Press Release

BroadSoft Reaches 100th Customer Milestone

Industry-Leading Tier 1, CLEC, Wholesale and ISP Wins, Technology Innovations and Channel Partner Relationships Reinforce Continued VoIP Application Software Market Leadership

GAITHERSBURG, MD - May 16, 2005 - BroadSoft®, Inc., the leading provider of VoIP application software, today announced that 100 customers now use its BroadWorks® platform. BroadSoft is the first company in the VoIP application software market to reach this important milestone following the addition of 10 new customers from across the globe in the first quarter of 2005. These new customers include incumbent carriers and service providers in Africa, Asia, Australia, North America and Europe.

Underscoring its global industry leadership position, BroadSoft now counts among its customers 15 Tier 1 carriers worldwide, including BellSouth, MCI, Singtel and Telstra - three times that of its nearest competitor. Additionally, BroadWorks is currently deployed by more than half of the top 20 competitive local exchange carriers (CLECs) and many leading VoIP service providers, wholesalers and ISPs.

"One of the key metrics for market leadership is a company's customer base, including the major service providers that will drive migration to advanced IP communications," said Mark Bieberich, director, Communications Network Infrastructure, Yankee Group. "In this category, BroadSoft has set the bar high, capturing many top-tier global carriers and incumbents, as well as major competitive customers."

BroadSoft continues to set the pace in VoIP applications innovations in 2005, by shipping the industry's first IP Multimedia Subsystem (IMS)-compliant platform. IMS allows both wireless and wireline carriers to deliver the same advanced applications over landline, mobile or residential broadband networks. In 2005 BroadWorks also became the first VoIP application platform to provide a solution to critical IP PBX-hosted VoIP interworking through its joint SIPconnect initiative with manufacturers and service providers.

"Attaining 100 customers represents an exciting milestone, but it is the depth and quality of these wins, rather than the quantity, that solidifies BroadSoft's market leadership position," said Mike Tessler, president and CEO for BroadSoft Inc. "We intend to build on this success by continuing to deliver innovative, carrier-class VoIP application solutions."

A sampling of service providers selecting BroadWorks in the first quarter of 2005 include:

• Simple Signal of Dana Point, Calif. - a full service integrator of telecommunications services, specializing in VoIP business communication solutions. Utilizing the BroadSoft technology, the Simple Signal's team of engineers designs comprehensive strategies for businesses to unify their communications initiatives.

• Datatend Limited head office in Welshpool with offices in London, U.K - a Hosted VOIP distributor in the United Kingdom specializing in wireless technologies and next-generation voice

• Internode an Australia-wide advanced broadband services provider with its own national QoS-capable IP backbone network and five years of production VoIP experience is leveraging the BroadWorks platform to launch residential and SOHO carrier-grade VoIP services

• InTechnology of Harrogate, U.K. - one of Europe's leading providers of IT infrastructure solutions and managed voice and data solutions to businesses

ABOUT BROADSOFT
BroadSoft's VoIP application software is revolutionizing the delivery of hosted telephony and multimedia
services. Its flagship BroadWorks® technology empowers wireless and wireline 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's customer base of 100 network operators, including BellSouth, MCI, Singtel, Telstra and XO Communications leads the industry with more than 900,000 lines deployed. Additional information is available at www.broadsoft.com.

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

For further information contact:

Calysto Communications for BroadSoft BroadSoft
Cameron Smith
+1 (404) 266-2060 ext.19
csmith@calysto.com

BroadSoft
Hilary Tomasson
+1 (240) 364-5147
htomasson@broadsoft.com

# # #