SANTA CLARA, CA (News - Alert) AND GAITHERSBURG, MD, July 17, 2007 � Interoperability testing and validation has been successfully completed between Aspen Network�s 365- VOIPTM multi-link WAN

switch and SIP ALG and BroadSoft (News - Alert)�s BroadWorks® VoIP application platform. Aspen Networks is now part of the BroadSoft Access Partner program.

Aspen Networks is a leading manufacturer of converged network appliances, including the Aspen 365-VOIP multi-link WAN switch. The 365-VOIP enables hosted providers and small- to-medium enterprises to insulate their VoIP services from WAN outages or severe degradations by using multiple ISP links, and includes lower-cost broadband options such as DSL

, cable and wireless. Aspen�s advanced switching software features fault detection, auto- failover, load sharing and VoIP prioritization, ensuring maximum uptime and quality of service.

BroadSoft is a leading provider of VoIP application software. Its award-winning BroadWorks platform is used by service providers across the globe to deliver VoIP services to large enterprises and small and medium businesses. Interoperability with BroadSoft�s BroadWorks VoIP application platform makes the Aspen 365-VOIP fully interoperable with IP telephony services from leading carriers around the world.

�We�re delighted to add Aspen Networks as a BroadSoft Access Partner,� said Michael Tessler, president and CEO of BroadSoft. �Our service providers are looking to offer their customers VoIP solutions that are both high-performance and cost-effective, as well as reliable and easy to manage. The active use of multiple broadband links for VoIP fault tolerance to ensure quality of service addresses real customer needs for both small and medium businesses and larger enterprises.�

�Aspen helps provide unparalleled reliability for hosted VoIP services by eliminating the WAN link as a single point of VoIP failure,� said Dan Berger, president and CEO of Aspen. �By allowing VoIP service providers to deploy a customer premise box that utilizes multiple active WAN links for VoIP traffic, the Aspen 365-VOIP delivers built-in fault-tolerance and quality of service, improving customer satisfaction and lowering support costs. With the completion of interoperability testing with BroadSoft�s BroadWorks VoIP application platform, we�ve teamed with the market leader to ensure that their partners can deliver the highest reliability WAN performance for their customers.�

ABOUT THE ASPEN 365-VOIP
The Aspen 365-VOIP is a SIP

application layer gateway (ALG) with multi-link WAN switch architecture that helps hosted VoIP service providers and their customers benefit from more reliable, secure and cost-effective services. The 365 supports VoIP traffic on any mix of 2-4 active links (T1

, DSL, cable, WISP). It can be deployed with the ISP links already in operation at the customer premise and/or with those provisioned by the VoIP service provider. By eliminating a single WAN link as a point of failure, Aspen helps to ensure non-stop VoIP service.

ABOUT THE BROADWORKS PLATFORM
BroadSoft's IMS-compliant BroadWorks platform provides a comprehensive range of VoIP applications, including hosted PBX

, IP Centrex, mobile PBX (News - Alert), business trunking and residential broadband services fully integrated into a single VoIP application platform. BroadWorks is capable of providing these applications with the reliability, redundancy, scalability and regulatory capabilities required to deliver carrier-class service.

ABOUT BROADSOFT®
BroadSoft provides VoIP application software that enables the delivery of hosted telephony and multimedia services. Its award-winning flagship BroadWorks® technology empowers wireless, wireline and cable carriers to deliver next-generation voice and multimedia applications and advanced features that enable them to 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 7 of the top 10 and 13 of the top 25 largest carriers worldwide, as measured by recent annual revenue, including Korea Telecom, KPN, Singtel, Sprint (News - Alert), Telefonica de Espana, Telstra, T-Systems, and Verizon. For additional information, go to www.BroadSoft.com.

ABOUT ASPEN NETWORKS
Aspen Networks (www.aspen-networks.com) manufactures and markets a family of converged network appliances that deliver high availability and peak application performance by utilizing multiple WAN links for carrier and path diversity (any mix of T1/T3, xDSL, Cable, and WISP). Aspen�s products intelligently manage all traffic flows across multiple ISP links, providing fault-tolerance, load-balancing and optimized application delivery. The company is privately-held and maintains its headquarters in Silicon Valley.

BroadSoft and BroadWorks are registered trademarks of BroadSoft, Inc. 365-VOIP is a trademark of Aspen Networks, Inc. All other names are trademarks of their respective companies.
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For further information contact:

Aspen Networks
Daniel W. Berger
Aspen Networks Inc.
(408) 246-4059 x108
dan@aspen-networks.com

For PR info:
Mary Shacklett
Transworld Data Tel 360-956-9536
Email TWD_Transworld@msn.com

BroadSoft
Francis Hopkins
+1 (240) 364-5375
fhopkins@broadsoft.com