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Discover the Power of Asterisk

Build voice, video and text applications with Asterisk, the world's most widely-adopted open source communications tool kit.

Developers use Asterisk as a framework for creating innovative, custom products because it makes it easy to build almost any communications application you can imagine. It includes hundreds of pre-built components that handle the complex, low-level details of voice, video, and text communications. 

Asterisk powers many applications, including custom IP PBXs, automatic call distributors, conference bridges, voicemail, unified messaging, and more. Discover how Asterisk can power your next-generation communications deployment.

Create Custom Communications Solutions

The Asterisk open source communications engine powers connectivity solutions worldwide.

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Freely available to tweak and update under the terms of the GNU GPLv2 license.

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Tailor solutions to your needs, seamlessly connecting to VoIP and legacy infrastructure.

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Create powerful communications solutions capable of handling anything while staying efficient.

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By handling the low-level details of communications, developers can concentrate on building solutions.

Learn the basics and best practices of open source Asterisk

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Who Makes Asterisk?

The Asterisk project is sponsored and maintained by Sangoma, the steward of the Asterisk code base and owner of the Asterisk trademark. Proud of our open source heritage, Sangoma develops award-winning products and services designed for use with Asterisk, including hardware, phones, and cloud services, as well as plug-and-play business phone systems based on Asterisk.

Asterisk powers millions of communication and networking solutions worldwide, including carrier and service provider networks as well as phone systems for organizations of all sizes. Since its initial release, Asterisk has continued to be enhanced by a robust global community of users and developers. And, as a monument to its success, the Asterisk community celebrated the 25 millionth download of the Asterisk source code in 2019.

Discover why open source is the future of tech and telecom

Asterisk Software

Download Asterisk software and take advantage of popular add-ons, such as codecs, echo cancellation, the D-Series phone module for Asterisk, and more.

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Asterisk Training

Learn to install, configure, tune, and maintain a complete Asterisk system through online and instructor-led courses. Register for testing and earn the dCAP title to certify your status as an Asterisk professional.

Asterisk Hardware & Services

Sangoma offers IP phones, standalone appliances, VoIP gateways, and interface cards built exclusively for Asterisk as well as SIP trunking services powered by SIPStation.

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Asterisk Support

Get support for your Asterisk-based communications solution. You can choose from a range of support offerings to find the one that suits your needs.

Asterisk Experts

Need help building an Asterisk-based application, solution, or product? Sangoma’s team of Asterisk professionals is here to help!

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