VANCOUVER, Sept. 13 /PRNewswire-FirstCall/ -- Xten Networks, Inc. (OTCBB: XNWK), a provider of VoIP (Voice over Internet Protocol), Video over IP, Instant Messaging (IM), and Presence SIP softphones, has appointed Jason Fischl as Chief Technology Officer, effective September 1, 2005. He will lead the expansion of the Xten portfolio of softphones and SDKs; drive the strategic direction for product planning and architecture; and have the responsibility of providing technical and solution leadership to Xten's customers. "With our customers increasingly seeking ways to provide innovative, reliable, secure and cost-effective new VoIP products and services, Jason's appointment as CTO is particularly timely. As he is one of the industry experts in SIP/VoIP, he will help us to evolve and communicate our vision of converged, next-generation SIP-based communications' solutions and also spearhead our efforts to introduce new services and technologies in the fast- paced VoIP marketplace," said Mark Bruk, a founder and Chairman of Xten. "As one of the clear leaders in the SIP endpoint space, Xten has done an excellent job delivering high-quality, cost-effective SIP-based solutions to carriers and service providers worldwide," said Jason Fischl. "Demand is strong among carriers looking to either launch or extend and enhance their current VoIP offerings, and Xten is in a prime position to meet this demand. I look forward to contributing to its continued success." Before joining Xten, Jason was a founder of the consulting firm SIP Edge, which provides SIP/VoIP client/server architecture and implementation consulting. Prior to co-founding SIP Edge, he was a founder and the CTO of PurpleComm, Inc., which has operations in Taipei, Beijing, Shanghai, and Santa Clara. PurpleComm, under the brand TelTel, is a SIP service provider offering residential VoIP, presence and Instant Messaging services to users around the world, with a primary focus on the Asian marketplace. TelTel launched in July 2004 and rapidly grew to over 1 million subscribers, making it the largest SIP deployment in the world. Prior to co-founding PurpleComm, he was a founder and CTO of Cathay Networks, which developed a SIP-based IP Centrex system. Jason is also one of the founding board members of both SIPfoundry and Vovida.org. In 2002, he helped found the reSIProcate open source SIP stack project and has been one of its key contributors. About Xten Networks, Inc. Xten Networks is a developer of award-winning, high-quality, carrier- grade VoIP (Voice over IP) and Video over IP 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. eyeBeam - Xten's feature-rich SIP Video over IP softphone with IM and Presence - recently received both Communications Solutions(R) Magazine's and INTERNET TELEPHONY(R) Magazine's "Product of the Year" Award for 2004. Xten's Pocket PC SIP Softphone was recently named a 2005 Innovation Award winner from INTERNET TELEPHONY(R) magazine. Through deployments with leading service providers, Xten technology is deployed in more than 5,400,000 IP endpoints worldwide. For more information please visit http://www.xten.com/. For more information on Xten, please contact Investor Relations: Todd Hanas +1.604.484.3668 DATASOURCE: Xten Networks Inc. CONTACT: Investor Relations: Todd Hanas, (604) 484-3668,

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