Yes — free, up to 2 concurrent calls, with all core PBX features (extensions, ring groups, IVR, voicemail, recordings, reports). No trial timer, no credit card, no account required. It never phones home.
One simultaneous call — counting both outside calls and calls between your own extensions. If 6 calls are happening at the same moment, you're using 6 channels. Rule of thumb: 1 channel per 3–4 office staff.
Never. Create as many extensions and users as you like on any plan — you only pay for concurrent call capacity.
Your PBX keeps working. Licensing failures never interrupt calls: you get a 30-day offline grace period, and even a fully expired license simply falls back to Community limits. Emergency calls are always allowed, in every state, no exceptions.
Any provider offering standard SIP trunking — registration or IP-based auth. Guided setup templates for Twilio, Telnyx, Flowroute, Skyetel, VoIP.ms, Callcentric, Bandwidth, SignalWire and ClearlyIP are on the roadmap.
Any standard SIP phone or softphone works today. Zero-touch auto-provisioning is coming in waves: Yealink, Grandstream and Fanvil first, then Snom, Poly and Cisco (MPP).
That's exactly who we built this for. CSV extension import works today; dedicated 3CX and FreePBX importers are planned. Tell us about your setup — migration feedback shapes the tooling.
Completely. Self-hosted means your call records and recordings live on your server. Backups are downloadable archives you can take anywhere — leaving LinuxPBX must always be easy, that's the point of self-hosting.
Encrypted SIP credentials at rest, generated strong passwords, role-based access with hard tenant isolation (proven by automated tests), audit logging of every change, protected recording playback, and a built-in security audit page. Config deploys are validated and backed up before anything goes live.
Community Edition: community forum. Professional: support tickets with next-business-day response. Enterprise: SLA-backed support. Documentation and knowledge base are free for everyone.
LinuxPBX is proprietary commercial software built on proven open-source infrastructure. The installer and phone provisioning templates will be public repositories. We publish our security practices and our roadmap openly.