Innovative VoIP Provider UbiFone signs OEM partnership with Xten Networks

Santa Clara, CA — May 02, 2005 – Xten Networks, Inc. (OTCBB: XNWK), a provider of VoIP (Voice over Internet Protocol), Video over IP, Instant Messaging (IM), and Presence SIP softphones, today announced that UbiFone, innovative entrepreneurs and visionaries providing state of the art communications solutions through the latest in Public Switched Telephone Network (PSTN) and Voice over Internet Protocol (VoIP) technology, have licensed a co-branded version of Xten's X-Lite VoIP softphone for use within their Broadband Telephony network.

Ubifone's Co-founder, Carlos H Oestby commented, "Xten delivers a robust quality of service and feature-set that are required to serve our customer members. We are impressed by the high performance of Xten's technology and are delighted to be working with one the world's leading softphone providers. By fully integrating Xten's X-Lite softphone within our own back end VoIP solutions and at the same time providing our customer members the option to upgrade to one of the other Xten softphones, be it for a PDA or an enhanced video/IP PSTN conferencing softphone, we have expanded the VoIP deployment options for all our customer members."

Xten's softphones are software applications, which run on devices such as personal computers (PCs) or personal digital assistants (PDAs) or can be easily integrated into web pages or web applications. When an Xten softphone is connAbout UbiFone UbiFone is the trading name of a solid, debt free 13 year old marketing company by the name of Horizon Marketing Associates Ltd, USA, with customer members in over 100 countries. The company provides multi-lingual, cutting edge, state of the art communications solutions that enable its members to save money, and if they so desire, make money by marketing its solutions globally.

About UbiFone

UbiFone is the trading name of a solid, debt free 13 year old marketing company by the name of Horizon Marketing Associates Ltd, USA, with customer members in over 100 countries. The company provides multi-lingual, cutting edge, state of the art communications solutions that enable its members to save money, and if they so desire, make money by marketing its solutions globally. UbiFone's cutting edge communications solutions are changing the way the world communicates. Ubifone provides state of the art solutions that can be utilized from multiple devices such as PC'S, IP Phone's, Cellular/Mobile's, Fixed Landline phones and PDA'S. The company's concept of One World - One Community - One Number is fast catching up with the World Wide Webbers.

About Xten Networks, Inc.

Xten is a developer of award-winning, high-quality, carrier-grade SIP softphones for service providers, cable operators, Internet telephony service providers, IP PBX manufacturers and OEMs. Xten's SIP softphones are available either pre-configured or as a software development kit (SDK), and provide VoIP (Voice over IP), Video over IP, IM (Instant Messaging), and Presence functionality. Xten has a feature-rich FREE SIP softphone dubbed X-Lite, in addition to the fully featured X-PRO commercial softphone and eyeBeam, a SIP Video over IP softphone with IM and Presence. Through its deployments with leading service providers, Xten has more than 700,000 IP endpoints deployed worldwide.

For more information please visit www.xten.com.