Android 14 kiosk mode: incoming call UI not showing for default phone appSolved

For Android devices in kiosk mode, the incoming call screen depends on more than just the Phone app package. The call overlay is tied to Android’s notification and status bar framework. If notifications or the status bar are completely restricted in the kiosk policy, Android may still ring in the background, but the incoming call UI will not be allowed to appear over the kiosk launcher.

The recommended configuration is:

1. Keep the default Phone app available in the kiosk policy or allow its related system components to run in the background.
2. Add the required dialer, call UI, and telephony-related system packages as Background Apps if they are not already available through the policy.
3. Keep notifications/status bar enabled in the Android kiosk peripheral settings.
4. Save and republish the policy to the device.

Also, if a system package was added manually using its bundle ID, it is normal for fields such as Latest Version to appear blank in the app inventory. That does not necessarily mean the package was added incorrectly.

That matches what I’m seeing. Once I enabled notifications/status bar, the phone started showing incoming calls correctly. The problem is that users can now pull down the notification panel, which we were trying to avoid in kiosk mode.

On Android, the notification/status bar framework is required for incoming call and message overlays to break through kiosk mode. If the notification panel is completely blocked, the device may not be able to display the incoming call UI. The practical workaround is to keep notifications enabled for call functionality, then use kiosk restrictions or lock task mode to limit what users can access from the status bar.

On many Android devices, users may still be able to view notifications, but access to sensitive areas such as Wi-Fi, mobile data, or Settings can be restricted depending on the device model and OS behavior. It is not currently possible to fully block the notification panel and still guarantee that incoming call UI overlays will appear on all Android devices.

I also noticed some management app notifications in the panel after enabling it. Can those be hidden without affecting calls?

Some notifications can be reduced by adjusting app permissions, but system-level and device-management notifications cannot always be hidden safely. For example:

• Location-related prompts can often be cleaned up by setting the relevant location permissions for the management app back to Default under Android > App Management > App Permissions.
• A periodic sync notification may be hidden by changing Android periodic sync behavior to Background, but this is not recommended because Android may delay or stop background sync when the device is locked, on battery saver, or under data saver conditions.
• Denying push notification permission for the management app is risky. On some Android models, it can suppress all device notifications, including incoming calls and messages.
• Android system overlays, lockdown messages, and core kiosk status notifications may remain visible because they are enforced by the OS or kiosk framework.

So the stable setup is to keep notifications/status bar enabled for calls, restrict access through kiosk/lock task controls where possible, and avoid blocking notification permissions that the device needs for call and message alerts.