# asterisk/asterisk

The official Asterisk Project repository.

Repository: https://github.com/asterisk/asterisk
Canonical: https://ross.abutalabs.com/products/asterisk
Homepage: https://www.asterisk.org
Language: C
License: NOASSERTION
License Family: other
Topics: asterisk, pbx, c, sip, voip
Last push: 2026-08-26T13:07:12+00:00

## Health v2 (maintenance only)
Score: 94/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 99, release rhythm 84, longevity 100
- inputs: {"age_days": 4162, "days_push": 7, "days_rel": 26, "gap_med": 0, "n_releases_24m": 88}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3488, forks 1298 (observed 2026-08-28T04:08:07.125715+00:00)

## What it is
Asterisk is an open source PBX and telephony toolkit that acts as middleware between internet/telephony channels and communications applications. It supports VoIP/SIP as well as traditional PSTN and analog telephony interfaces.

## Use cases
- run a self-hosted PBX for my office phone system
- build a SIP/VoIP server for making and receiving calls
- set up an IVR with call routing and voicemail
- bridge SIP calls to traditional PSTN or analog phone lines
- build custom communications applications on a telephony framework
- replace a proprietary phone system with open source

## When to choose
- you need a mature, battle-tested open source PBX with SIP and PSTN support
- you want a programmable telephony toolkit with a large module ecosystem
- you need to interface with Sangoma or other telephony hardware cards

## When to avoid
- you only need simple WebRTC video conferencing rather than telephony
- you want a managed cloud phone service with no server administration
- you need a lightweight embedded VoIP client rather than a full PBX server

## Facets
- artifact type: application
- maturity: stable
- function: middleware, networking, sdk, plugin-system, developer-tools
- domain: networking, self-hosted
- platform: bsd, c
- tags: pbx, sip, voip, telephony, asterisk, psti, call-routing, ivr, communication, linux, macos

## Member repositories
- asterisk/asterisk (main) score 94

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:07.125715+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:36:06.278450+00:00, confidence not recorded.
  - readme: https://github.com/asterisk/asterisk (fetched 2026-08-28T04:08:07.125715+00:00, sha 4b2bf654b0cc)
  - homepage: https://www.asterisk.org (fetched 2026-08-29T09:30:08.866458+00:00, sha f699d8a5c852)
- Data as of 2026-08-30T08:39:29.467469+00:00.