How to Log Out of the 3CX Desktop App (Windows and Mac)

Need to sign out of 3CX on a shared computer, switch to a different extension, or hand a PC to a new staff member? Here is exactly how to log out of the 3CX desktop app on Windows and Mac, plus the web client – and what to do if the app keeps signing you back in.

Log out of the 3CX Windows/Mac desktop app

1. Open the 3CX desktop app.
2. Click your avatar / profile picture in the top-right corner of the app.
3. Choose Sign out (labelled Logout on some versions).
4. The app returns to the login screen. Your extension is now signed out on this computer, and calls will no longer ring here.

On older versions of the desktop app the option lives under the Settings (gear) menu > Sign out instead – if you cannot see it under your avatar, check there.

Log out of the 3CX web client

If you use 3CX in a browser rather than the installed app:

1. Click your avatar in the top-right of the 3CX web client.
2. Select Sign out.
3. If the web client was installed as a PWA (its own window with an app icon), signing out works the same way – the PWA is just the web client in a wrapper.

Log out of the 3CX mobile apps

On iOS and Android, open the 3CX app, tap your avatar or the menu, and choose Sign out. To stop calls ringing on your mobile without fully signing out, you can instead set your status to Do Not Disturb or disable push notifications for the app – handy after hours. Full steps are in our 3CX general user guide.

3CX keeps signing me back in – how do I remove the account?

Signing out ends your session, but the provisioned account can remain on the device. To remove it completely (for example, before reassigning a PC):

1. Sign out as above.
2. On the login screen, remove or forget the saved account/QR provisioning entry, or uninstall and reinstall the app for a completely clean state.
3. For a departing employee, the cleanest fix is at the server: your 3CX administrator can re-provision or disable the extension, which immediately disconnects every logged-in device. If Tronic hosts your system, contact us and we will do this for you.

Signed out but still getting calls?

Remember that your extension may be active on several devices at once – desk phone, desktop app, web client and mobile. Signing out of one does not sign out the others. If calls still ring somewhere unexpected, check each device, or ask your administrator to check registered endpoints for your extension. More fixes in our guide to troubleshooting the 3CX apps, and the full manual set lives in our 3CX user guides and manuals library.

Frequently asked questions

Does signing out of 3CX turn off my voicemail?

No. Voicemail lives on the server, not your device. Callers can still leave messages; you just will not get app notifications until you sign back in.

Will I miss calls if I log out?

Calls will follow your extension’s call routing rules – typically ringing your other registered devices or diverting to voicemail. Ask your admin to adjust routing if you are stepping away long-term.

Ready to see 3CX in action?

Tronic is an Australian 3CX partner. We host, licence, configure and support 3CX powered by Tronic Cloud for businesses across the country, and we can even add a 24/7 AI receptionist on top. Get in touch for a plan enquiry or call us on (03) 9970 5220.