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Marcatel Leverages BroadWorks VoIP Platform to Offer Voice Services to its Data Customers

BOSTON - September 12, 2006 - BroadSoft, Inc., a leading provider of VoIP application software, today announced at Fall 2006 VON that Marcatel, one of Mexico's largest service providers, is using BroadSoft's VoIP application software as the platform to offer telephony services to its data customers in Mexico. Under the Marcatel Liberty brand, the service provider is delivering a suite of VoIP services, including hosted PBX, to small and mid-sized enterprises and residential broadband voice service.

"We selected the BroadWorks platform because of its flexibility, modularity, and network interoperability," said Tim Heaney, operations director of Marcatel. "Not only has BroadSoft enabled us to venture into new markets by adding voice to our data offerings, but the platform also allows us to add features and expand our services as we go."

"Marcatel is already well known for its robust data infrastructure and flexible data packages," said Michael Tessler, president and CEO of BroadSoft®. "Now, by spearheading the IP telephony business in Mexico, Marcatel is showing market leadership, growing its market share and further strengthening its competitive position."

Marcatel is delivering BroadSoft-based VoIP applications through its integrator partner, Sonus Networks, Inc. (NASD: SONS).

About The BroadWorks Platform

BroadSoft's IMS-compliant BroadWorks® platform provides a comprehensive range of VoIP applications, including hosted PBX, IP Centrex, mobile PBX, business trunking and residential broadband services fully integrated into a single VoIP application platform. BroadWorks provides these applications with the reliability, redundancy, scalability and regulatory capabilities required to deliver carrier-class service.

About Marcatel

Marcatel is one of the largest carriers in Mexico, providing service to over 80,000 business customers through its six customer care centers located throughout the country. The company offers carrier infrastructure, IP and data services. Marcatel provides integrated communication services including local telephony, long distance, 800 numbers, prepaid calling cards, calling cards with international coverage, as well as telephony administration and cost control systems. Marcatel's IP broadband data services include Internet access using DSL, dedicated Nx64 and wireless access, dial-up and private lines. The company also provides carrier services such as dark fiber, private lines, co-location and spectrum frequencies for microwave access. Marcatel also has Contact Center services complementing its offerings and giving the best solutions for your company. Additional information on Marcatel is available at http://www.marcatel.com

About BroadSoft

BroadSoft's VoIP application software is revolutionizing the delivery of hosted telephony and multimedia services. Its flagship BroadWorks technology empowers wireless, wireline and cable carriers to deliver next-generation voice and multimedia applications and advanced features that increase revenue, enhance competitive differentiation and elevate customer satisfaction. BroadSoft's family of carrier-class software products delivers the scale, open architecture and reliability that the world's leading telecommunications companies demand to serve mission-critical enterprise and residential broadband customers. BroadSoft provides VoIP applications to 6 of the top 10 and 11 of the top 25 largest carriers worldwide, including Alestra, Korea Telecom, Singtel, Telefonica de Espana, Telstra, T-Systems, Verizon and XO Communications.

About BroadSoft:

BroadSoft, now a part of Cisco, is a technology innovator in cloud PBX, unified communications, team collaboration, and contact center solutions for businesses and service providers across 80 countries. We aim to empower users and teams to share ideas and work simply to achieve breakthrough performance. For additional information, visit www.BroadSoft.com.

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