The Asterisk(R) Open Source PBX by asterisk
The official Asterisk Project repository.
About The Asterisk(R) Open Source PBX
From the project's README at github.com/asterisk/asterisk. Lightly cleaned for readability; for the full source see the upstream repo.
It is imperative that you read and fully understand the contents of the security information document before you attempt to configure and run an Asterisk server.
See Important Security Considerations for more information. WHAT IS ASTERISK ?
Asterisk is an Open Source PBX and telephony toolkit. It is, in a sense, middleware between Internet and telephony channels on the bottom, and Internet and telephony applications at the top. However, Asterisk supports more telephony interfaces than just Internet telephony. Asterisk also has a vast amount of support for traditional PSTN telephony, as well.
For more information on the project itself, please visit the Asterisk Home Page and the official Asterisk Documentation. SUPPORTED OPERATING SYSTEMS Linux
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 3.2k | github.com/asterisk/asterisk |
| GitHub forks | 1.2k | github.com/asterisk/asterisk |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 11.1 years | since Apr 2015 |
| Last commit | 6 days ago | May 1, 2026 |
| Releases shipped | 215 | last: 6 days ago |
| Security policy | SECURITY.md | declared by maintainers |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
Security advisories
CVE-2026-23741. What people say on Hacker News
- Superscript Asterisk in Unicode
- "Privacy. That's iPhone." – and Other Things That Need an Asterisk
- Show HN: Ava – AI Voice Agent for Traditional Phone Systems(Python+Asterisk/ARI)
- Sudo-rs shows password asterisks by default – break with Unix tradition
- Show HN: Asterisk - A small text embedding model for low-resource hardware
Ready to self-host The Asterisk(R) Open Source PBX?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed May 7, 2026.
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