September 20 2005

Boston, MA. – Sept. 20th, 2005 -- Ubiquity Software [LSE: UBQ.L], a leading provider of IP Multimedia Subsystem (IMS) compliant SIP Application Servers, announced it will demonstrate a suite of SIP-based applications for 2005 at Fall VON next week. The company will showcase seven unique, Ubiquity-powered live applications with three strategic partners including Convedia, IBM and Intel. Several demonstrations are being hosted as part of live mobile network operator service trials.

Ubiquity Software [LSE: UBQ.L], a leading provider of IP Multimedia Subsystem (IMS) compliant SIP Application Servers, announced it will demonstrate a suite of SIP-based applications for 2005 at Fall VON next week. The company will showcase seven unique, Ubiquity-powered live applications with three strategic partners including Convedia, IBM and Intel. Several demonstrations are being hosted as part of live mobile network operator service trials.

Live SIP-based application demonstrations in Ubiquity and partner booths include:

• "See What I See" Video from a Mobile Phone
• VOIP with Speech Recognition
• Rich Media Conferencing
• Mobile Voice Conferencing
• Conferencing for Instant Messaging
• Customized Ringback Tones
• Mobile Multi-Player Gaming

"Through our integration with leading IMS core network equipment vendors and by utilizing our rapid service creation environment, we are able to deliver to service providers the next wave of enhanced IP services," said Jeff Liebl, Vice President of Marketing at Ubiquity. "We are empowering service providers to easily combine communications and content to rapidly offer their own unique, converged services to both consumer and enterprise customers."

Note to Editors
IMS, a comprehensive services architecture standardized by the 3GPP, gives operators a common service environment and incorporates IP, SIP, application servers, home subscriber servers and multimedia resource functions. IMS also allows operators to move up the value chain by allowing intelligent content delivery enabled by service and subscriber awareness. Service providers will implement IMS for numerous applications, taking advantage of the subscriber's presence and availability profile to monetize applications such as multimedia messaging, mobile conferencing, push-to-talk, customized infotainment and more.

IMS, a comprehensive services architecture standardized by the 3GPP, gives operators a common service environment and incorporates IP, SIP, application servers, home subscriber servers and multimedia resource functions. IMS also allows operators to move up the value chain by allowing intelligent content delivery enabled by service and subscriber awareness. Service providers will implement IMS for numerous applications, taking advantage of the subscriber's presence and availability profile to monetize applications such as multimedia messaging, mobile conferencing, push-to-talk, customized infotainment and more.  Visit Ubiquity at Fall VON, Booth # 1033 or to schedule a private briefing, contact Jennifer Abelson at 631-462-0003.

About Ubiquity
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 This e-mail address is being protected from spam bots, you need JavaScript enabled to view it .

Contact:
Jennifer Abelson
Abelson Group for Ubiquity
631-462-0003
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