Build Voice, Video and Text Applications Easily With Asterisk, The World's Most Widely Adopted Open Source Communications Software Development Framework. Asterisk is an open source framework for developing state-of-the-art communications applications. Asterisk includes hundreds of pre-built components that handle the complex, low-level details of voice, video, and text communications.
Developers use Asterisk to create custom communications solutions and to build innovative communications products. Discover how Asterisk can power your next-generation communications deployment.