Intertex Certifies Xten Interoperability with World's First Broadband SIP Firewall

NASHUA, N.H., Oct. 8, 2003 (PRIMEZONE) -- Intertex Data AB today announced that the Xten Network' softphones X-PRO and X-Lite have passed extensive SIP (Session Initiation Protocol) interoperability tests with the Intertex IX66 Internet Gate firewalls and ADSL modems. The interoperability testing cements a partnership between two companies that have proven to be on the front edge of SIP related development -- Xten, the developer of the open standards based softphone X-PRO, and Intertex, the first company to offer a broadband firewall that enables SIP-based IP telephony.

In addition to their own internal testing, Xten and Intertex have passed the scrutiny of real life installations in both the SIPCall service (SIP to PSTN, PSTN to SIP service) in the U.K. and in the Free World Dialup community in the US. The Intertex-Xten partnership offers service providers and end-users ensured product interoperability between Xten's line of SIP-based softphones and Intertex's line of SIP-based broadband firewalls.

SIP has become the accepted and global standard for IP telephony. However, SIP signaling has been unable to traverse most current broadband firewalls and NATs. The Intertex IX66 Internet Gate, a product line of powerful broadband firewalls with optional ADSL modem, gives SIP communication on the LAN global reach over the Internet. . Thus, an Xten user on the LAN can communicate with any other SIP client connected to the Internet. Including a NAT-router, a packet filtering firewall with stateful inspection, and a SIP server, the IX66 is an all-in-one solution for the broadband office or home user. All SIP devices on a LAN behind the IX66 Internet Gate will function universally over the Internet. The SIP-support includes a built-in SIP proxy and SIP registrar dynamically controlling the firewall.

About Intertex Data AB

Intertex Data AB was founded in 1982 by current CEO Karl Erik Stahl. The company develops and markets communication and security products. Currently, the next generation broadband access products focusing on the SIP standard and person-to-person IP communication are being introduced. The products include featured ADSL modems and firewalls prepared for SIP-based IP Telephony, Presence, Instant Messaging and Video Conferencing. Intertex has won several International awards for creative product design as well as business excellence.

Intertex's media contact is Howard Kendall at phone +1 (603) 465-3961 and For further information, see Click Press Center for picture download.

About Xten Networks, Inc.

Xten Networks is a developer of SIP softphones with features and functionality of a small business phone system. Open standards-based design allows for maximum network interoperation and integration with SIP devices, gateways and VoIP networks. The intuitive phone-like design dramatically reduces end-user software training. Supported Operating Systems include: Windows 95/98/NT4/ME/2000/XP/CE and Mac OS X. Linux to be released in Q4 2003. X-PRO is available as a standalone product either co-branded or private labeled. X.NET is the SDK for X-PRO that allows for 3rd party development & integration. X.NET exposes the X-PRO software engine and its features to be accessed by most common programming languages with support for Windows, Mac and Linux.

Xten's media contact is Mark Bruk at phone +1 (604) 878-0440 and email For further information, see


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