Press Release

DSLi LAUNCHES NEW VONAGE-TYPE SERVICE
TO CONSUMER AND BUSINESS MARKETS USING BROADSOFT'S BROADWORKS

DSLi Jolts Market with Lower Prices and Superior Business Feature Set

GAITHERSBURG, MD, October 21, 2003 -- BroadSoft® Inc., the leading provider of hosted communications platforms, and DSLi, a leading-edge integrated communications provider, today announced that DSLi has deployed BroadSoft's BroadWorks® platform to take broadband, voice over the Internet Protocol (VOIP) services to a new level. Available worldwide today, DSLi's new Virtual Office Exchange (Vox3) broadband VOIP services include bundled local and long distance packages starting at $9.95 and a full set of enhanced voice features for small businesses.

In addition to providing some of the world's most competitive long distance rates, with DSLi's Vox3 service, international users also get a physical mailing address in the United States. With this US presence, international users can receive packages, mail and other items such as publications and have them cleared through their countries' customs offices and delivered to their home location.

"BroadSoft's BroadWorks platform allows DSLi to beat Vonage in terms of price, quality of service and feature richness." said Mario M. Bustamante, CEO of DSLi. "With BroadWorks, we were able to quickly deploy a service that supports lower costs for consumers, all the applications valued by business users, and the ability to resell branded services to other carriers that will scale to millions of subscribers."

BroadSoft's BroadWorks platform enables DSLi to compete against other market leading, broadband VOIP service providers, like Vonage, with the following additional benefits.

• A comprehensive range of business applications including hosted PBX and unified messaging features.
• Multi-language support for service deployments worldwide.
• An easy to use web-branding wizard to support a wholesale service to other carriers and channels.
• Compatibility with traditional telephones, SIP phones and many SIP soft clients including MSN Messenger.
• The reliability, redundancy, and regulatory capabilities required to scale service to millions of subscribers.

"BroadSoft's BroadWorks platform gives service providers the flexibility to quickly target new markets with advanced, reliable and quality services," said Mike Tessler, president and CEO of BroadSoft. "By using BroadWorks, DSLi raises the bar for quality that residential and small business customers can expect from a broadband VOIP service provider. Furthermore, BroadWorks lets DSLi extend into the wholesale market by reselling to carriers that want their own branded service but don't want to build it."

ABOUT DSLi
DSLi is a new breed of Integrated Communications Provider (ICP) offering voice services together with broadband data connectivity over its own network. DSLi has built applications, based upon Session Initiation Protocol (SIP) Telephony, that allow customers to use and manage their services via broadband technology at considerably lower cost than conventional means. Services include: advanced phone features, Virtual Office Exchange (Vox3), a virtual PBX replacement, managed security and Web hosting services. For more information, please visit the company's Web site at www.dsli.com or e-mail sales@dsli.com. To learn more about DSLi's Vox3 service, please visit www.vox3.com.

ABOUT BROADSOFT
BroadSoft is the leading provider of hosted communications platforms, holding the largest market share in the Hosted PBX and IP Centrex space with the most announced customers. Recognized worldwide, BroadSoft has recently expanded its global customer base to include Telstra, the incumbent carrier in Australia. BroadSoft also closed its third round of $32.5 million in funding in September 2002, raising a total of $60 million to date from leading venture capitalists and was recently named to Boardwatch's list of The Top 10 Private Companies. The company's flagship product, BroadWorks, provides a comprehensive range of applications including Hosted PBX, IP Centrex, and Voice VPN. Leading telecommunications industry publications, such as Communications Solutions, Internet Telephony and Network Magazine, have recognized BroadWorks as "Product of the Year". BroadSoft is located near Washington, D.C., in Gaithersburg, Maryland, and maintains a research and development facility in Montreal, Canada.

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