Ingate® and Mediatrix Complete Interoperability Testing

SIP-Enabling End-to-End Solution Resolves Firewall Traversal Issues for Enterprises Migrating Their Legacy System to an IP Telephony Network

STOCKHOLM and MONTREAL, February 23, 2004- Ingate Systems AB (www.ingate.com), the leading supplier of Session Initiation Protocol (SIP)-capable enterprise firewalls, and Mediatrix Telecom Inc., a leader in Voice over IP (VoIP) access technology, today announced that the two companies have completed interoperability testing with Mediatrix's award-winning 1000 Series analog access devices and gateways, and Ingate Firewall® and Ingate SIParator® products.

The Mediatrix access devices and gateways are used to connect end-user telephony equipment, including analog phones and faxes, PBX and Key Systems, to the operators' IP-enabled network. Ingate's Firewalls and SIParator products allow the enterprise to quickly add support for realtime communications based on SIP, the standard protocol for VoIP, instant messaging, presence and a host of person-to-person applications.

Companies investing in VoIP networks need to address the conversion of their analog communications equipment to IP communications devices and the traversal of VoIP signaling and media streams through their firewall. Together, Ingate Firewalls and Mediatrix access devices and gateways have been proven in interoperability testing to reduce the risk and timeframe associated with deploying a VoIP solution. Consequently, customers looking to leverage their investment in legacy CPE benefit from the confidence of selecting a fully tested, end-to-end solution.

"The completion of interoperability testing between Mediatrix' and Ingate's products represents a milestone for companies that want to leverage VoIP, IM and other SIP-based applications. Our goal at Ingate is to deliver innovative, superior-quality products that bring SIP to every enterprise, on any budget. This interoperability testing pushes that mission forward, by offering customers a truly complete end-to-end solution," said Olle Westerberg, Chief Executive Officer, Ingate Systems.

Ingate produces and sells the world's first SIP-capable enterprise firewalls. The SIParator, a device that connects to an existing network firewall to seamlessly enable the traversal of SIP communications, earned Internet Telephony magazine's Product of the Year Award in 2002 and again in 2003.

"Interoperability testing is a core part of our culture at Mediatrix," stated Marc Shapiro, VP marketing, Mediatrix. "The work we have done with Ingate demonstrates our commitment to providing enterprise customers with field-proven VoIP solutions that minimize investment and maximize their return."

Mediatrix access devices and gateways are standards based and designed to meet carrier-grade requirements. The products are feature-rich with security and QoS capabilities and interoperate with H.323, SIP, MGCP and NCS protocols. In addition, units can be remotely configured and managed by Mediatrix' Unit Manager Network - a unique SNMP-based element manager.

About Mediatrix Telecom, Inc.

Mediatrix develops and markets advanced VoIP access devices, gateways, routers and value-added software enhancements for the enterprise, SOHO, and residential markets. Its products provide an ideal migration path for end users wishing to protect their current CPE investment (analog/digital phones, fax machines, PBX and Key Systems) while migrating to a converged IP network. Mediatrix products and solutions are widely interoperable and have received commercial endorsement from some of the world's leading manufacturers of telecommunications equipment. Mediatrix is a wholly owned entity of Media5 Corporation, a high technology holding company based in Sherbrooke, Quebec, Canada. Media5 Corporation also owns M5T, a software provider focused on delivering the latest in SIP software technologies to companies developing applications for real-time multimedia communications over IP. Mediatrix has corporate offices in Montreal, Canada and regional offices located in the United States and Europe. For more information please visit www.mediatrix.com.

About Ingate® Systems

A world leader in next generation firewall technology, Ingate® Systems produces and sells the world's first SIP-capable enterprise firewalls and the Ingate SIParator®, a device that connects to an existing network firewall to seamlessly enable the traversal of SIP communications and winner of Internet Telephony magazine's Product of the Year Award in 2002 and again in 2003. Ingate Systems has a long history of developing secure communications technology and today offers enterprises unprecedented value and ability to develop SIP-based, person-to-person real-time communications. Ingate's security products currently protect the networks of retail companies, financial institutions, industrial firms, government agencies and small-to-large enterprises throughout Europe, Asia and North America. Majority-owned by Intertex Data AB and BellNet Corp, Ingate Systems AB is located in Stockholm and Linköping, Sweden. Its wholly-owned subsidiary, Ingate Systems Inc., is located in Hollis, New Hampshire. For more information on Ingate Systems, visit www.ingate.com.

This press release may contain forward-looking statements that are subject to risks and uncertainties. Factors that could cause actual results to differ materially from these forward-looking statements include, but are not limited to, general business conditions in the industry, changes in demand for products, the timing and cancellation of orders and other risks.

For more information, please contact:

Johan Terve, Marketing Director, Ingate Systems
+46 70 202 53 00
johan@ingate.com

Hillary Call, Public Relations Manager, Ingate Systems
(917) 414-9262
hillary@ingate.com

Dan Pirro, Mediatrix Telecom
(514) 285-0058 ext. 412
dpirro@mediatrix.com