Nov 20, 2025 · Ready to Get Started with Asterisk? Asterisk is a free and open source framework for building communications applications and is sponsored by Sangoma.

The Asterisk Documentation site is the official source of documentation for the Asterisk project. Get access to detailed version updates to the project, including Asterisk 22.

Nov 20, 2025 · From version 17 onward, FreePBX can be installed on Linux Debian systems, and includes Asterisk and all the tools you need to build your custom PBX. Start your FreePBX …

The official source of documentation for the Asterisk project is maintained by the development team that manages the Asterisk code base. The development team is committed to keeping …

Asterisk offers the advanced features that are often associated with large, high end (and high cost) proprietary PBXs. The list below includes a sample of the features available in Asterisk.

Software add-ons for Asterisk are available from Sangoma and through other vendors. You’ll find popular add-ons and third-party apps that extend the power of any Asterisk open source …

Refer to this website and the Asterisk Community Forums for the most accurate and up to date details on the specific version of Asterisk you are using. Please note that it is always possible …

Learn the basics of Asterisk development, along with best practices and guidelines for coding, and get access to project resources for both the new and experienced Asterisk developer.

Sangoma offers turnkey IP PBX phone systems based on the Asterisk engine, which are administered through an easy-to-use graphical user interface (GUI), rather than raw …

More information about the various versions of Asterisk is available on the Asterisk Versions wiki page. A complete listing of download options can be found on the Downloads Server.