Bridgewater Systems and Ubiquity Software Validate Solution Interoperability for IMS Applications.

OTTAWA -- Interoperability testing confirms that Bridgewater Systems' Home Subscriber Server (HSS) operates seamlessly with Ubiquity Software's industry-leading SIP Application Server Platform for IP multimedia subsystem (IMS) applications

E[acute accent]Bridgewater Systems and Ubiquity Software (LSE: UBQ.L) announced today that they have successfully completed a two-stage interoperability test between the Bridgewater Home Subscriber Server (HSS) and Ubiquity's SIP Application Server (SIP A/S) Platform. The results confirm that service providers can seamlessly incorporate their HSS master database with Ubiquity's award-winning application server platform to quickly and reliably enable IP Multimedia Subsystem (IMS) applications. E[acute accent]Bridgewater, a leading developer of subscriber-centric policy management software for IP-based services, announced the release of the HSS solution in September 2005. This is the first in a series of interoperability tests that are being performed with key vendors in the IMS space. E[acute accent]"We specifically developed our HSS solution to easily integrate with all of the components required to deliver IMS applications," said Tyler Nelson, vice president, Business Development & Marketing for Bridgewater. "This is one of the first in a series of interoperability tests that we have undertaken as part of our commitment to simplifying the implementation of IMS applications for our customers. Results like this show that service providers can confidently integrate HSS with Ubiquity's proven, best-of-breed SIP Application Server." E[acute accent]The HSS solution serves as a master database for subscribers and contains all subscription-related information. By accessing this single database of subscriber profiles, IMS applications can quickly authenticate and authorize users as well as deliver policies to the network to ensure Quality of Service (QoS) for IMS applications. The product is designed to streamline provisioning and operating costs and to make the most of the inherent advantages in an IP-based network. E[acute accent]Ubiquity's programmable, IMS-compliant SIP Application Server is both a carrier-class platform and a programmable, standards-based application creation environment (ACE) that allows providers to develop, deploy and host innovative SIP-based applications. Ubiquity's SIP A/S is pre-integrated with leading network equipment vendors and is leveraged for a host of fixed and mobile VOIP and multimedia applications. E[acute accent]"Streamlining how subscribers access services in a converged services environment is a critical consideration for bringing the rich multimedia applications promised by IMS to the market," said Jeff Liebl, VP Marketing for Ubiquity. "Through this interoperability testing, our respective customers can easily integrate a market-leading subscriber-centric policy management solution that complements our award-winning IMS-based applications platform."

E[acute accent]About Ubiquity

E[acute accent]Ubiquity Software Corporation plc, listed on the Alternative Investment Market of the London Stock Exchange, develops and markets SIP-based communications software to service providers, ISVs and OEMs around the world. Its award-winning SIP Application Server (SIP A/S) is both a carrier-class deployment platform and a programmable, standards-based application creation environment (ACE) that allows customers to develop and deploy next-generation converged communications services. Ubiquity assists customers to accelerate the creation of customized SIP applications through its Professional Services Organization. The company is headquartered in Cardiff and has corporate offices in the US and Canada and representation in Japan and China. For more information, please visit www.ubiquitysoftware.com or email [e-mail].

E[acute accent]About Bridgewater Systems

E[acute accent]Bridgewater Systems develops the industry's most advanced subscriber-centric policy management software for IP-based services. Its solutions help global service providers maximize profits and launch new services faster. Bridgewater does this by providing them with a unified view of their subscribers across all access technologies. With Bridgewater's software, service providers have an intelligent policy-decision point for the management of subscribers, applications, and network resources. The Bridgewater Systems' product suite delivers high performance policy management via its market-leading authentication, authorization and accounting (AAA) and Dynamic Host Configuration Protocol (DHCP) systems. It also offers a range of modular products for application support, mediation, and dynamic broadband management. Bridgewater Systems' proven carrier-class products deliver on-demand data services, extensive revenue capture capabilities, and out-of-the-box value that can be deployed in weeks - instead of months.