PRESS INFORMATION FOR

IMMEDIATE RELEASE

Sangoma Technologies and TeleSoft International Partner to Bring the Best ISDN Access to VoIP

TORONTO, ONTARIO--(Marketwire - Sept. 2, 2010) - Sangoma Technologies Corporation (TSX VENTURE:STC), a leading provider of hardware and software enabling server-based voice and data communication applications, today announced that it has expanded its multi-year relationship with TeleSoft International to use TeleSoft's TsLink3 PRI ISDN stack in the Sangoma Media Gateway (SMG) and related products. TsLink3 ISDN software is conformant with the world standards for both the network and user sides of the North American NI-2, Lucent 5ESS & Nortel DMS100, ETSI EuroISDN and Japanese ISDN variants. PRI ISDN is currently the most popular method used by enterprise class VoIP devices to connect to the PSTN, and Sangoma's Media Gateway allows customers to quickly and easily connect to the PSTN with a proven and reliable product.

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 TeleSoft International

TeleSoft International is a US-based premier supplier of telecom access software used in carrier class equipment, enterprise devices and terminal equipment. TeleSoft's stacks are deployed in products used worldwide and are used in many carrier, cable, and MSO networks and support high availability. TeleSoft offers a wide range of protocols, including BRI and PRI ISDN, QSIG, ARINC-746, T1 RBS, E1 CAS R2, Frame Relay and Multi-Link Frame Relay and PPP and ML-PPP.

Sangoma previously used TeleSoft's software in the Netborder series of products, and they selected TeleSoft as their primary PRI ISDN provider for their current and future products because of this excellent experience. "We chose TeleSoft because our experience has been that the software just works. We don't get any calls from customers complaining about our products when using TeleSoft's ISDN," said David Mandelstam, president and CEO of Sangoma. He added, "There is an initial up-front fee but the total cost of ownership is lower than for open-source solutions, because the TeleSoft code is easy to work with, fully supported and is exceptionally reliable. Not having to fix someone else's bugs means that our engineers can work on new value-added features for our customers. This high quality makes our customers more profitable because they don't have the expense of debugging and fixing someone else's product."

"As the VoIP to PSTN market accelerates, system developers, OEMs and VARs are realizing that the most important factors determining success are high performance products that are both robust and reliable," said Chris Cox, vice president of marketing at TeleSoft International. "Sangoma products set the standard in providing the best combination of hardware and software quality in the VoIP to PSTN market and we are delighted to be a factor in their success."