Xten® Appoints Robert Sparks as Chief Technology Officer

Robert Sparks, co-author of the core SIP specification, co-chair of the SIMPLE working group and coordinator of the SIPit events, joins Xten as CTO Santa Clara, August 26, 2004 – /PRNewswire-FirstCall/ – Xten (OTCBB: XNWK) announced, today, the appointment of Robert Sparks to the post of Chief Technology Officer. Mr. Sparks has been working in the computer and communications industry since 1982. He has spent the last 5 years designing and developing SIP-based IP communications infrastructure. Recently he has been an active contributor to IETF protocol development, with a strong focus on improving interoperability of SIP and SIMPLE implementations. Rob Raymond will stay on with Xten as Vice President of Engineering. “People are changing the way they communicate. The Internet, and technologies like SIP are giving us new ways to reach our peers and family that are more natural to use.” said Robert Sparks, chief technology officer of Xten. “Xten’s phenomenal endpoint is leading this revolution.” “Robert is a leader and innovator in IP communications. He is well known for his ongoing contributions in SIP and SIMPLE, technologies that form part of the essence of Xten,” said Erik Lagerway, president and chief operating officer of Xten. “We are honored and excited to have Robert lead our team. You can expect more great things from Xten in the coming months!” About Robert Sparks Mr. Sparks has spent the past 4 years as a principal engineer with dynamicsoft, Inc., where he was responsible for system architecture development. Prior to dynamicsoft, Mr. Sparks was a senior engineer with MCI WorldCom, where he was co-designer of MCIW's SIP-based IP communications infrastructure; responsible for driving vendor development of SIP business telephones; and created and maintained a PC SIP user agent for use in interoperability testing and SIP/RTP protocol research. Prior to MCIW, Mr. Sparks was part of the Admin Foundation Team at Lucent Technologies, Netcare Messaging Services, where he performed design and development of the next generation of NMS’s core business tool (an automated voice-mail system and subscriber management system). Mr. Sparks is an active contributor to many IETF working groups. About Xten® Xten is a developer of award-winning, high-quality, carrier-grade SIP-based Voice and Video over IP software and softphones for service providers, cable operators, internet telephony service providers and OEMs. Through its deployments with leading service providers, Xten has more than 400,000 IP endpoints deployed worldwide. For more information please visit www.xten.com. You may also visit Xten COO, Erik Lagerway’s blog at www.sipthat.com. For more information, please contact: Xten Networks, Inc. Mark Bruk, CEO +1.408.876.4344 [email protected]