Incallui May 2026

Trying to overlay a Dialog on top of the system InCallUI. This never works reliably due to SYSTEM_ALERT_WINDOW restrictions and the fact that the system InCallUI has the highest priority ( TYPE_APPLICATION_OVERLAY is lower than TYPE_PHONE ).

But here’s the catch: For a long time, InCallUI was a tightly guarded, OEM-specific application. With the introduction of the Telecom framework and ConnectionService APIs, Google attempted to standardize it. Yet, the reality remains messy. incallui

Now, your Android tablet can show an InCallUI for a call active on your phone. This is implemented via a new InCallService extension that proxies touch events (mute, speaker) back to the phone over Bluetooth LE. Trying to overlay a Dialog on top of the system InCallUI