PT Compras Licenses Xten's eyeBeam SDK to Develop a VoIP Softphone for the PT Compras Broadband Phone Service

Portugal and Santa Clara, CA — June 20, 2005 —

PT Compras, short "About PT Compras" here, and Xten (OTCBB: XNWK), a provider of award-winning VoIP [Voice over IP], Video over IP, Instant Messaging, and Presence SIP softphones, today announced that PT Compras has entered into software licensing agreement with Xten. Under the terms of the agreement, PT Compras has licensed Xten's eyeBeam SDK to develop a softphone application for integration and deployment with the PT Compras Broadband Phone Service.

Xten's award-winning softphones are carrier-grade IP telephony SIP endpoints, delivering the quality of service and features that large providers require to serve their customer base. Xten's softphones are fully RFC3261 (SIP), RTP/RTCP (RFC 1889) and SDP (RFC 3264) compliant. They are available for Windows 2000, Windows XP, macOS and Pocket PC operating systems.

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.