Your own PBX.
Your phone. Your data.
OwnPBX is free, open-source software that turns a server you control into a complete phone system: calls, texts, voicemail, and push-to-talk. No carrier, no monthly bill, no tracking, no lock-in.
The app connects to a PBX server you run or administer. It is not a public phone service, and there is no signup in the app: if you are not authorized on a PBX, you cannot log in.
Not a service — a homelab project: this is a hobby-run homelab PBX, not a public service and not a business. We do not offer, sell, or provide telephone service of any kind: no push-to-talk, phone, SMS, MMS, internal or external calling, E911, or fax services. Nothing on this site is an offer to provide those services to you. What we share is open-source software — this website, the Android app, and the PBX server software — so you can run a phone system yourself, on your own server, for your own use. Everything you see here — the features, the screenshots, the descriptions — is a demonstration that the software works when you run it. It is not a service you can sign up for, and it is not for commercial business use.
Everything a phone system should do
Calls
Make and receive calls over your PBX, with encrypted audio, from any extension.
Texts
Send and receive SMS and MMS through your own numbers, in a single inbox.
Voicemail
Listen to voicemail, read transcriptions where available, and manage greetings.
Push-to-talk
Instant voice with the extensions you trust, walkie-talkie style.
Contacts & history
Contacts, call history, and call detail records, all in one app.
Recordings & faxes
Call recordings and fax sending and receiving, where your PBX provides them.
Open source, for real
OwnPBX is free software, released under the GNU General Public License (GPL-2.0-or-later). You can inspect the code, run it on your own hardware, change it, and share it. There is no vendor account holding your phone system hostage: your server, your numbers, your data.
Your server, your data
The app communicates only with the PBX server you sign into. Your calls, texts, voicemail, and contacts live on that server — not on a central OwnPBX cloud, because there isn't one. There are no ads, no tracking SDKs, no analytics, and no Google services in the app. Read the full details in the Privacy Policy, including your rights to request deletion of your account and a download of your data.
Your rights, in one line: you can ask your PBX administrator to delete your account and your data, or to send you a download of everything on your account — voicemails, SMS, MMS, messages, and call records — and the request must be completed within 90 days. Details: Privacy Policy — deletion and download.
Not affiliated with anyone
OwnPBX is an independent open-source project. It is not affiliated with, endorsed by, or sponsored by Google LLC, any mobile carrier, or any phone manufacturer. Google Play and Android are trademarks of Google LLC. This site, the app, and the PBX software are community work, not a product of those companies.