Joint-Solution Expected To Launch in Q4 2005

Redwood City, Calif. — Sept. 21, 2005 —Ubiquity Software [LSE: UBQ.L] announced today that it has signed a global partnership agreement with Huawei Technologies Co., Ltd. ("Huawei"), one of the world’s leading networking and communications equipment suppliers to incorporate its Session Initiation Protocol ("SIP") Application Server ("A/S") as an embedded part of Huawei’s IP Multimedia Subsystem ("IMS") portfolio of products, where Huawei can provide tailor-made state-of-the-art End-to-End IMS solution to customers. Huawei is utilizing Ubiquity’s Application Creation Environment to develop and deliver wireless, wireline and converged SIP-based applications to its customers worldwide who are service providers. The first extended Ubiquity SIP A/S platform based application solution is expected to be generally available to customers later this year. Ubiquity is also enabling Huawei with IMS proof of concept applications such as video See What I See (SWIS), Multiplayer Gaming, Chat Room and Multimedia Conferencing.

"With years of experience deploying next-generation network solutions in over 20 countries, Huawei deeply understands carriers’ needs, and is experiencing a strong demand for our new SIP-based applications," said Mr. Jun Zha, Director of Huawei IMS product line. "Ubiquity’s SIP Application Server allows us to jointly develop IMS applications to demonstrate the value of our joint application creation environment and address our customers’ needs. We look forward to a long-term partnership with Ubiquity."

"We are proud that Huawei has chosen Ubiquity to play an important role in its delivery of the next generation of IMS applications," said Mr. Ian McLaren, CEO of Ubiquity Software Corporation. "Huawei’s fast-growing presence in the global service provider marketplace enables our SIP Application Server to reach a wide pool of fixed and mobile service providers."

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 .

About Huawei Technologies Co., Ltd.
Huawei Technologies Co., Ltd. ("Huawei") is one of the world’s leading networking and telecommunications equipment suppliers, delivering long-term value and potential growth to customers. The company is dedicated to providing innovative and customized equipment, services and solutions to meet the different needs and requirements of customers worldwide.

Huawei’s product portfolio comprises wireless products (eg. UMTS, CDMA2000, GSM/ GPRS/ EDGE and WiMAX); network products (eg. NGN, xDSL, optical network and data communications products); value-added services (eg. Intelligent network, CDN/ SAN and wireless data) as well as mobile and fixed terminals.

Huawei is honoured as one of China’s Top Ten World-Class Brands, according to the result of a survey, which was announced on 31 August 2005, conducted by Financial Times of The United Kingdom.

Huawei won three awards at the award presentation ceremony organized by Frost & Sullivan, a leading telecommunications industry consultancy focusing on Asia-Pacific region, in June 2005. The three awards are: "Wireless Infrastructure Vendor of the Year 2005", "NGN Infrastructure Vendor of the Year 2005" and "Optical Vendor of the Year 2005".

Established in 1988, Huawei is headquartered in Shenzhen, China. The company serves over 300 telecommunications operators including 22 of the world’s top 50 operators.

Huawei’s products and solutions have been deployed in more than 90 countries worldwide. Its contracted sales in 2004 amounted to USD 5.58 billion.

As of June 2005, Huawei has over 30,000 employees worldwide.

For more information, please visit Huawei’s website at http://www.huawei.com.

Contacts:
Linna Yi
Manager-Media Relations
Huawei Technologies Co., Ltd.
Tel: 86-755-28788426
Fax: 86-755-28787276
Mobile: 86-13510763878
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Public Relations for Ubiquity:
Jennifer Abelson
Abelson Group for Ubiquity
+1-631-462-0003
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Asia Pacific Sales for Ubiquity:
Shervin Bakhtiari
Tel: +86-10-6588-7052
Mobile: +86-139-1736-1333
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Investor Relations for Ubiquity:
James Melville-Ross
Cass Helstrip
Financial Dynamics
+44 (0)20 7831 3113