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Asterisk project preview
Developer ToolsAlternative to TwilioAlternative to AvayaAlternative to Cisco Unified Communications

Asterisk

The world’s most popular open-source communications engine and PBX framework.

View on GitHub Visit website
LicenseGPL-2.0
GitHub stars3.8k
Last commit1 weeks ago
Tags6 topics
SipVoipPbxCommunicationsCTelephony
Overview

Why consider Asterisk?

Asterisk is an open-source framework for building communications applications. It converts standard computers into communications servers, powering IP PBX systems, VoIP gateways, and conference bridges.

Guided learning

Learn Asterisk by building

Practical setup notes, real use cases, and copy-ready examples in one focused guide.

1 min read 2 sections
In this guide2 sections

Overview of Asterisk

Asterisk is the foundational engine of modern VoIP. It handles SIP trunking, voicemail, interactive voice response (IVR), call queuing, conference calling, and interconnects traditional PSTN networks with IP telephony.

Quickstart with Docker

bash
1docker run -d \
2 --name asterisk \
3 --net=host \
4 andrius/asterisk:latest

Access the Asterisk CLI:

bash
1docker exec -it asterisk rasterisk

Asterisk is distributed under the GNU General Public License v2.0 (GPL-2.0).

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Asterisk FAQs

Asterisk is listed as a Developer Tools tool on TiloBox. Review the overview, features, and official documentation on this page to decide whether it solves your specific workflow.

Start with the project's GitHub repository and official website for supported installation and deployment instructions. Test the setup with representative data or a small project before rolling it out more widely.

Asterisk is listed under the GPL-2.0 license. Read the complete license text and the project's notices before using, modifying, or distributing the software.

Production readiness depends on your requirements. Review maintenance activity, security practices, documentation, backup and upgrade procedures, and compatibility with your stack; then validate it in a non-production environment.

Asterisk is listed as an alternative to Twilio. Compare the core workflow, deployment model, integrations, and licensing against your must-have requirements before switching.