Founded in 1999, Digium is the creator, sponsor, and innovative force behind Asterisk, the world's most popular open source telephony software.

Vision and Mission

Digium's vision is a world based upon open communications. Our mission is to transform the way businesses acquire and operate their communications systems through the application of open source software.

About Digium

Digium Inc., the Asterisk® Company, created, owns and is the innovative force behind Asterisk, the most widely used open source telephony software. Since its founding in 1999, Digium has become the open source alternative to proprietary communication providers, with offerings that cost as much as 80 percent less. Digium offers Asterisk software free to the open source community and offers Asterisk Business Edition and Switchvox IP PBX software to power a broad family of products for small, medium and large businesses. The company's product line includes a wide range of hardware and software to enable resellers and customers to implement turnkey VoIP systems or to design their own custom telephony solutions.

Used in combination with Digium's telephony interface cards, Asterisk offers a strategic, highly cost-effective approach to voice and data transport over IP, TDM, switched and Ethernet architectures. Digium's offerings include VoIP, conferencing, voicemail, legacy PBX, IVR, auto attendant, media servers and gateways, and application servers and gateways.

About Asterisk

Asterisk is the world's most popular open source telephony project. Under development since 1999, Asterisk is free, open source software that turns an ordinary computer into a feature-rich voice communications server. Asterisk makes it simple to create and deploy a wide range of telephony applications and services.

Code for Asterisk, originally written by Mark Spencer of Digium, Inc., has been contributed from open source software engineers around the world. Currently boasting over two million users, Asterisk supports a wide range of TDM protocols for the handling and transmission of voice over traditional telephony interfaces, featuring VoIP packet protocols such as SIP and IAX among others. It supports U.S. and European standard signaling types used in business phone systems, allowing it to bridge between next-generation voice-data integrated networks and existing infrastructure.

About Switchvox

Four Loop Technologies, DBA "Switchvox", was originally founded in 2003 to address a need for an exceptional software architecture and engineering firm. During our journey as a small business, we discovered that the technologies available for business phone systems were outrageously expensive and required a small army to set up and maintain them.

Switchvox is dedicated to providing quality PBX systems to small- to mid-sized businesses that are ready to take advantage of the latest advances in telephony that allowed for the development of our economical, feature rich, and easy to use solutions.

In September 2007 Digium acquired Switchvox.  Digium felt the need to offer a high-quality, easily configurable Graphical User Interface for its successful Asterisk Appliance.