Press Release

BROADSOFT ANNOUNCES FIRST VOIP OPEN CLIENT INTERFACE
FOR BOTH TELECOM AND NON-TELECOM DEVELOPERS

Telco-grade Server Requirements Absorbed into BroadWorks
to Spur Development and Deployment of Customized Applications

SAN JOSE, CA - VoIP Developers Conference, August 3, 2004 - BroadSoft®, the leading provider of network communications platforms, today announced that it has radically simplified the development of third-party applications with the most comprehensive open interface for hosted voice services. Based on XML and SIP industry standards, the BroadWorks® Open Client Interface enables developers to focus solely on their area of expertise to deliver high-demand, customized applications on the most widely deployed platform for hosted PBX, IP Centrex and residential broadband voice.

Other platforms require each third-party application to have its own server and set of support functions. For example, a service provider with ten third-party applications could require ten additional servers and ten different solutions for each third-party function (e.g., licensing, back-office integration, redundancy, provisioning, and authentication.) This configuration can result in exponential levels of redundant development and deployment costs and services that are too unwieldy and expensive to manage.

By absorbing these third-party functions into the BroadWorks platform, developers no longer have to be telecom experts to enter this fast-growing field. Using the BroadWorks Open Client Interface, software vendors, service providers and system integrators are free to leverage their core expertise to develop best-of-breed, customized applications that can be marketed to BroadSoft's customers which include BellSouth, Covad, MCI, PCCW, SingTel and Telstra.

"BroadWorks eliminates significant elements of back office integration, and takes care of robustness and scalability that would otherwise have to be built into our product," said Ray Trevisan, vice president of sales and business development at Carbon Twelve. "With BroadWorks, we're able to focus on our core expertise which is developing vivid interfaces and improved workflow applications for next-generation IP Telephony networks"

"BroadSoft has the most experience working with developers and running the most comprehensive program for third-party applications in the hosted space," said Scott Hoffpauir, chief technology officer at BroadSoft. "As a result, we were first-to-market with our Open Client Interface that makes third-party development possible for non-telecom experts. By streamlining the development and deployment process, we're enabling many Java or web developers to enter this exciting new sector."

The BroadSoft Third-party Developers Program provides everything necessary for third-party application development including training on the BroadSoft platform, sample source code, design consultation, joint sales and marketing support, and access to the BroadSoft extranet and user groups.

BroadSoft will demonstrate the BroadWorks Open Client Interface and Carbon Twelve's miRECEPTION and miPA Lite at the VoIP Developers Conference in San Jose, CA at booth number 204. For more information about the BroadSoft Third-Party Developers Program, please email third-party-support@broadsoft.com.

ABOUT BROADSOFT
BroadSoft is the leading supplier of network communications platforms to service providers and channels in the enterprise and residential markets. BroadSoft's flagship product, BroadWorks, provides a comprehensive range of applications including Hosted PBX, IP Centrex, residential broadband and collaborative conferencing, fully integrated into a single platform. The company has the largest customer base in its space worldwide, including BellSouth, Covad, MCI, SingTel and Telstra. BroadSoft is located near Washington, DC, in Gaithersburg, Maryland, and maintains a research and development facility in Montreal, Canada. Additional information can be found at www.broadsoft.com.

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BroadSoft and BroadWorks are registered trademarks of BroadSoft, Inc. All other names are trademarks of their respective companies.