Tools / product

Asterisk

The official Asterisk PBX engine, distributed under GPL-2.0 (alternative licenses are negotiated separately with Sangoma). The engine FreePBX configures — not a Google Voice seat.

URL: https://www.asterisk.org
GitHub: https://github.com/asterisk/asterisk
Collection: Infrastructure & Security
Language: C
License: GNU General Public License v2.0
Stars: 3,645
Open source: Yes

voip pbx telephony self-hosted open-source

Used in stacks

FreePBX / Asterisk

Ranked on

Best open-source VoIP phone systems