Asterisk is committed to supporting the open source community by making it easy for you to find interoperability partners, third-party apps, IP phones, and more to extend the power of any Asterisk open source configuration. This Digium software resource center makes it easy to find popular add-ons for Asterisk, such as Skype for Asterisk (SFA), Fax for Asterisk and a wide variety of SIP IP phones.
The world's most popular voice communications engine. Asterisk turns computers into communication servers.
Learn more
Asterisk Commercial LicensingDigium offers commercial license for Asterisk to OEMs and solution providers.
Learn more
Get started quickly with the AsteriskNOW ready-to-run distribution. Installs Linux, Asterisk and optionally an administrative user interface.
Learn more
A professional grade SIP soft-phone built specifically to work with Asterisk. Voice and video calling, IM, presence and more.
Learn more
Match your IVR menu, automated attendant or custom app to the system prompts with professional recordings from Allison Smith, the voice of Asterisk.
Learn more
Add multi-channel, commercial-grade fax support to Asterisk. Includes both analog and T.38 fax-over-IP support. 1 port free.
Learn more
Cut bandwidth consumption. G.729 uses 1/8 of the bandwidth of standard uLaw/aLaw audio.
Learn more
High Performance Echo CancellationCarrier-class echo cancellation for Asterisk systems.
Learn more
LumenVox Speech EngineAdd enterprise-class speech recognition to Asterisk applications.
Learn more
Cepstral Text-to-SpeechSpeech synthesis module that matches the default Asterisk voice (Allison Smith).
Learn more