Extensions & ring groups
Give everyone an extension. Ring a whole team at once, set office hours, and route calls the way your business works.
Self-hosted phone system
Your calls.
Your server.
Linx is an open-source phone system for homes and small businesses — extensions, voicemail, presence and a web phone, running on a server you own. No subscription, no one else holding your calls.
curl -fsSL https://raw.githubusercontent.com/linxpbx/linx/master/install.sh | sudo shOne command on a Linux server. It picks the right build for your machine, checks it, and starts the setup.
Everything a small office needs
A complete phone system, without the cloud bill
Voicemail & call history
Voicemail that reaches people wherever they are, a shared call history, and a message-waiting light on desk phones.
Video meetings & guest links
Meetings with a link anyone can join from a browser — no account, no app to install. One-to-one video calls between the iPhone and iPad apps work today.
Presence & team
See who is available, on a call, away or on do-not-disturb, live in the web app.
Web, iPhone & iPad
A web client that works in any modern browser today. The native iPhone and iPad app, which rings even when asleep, is coming to the App Store.
Phone lines & numbers
Bring your own phone-line provider, number your extensions your way, and keep toll fraud out by design.
Built to be small
Runs on a tiny server, works on poor links
Linx is measured to stay lean — processor, memory, disk and bandwidth kept to a minimum, idle and under load. It works behind home routers and strict networks, over a single port, with encrypted audio and video that scales down to survive slow connections.
- 1 core and 1–2 GB of memory is enough
- Works behind NAT, and on networks that only allow 443
- Encrypted calls and video; nothing sent in the clear
- You hold the keys — your data stays on your server
Install in one line
curl -fsSL https://raw.githubusercontent.com/linxpbx/linx/master/install.sh | sudo shThen open the one link it prints and finish in your browser. Full walkthrough in the install guide.
Ready to run your own phone system?
Free and open source. Set it up in about ten minutes.