Asterisk
Open-source framework for building telephony systems
Asterisk is a widely used open-source PBX and telephony toolkit that powers IP PBX systems, VoIP gateways, and conferencing servers. It supports SIP, voicemail, IVR, and call queues.
Key features
- Full-featured IP PBX
- IVR and call queues
- Voicemail and conferencing
- SIP and PSTN connectivity
Strengths
- Released under the GPL-2.0 license
- First-class Docker support for quick deployment
- Active community (3.4k GitHub stars)
- Written in C
Asterisk replaces
Compare Asterisk
25 head-to-head comparisons.
- Asterisk vs Chatwoot
- Asterisk vs SimpleX Chat
- Asterisk vs Etherpad
- Asterisk vs Centrifugo
- Asterisk vs Screego
- Asterisk vs Typebot
- Asterisk vs Berty
- Asterisk vs Mumble
- Asterisk vs The Lounge
- Asterisk vs Papercups
- Asterisk vs Zammad
- Asterisk vs WorkAdventure
- Asterisk vs Soketi
- Asterisk vs Remark42
- Asterisk vs Isso
- Asterisk vs FreeSWITCH
- Asterisk vs qTox
- Asterisk vs MiroTalk
- Asterisk vs Ferdium
- Asterisk vs FreeScout
- Asterisk vs Telegram Bot API Server
- Asterisk vs Rustpad
- Asterisk vs WeeChat
- Asterisk vs Ergo
- Asterisk vs irssi
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