Asterisk. Digium's open source communications engine powers voice and video communication solutions worldwide. Discover the power of Asterisk, let us help you choose the right Asterisk solution.
Freedom. Asterisk is freely available under the terms of the GNU GPLv2 license.
Flexibility. Asterisk seamlessly connects with VoIP and legacy communication systems.
Power. Asterisk helps developers quickly and easily create powerful unified communications solutions.
Focus. Asterisk handles the low-level details of real-time communications, allowing developers to concentrate on business logic.
Say Hello to Asterisk
View the full-length video and get an introduction to Asterisk.
See what Asterisk can do for you
Need high-quality analog or digital interface cards to enable your telephony applications? Select from the best hardware to connect legacy PBX, IVR, VoIP Gateway, or custom telephony solutions.