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Asterisk is a free and open source framework for building communications applications and is sponsored by Sangoma.
11500000
Downloads Annually
Downloads Annually
85000
Community Members
Community Members
150
Countries with Installations
Countries with Installations
11500000
Servers Worldwide
Servers Worldwide
85000
New Endpoints Each Year
New Endpoints Each Year
AstriCon
2026 recordings now available!
AstriCon is the longest-running open source convention celebrating open source projects featuring Asterisk and FreePBX. Consisting of multiple tracks and sessions, AstriCon offers various levels of education sessions and provides attendees networking opportunities with some of the best in the open source community.
Asterisk News
Asterisk Security Release 23.4.1
June 25, 2026
Asterisk Security Release 22.10.1
June 25, 2026
Asterisk Security Release 21.12.3
June 25, 2026
Asterisk Security Release 20.20.1
June 25, 2026
Certified Asterisk Security Release certified-22.8-cert3
June 25, 2026
Security Advisories
ast_loggrabber executes python script in world writable directory(`/tmp`) leading to potential privilege escalation And RCE: (GHSA-xgj6-2gc5-5x9c)
June 25, 2026
LDAP Filter Injection in res_config_ldap via SIP Username (Unauthenticated Information Disclosure): (GHSA-r6c2-hwc2-j4mp)
June 25, 2026
SQL Injection in cel_pgsql and cel_tds via CELGenUserEvent eventtype Field: (GHSA-ph27-3m5q-mj5m)
June 25, 2026