Chicago, Ill, June 21, 2004 -- Newport Networks Limited, the developer of advanced VoIP products and Ubiquity Software Corporation, the leading provider of SIP-based communications software, today announced product interoperability to create solutions for next generation carrier-class IP-based voice and multimedia networks.

Newport Networks' products provide session border control for IP signaling and media, while maintaining IP network integrity and security for both IP customer access and carrier peering applications. The Ubiquity SIP A/S is both a carrier-class deployment platform and a programmable, standards-based application-creation environment (ACE) that allows service providers to develop and deploy next-generation converged communications services. By combining Ubiquity's service deployment platform with Newport Networks' carrier-class session border controller, service providers can rapidly deploy next-generation SIP-based applications without compromising their network security.

"Service Providers who are rapidly deploying SIP services require tight integration between network elements," said David Vant, VP Marketing, Newport Networks. "We are pleased to announce interoperability with Ubiquity's carrier-class SIP A/S product which has been deployed by many of the world's largest service providers and systems integrators."

"Carriers need a high capacity session border controller as they ramp up deployment of advanced SIP services to their subscribers," said Jeff Liebl, VP Marketing, Ubiquity. "Newport Networks complements our SIP A/S to meet this need."

Newport Networks and Ubiquity Software will be exhibiting their products at SuperComm in Chicago, June 22-24.

About Newport Networks

Newport Networks Group PLC, listed on the Alternative Investment Market of the London Stock Exchange in May 2004, has designed and developed the 1460 session controller to solve existing commercial and technical problems in the provision of Voice over IP (VoIP) and Multimedia over IP (MoIP) services. The 1460 session controller addresses the key service delivery issues of quality and security, enabling service providers to create new revenue streams from VoIP and MoIP while controlling the cost of delivery. Based in the UK and North America, Newport Networks has an experienced team headed by Chairman Terry Matthews and CEO John Everard. The team has a proven track record of identifying new service provider network technologies, developing products and managing the growth of international businesses.

For further information, please visit www.newport-networks.com or email

ABOUT UBIQUITY

Ubiquity Software Corporation develops and markets SIP-based communications software, including its award-winning SIP Application Server (SIP A/S) and Speak Conference Director. The SIP A/S is both a carrier-class deployment platform and a programmable, standards-based application creation environment (ACE) that allows providers to develop and deploy next-generation converged communications services. Speak Conference Director is a rich media conferencing application built using the SIP A/S and sold to service providers worldwide. Use of the SIP A/S is extended to service providers and Independent Software Vendors (ISVs) through open, standards-based application programming interfaces (APIs). Ubiquity has corporate offices in the US, UK and Canada.

For more information, please visit www.ubiquity.com or email info@ubiquity.com.

Contacts:

Craig Decker +44 (0) 1291 435 700 (HQ) +44 (0) 7775 557 510 (Cell)		Abelson Group for Ubiquity Jennifer Abelson +1-212-579-5743 Jennifer@abelsongroup.com