If you were somehow able to remove IncallUI, your phone calls would become incredibly difficult to manage. You wouldn't be able to hang up, switch to speaker, or dial numbers during a call. It is a core utility, much like the "Settings" app itself.
There is a common misconception that "IncallUI" is spyware. This usually stems from two things: what is android incallui
Because it is a system app, it is usually impossible to uninstall without "rooting" your phone (which voids warranties and poses security risks). If you were somehow able to remove IncallUI,
While Incallui offers a unique set of features and benefits, users may wonder how it compares to other calling and messaging features, such as: switch to speaker