Digium is a company that specializes in developing and providing communication software and hardware solutions. Founded in 1999, the company is best known for creating the open-source software platform, Asterisk, which is widely used for building customized communication systems. In addition to Asterisk, Digium also offers other products such as VoIP gateways, IP phones, and telephony cards. The company was acquired by Sangoma Technologies in 2018 but continues to operate under the Digium brand.