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Rick Segrest
Digium, Inc.
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rsegrest@digium.com

Janine Savarese
MRB Public Relations
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Digium and Alliance Systems Announce Partnership for Asterisk Business Edition

Alliance Systems to Build, Distribute and Support Solutions Based on Digium's Asterisk Business Edition and Digium Hardware

HUNTSVILLE, AL and PLANO, TX (September 20, 2005) — Digium® Inc., the creator of Asterisk® and pioneer of open source telephony, and Alliance Systems ("Alliance"), an original design manufacturer (ODM) of high reliability servers, announced today that they have entered into a distribution partnership. As a result of this agreement, Alliance will sell Digium's Asterisk Business Edition, a professional-grade version of its open-source PBX for the Linux operating system, as well as the company's expanding hardware product line.

Digium introduced the Asterisk Business Edition to provide enterprise users with a stable, tested PBX that will save them time and money, while providing warranty and support through Alliance's service department. Digium's Asterisk Business Edition provides reliability, performance, and interoperability with key hardware, software, and protocols.

"Alliance will enable larger enterprises to leverage high quality, high volume, customized VoIP solutions built around our Asterisk Business Edition software and Digium hardware," said Greg Vance, sales manager. "Now an even larger enterprise community can benefit from a cost-effective, flexible open source PBX solution that can handle critical enterprise business applications."

Alliance will provide full service and support for Digium's Asterisk Business Edition and telephony hardware. With their professional customer service and support staff, Alliance offers superior value-added services to their customers. Digium will leverage Alliance's network of remote sales offices across the United States to further penetrate the VoIP market.

"We believe that more and more companies are drawn to the open source solutions because of the convenience of a customized platform at lower-costs," said Rusty Cone, president of Alliance Systems. "Digium's products enable us to broaden our offerings for customers ready to embrace a reliable, scalable alternative to expensive proprietary PBX systems."

Digium also announced today that it will incorporate support for Intel Netstructure® and Intel Dialogic® modular hardware and software building blocks within its Asterisk Business Edition software platform. Now businesses can benefit from advanced features and functionality when using an Asterisk-based telephony system with Intel components. In addition to Asterisk Business Edition and Digium hardware, Alliance, an authorized Intel® distributor, carries Intel Dialogic Hardware.

Availability
The new solutions are available immediately from Alliance Systems or Alliance Systems' qualified resellers.

About Digium
Digium is the creator and primary developer of Asterisk, the industry's first Open Source PBX and Asterisk Business Edition, the professional-grade version of Asterisk. Used in combination with Digium's PCI telephony interface cards, Asterisk offers a strategic, highly cost-effective approach to voice and data transport over IP, TDM, switched and Ethernet architectures.

Digium solutions reduce the costs of traditional TDM and VoIP implementations through open source, standards-based software and innovative hardware solutions, including legacy PBX, IVR, auto attendant, and next generation gateways, media servers, and application servers. Digium hardware supports traditional voice and data protocols, and packet protocols such as IAX™ (Inter-Asterisk eXchange), and SIP VoIP.

Digium provides a highly refined selection of quality hardware and software products, developed and implemented using innovative engineering techniques (primarily open source development). A full range of professional services complement these product lines, including consulting, technical support, and customer software development services. The open source communications revolution is here, and Digium is leading the way.

About Asterisk
Code for Asterisk, originally written by Mark Spencer of Digium Inc., has been contributed from open source software engineers around the world. It supports a wide range of TDM protocols for the handling and transmission of voice over traditional telephony interfaces. It also supports US and European standard signaling types used in standard business phone systems, allowing it to bridge between next-generation voice-data integrated networks and existing infrastructure. Using the IAX Voice over IP protocol, Asterisk merges voice and data traffic seamlessly across disparate networks. Asterisk is available as open source under the GPL, and from Digium in the professional Asterisk Business Edition package, or under commercial license terms.

About Alliance Systems
Alliance Systems, based in Plano, Texas, designs, builds, ships, and supports Intel-based servers. These systems provide the infrastructure for Voice over IP, wireless, security, and other communications applications. Through its engineering, manufacturing, and value-added services, Alliance Systems helps customers optimize their businesses by enhancing profitability and reducing time to market. Today, Alliance focuses on delivering open standards-based servers to OEMs (original equipment manufacturers), ISVs (independent software vendors), and service providers throughout the world. Through strategic partnerships with Intel, Microsoft, IBM, Cisco, and HP, the company provides a full range of products and services that are specifically designed to meet today's mission-critical communications applications.

The Digium logo, Digium, Asterisk, Asterisk SCF, Switchvox, Asterisk Business Edition, AsteriskNOW, Asterisk Appliance and the Asterisk logo are trademarks of Digium, Inc. All other trademarks are property of their respective owners.

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