Digium is a subsidiary of Sangoma Technologies, who together is the largest supplier of open source communications solutions. Digium remains the sponsor and maintainer of the Asterisk project, with its open source code available for free. The developer community that uses and continually enhances Asterisk now includes some of the brightest minds from 170 countries, with close to two million servers running Asterisk. Digium has continued to build and offer ancillary products and services to extend the power of Asterisk, including telephony cards, IP phones, and SIP trunking services.
Asterisk is also used as the foundation of Switchvox, Digium's out-of-the-box VoIP phone system available on-premises or as a cloud-based solution. Switchvox offers enterprise-caliber Unified Communications (UC) features at an all-inclusive price, making it ideal for all types of small and mid-size companies, schools and universities, and government and non-profit organizations.