- Digium is the creator and owner of Asterisk, an open source software that turns standard computers into communications platforms like IP PBXs, IVRs, and call centers. - Founded in 1999, Digium has 130 employees and is based in Huntsville, AL and San Diego, CA. It commercially licenses and supports Asterisk. - Switchvox is Digium's award-winning IP PBX product that offers the power of Asterisk without the complexity, and includes unified communications features.