Ubiquity Software Selected as SIP Supplier to BT's 21st Century Network IP Transformation Programme; Ubiquity SIP Application Server Selected As Service Creation Platform

Business Wire, May 2, 2006

REDWOOD CITY, Calif. -- Ubiquity Software Corporation plc (LSE:UBQ.L), a leading provider of SIP-based communications software, today announced it has signed an agreement with leading UK-based Tier 1 carrier British Telecom (BT). Ubiquity has been selected as a supplier of SIP platforms for BT's 21st Century Network (21CN) programme following successful completion of a rigorous selection process. Ubiquity's SIP Application Server (SIP A/S) and Service Creation Environment will enable a range of next generation of converged voice and multimedia services for consumers and business users to be developed and deployed quickly.

According to BT, 21CN, the world's most radical next generation network transformation programme, will put BT at the cutting edge of innovation, providing UK industry with a real competitive advantage, and consumers with a world-class communication service for the 21st Century. BT recently unveiled a vision of the 21CN where customers will have greater control over the services they receive by being able to customise, personalise and change services in real time. BT's customers will also enjoy access to a wealth of multimedia information and entertainment services, delivered to a device of their choice, whether at home, in the office or on the move. In the converged world of 21CN, BT customers benefit from greater flexibility and cost-efficiency and additionally, 21CN will enable BT to introduce new services at a speed that was previously not possible.

The selection of Ubiquity's SIP Application Server (SIP A/S) and Service Creation Environment will help BT to deliver on this vision by enabling BT to rapidly develop and deploy a range of next generation voice and multimedia services using standards such as SIP Servlets and Parlay-X on a single common capability platform.

"With Ubiquity's SIP Application Server, BT is able to leverage a single unified service creation and delivery platform for new voice and multimedia services. This will allow BT to implement new services -- dramatically reducing the time to bring new services and capabilities to market," said Ian McLaren, president and CEO of Ubiquity Software. "We are honoured to be selected as a key part of one of the most innovative next generation network transformations in the world."

About Ubiquity Software

Founded in 1993, Ubiquity Software (LSE:UBQ.L) is revolutionizing the communications marketplace with solutions that enable service providers to quickly develop and deploy innovative revenue-generating services. Ubiquity offers deployment platforms, applications, development tools and integration technology for converged voice, video and data services. Ubiquity's SIP Application Server (SIP A/S) is the services deployment platform standard for many of the world's leading telecommunications carriers. Ubiquity partners with leading network equipment vendors, system integrators, ISVs, and developers to bring new multimedia communications solutions to a rapidly changing global market. Ubiquity is headquartered in Cardiff, Wales with corporate offices in Ottawa, Canada and Redwood City, CA, with sales offices in Japan and China. For more information, visit www.ubiquitysoftware.com or email info@ubiquitysoftware.com.