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Multi-Tech and Xten Demonstrate Interoperability between MultiVOIP Voice over IP Gateways and Xten SIP Softphones

Minneapolis, June 22, 2004 – Multi-Tech and Xten together have achieved SIP interoperability between MultiVOIP Voice over IP gateways and Xten’s family of SIP softphones. Xten provides a cost-effective, high-quality “software-only” IP phone that can talk to any MultiVOIP gateway. Together, the solution provides Voice over IP mobility allowing road warriors to capitalize on toll bypass voice connectivity.

“If you want to make calls via the Internet, and you are mobile, the best way to do that is with one of our softphones on your laptop,” explains Erik Lagerway, President and Chief Operating Officer of Xten. “With Xten softphones and Multi-Tech MultiVOIP Gateways, deploying SIP-based VoIP networks for SMEs and SOHO businesses is a no-brainer.”

Attaching MultiVOIP to an IP-based PBX creates an interconnect to the PSTN that allows mobile users to use the Xten Softphone to make toll-free telephone calls from anywhere in the world into their corporate office, or use their IP PBX to make calls out of their local exchange. Conversely, callers can come from a local exchange into the PBX and out to the Xten software via the MultiVOIP gateway.

“SIP is gaining a lot of momentum in the industry,” explains Chip Harleman, Vice President of Sales and Marketing for Multi-Tech Systems. “Our alliance with Xten opens the door for SIP-based, mobile, Voice over IP applications. In fact, we advocate multi-vendor SIP implementations. We believe that interoperability benefits the entire industry and ultimately our mutual customers.”

The MultiVOIP family is available in analog and digital models ranging from one to 60 ports. MultiVOIP gateways connect directly to phones, fax machines, key systems, PSTN lines or a PBX to provide real-time, toll-quality voice connections to any office on a VOIP network. It is designed to help maximize investments already made in the existing data and voice network infrastructure and is SIP (RFC 3261) compliant.

Xten’s X-PRO softphones are business-grade IP Telephony solutions, delivering the quality of service and features found in business-class telephones including conferencing and multi-proxy. Xten also has a feature-rich FREE softphone dubbed X-Lite which does not include some of X-PRO’s premimum features but still provides the same level of call quality. Xten’s softphones are fully RFC3261 (SIP), RTP/RTCP (RFC 1889) and SDP (RFC 3264) compliant. They are available for Windows (Windows 98SE/ME/NT 4/2000/XP/CE), Mac OS X and LindowsOS operating systems.

About Multi-Tech

An ISO 9001:2000 certified global manufacturer of award-winning Internet, remote access, and telephony products, Multi-Tech Systems provides end-to-end solutions for small to medium-sized businesses. Multi-Tech’s products are available through a worldwide network of business partners (distributors, resellers, system integrators, ISPs, and ISVs), or in embedded solutions from OEMs.

Privately held, Multi-Tech Systems has over 61 U.S. patents and numerous international patents. The company’s intellectual property portfolio includes patents covering transmission of multiplexed voice, data and video packets used in technologies such as Internet telephony, PC telephony, voice over IP or frame relay, and DSVD modems. For additional information, contact Multi-Tech at 800/328-9717 or 763/785-3500, via fax at 763/785-9874 or browse the company’s World Wide Web home page at

About Xten® Networks, Inc.

Xten is a provider of award-winning, high-quality, carrier-grade SIP-based VoIP software and softphones. Xten’s goal is to be the primary choice in SIP-based client-side audio and video IP communications software for Telecoms, Cable Providers and Internet Telephony Service Providers and OEMs. Those who are interested in Xten products should visit On the Web:

For more information, please contact:

Multi-Tech Systems, Inc.
Paul Kraska

Xten Networks, Inc.
Mark Bruk, CEO

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