are now seeing intense interest from developers who require a complete, cost-effective solution that meets their product design challenges.”

Sangoma Technologies (TSX VENTURE:STC) has chosen Vocallo to develop an accelerator card targeted at PC based telephony.

“We are excited to use Vocallo in our next generation products,” said David Mandelstam of Sangoma Technologies Corporation. “Octasic has always delivered superior quality products, with unmatched performance and power. Vocallo will allow us to expand our business into new markets.”

About Octasic

Octasic Inc. provides media processing silicon and software solutions for converged carrier, enterprise and terminal communication equipment manufacturers worldwide. The companys solutions are based on Opus, the industrys first commercial asynchronous DSP core with unmatched power and space savings that significantly reduces total system cost. Leveraging a unique combination of application expertise and silicon technology, Octasic is able to work closely with telecom equipment manufacturers to provide complete industry leading solutions. Founded in 1998, Octasic is a privately-held company headquartered in Montreal, Canada. For more information, please visit www.octasic.com.

About Sangoma Technologies Corporation

Sangoma Technologies Corporation is the premium provider of PC-based hardware and software for proprietary and open source data and telephony transport solutions. The company develops and manufactures the most scalable and reliable voice and Wide Area Network data cards in the industry, including the award-winning Advanced Flexible Telecommunications (AFT) product line. Founded in 1984, Sangoma Technologies Corporation is publicly traded on the TSX Venture Exchange (TSXV: STC). Additional information on Sangoma can be found at: www.sangoma.com.

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Octasic PR Contacts

Joyce Radnor or Bree Clidence

SVM Public Relations

+1-617-787-5192 or +1-760-940-9025

joyce.radnor@svmpr.com or bree.clidence@svmpr.com

Tiffany Richardson

MRB Public Relations (For Sangoma)

(732) 758-1100 Ext. 101

trichardson@mrb-pr.com