In technical terms, "InCallUI" stands for . While the Dialer (com.samsung.android.dialer) handles the keypad and your contact list, InCallUI takes over the moment a call is initiated or received. Its primary functions include:

: The activity is logged when the interface closes after the call finishes.

Open with SQLite browser to reconstruct call timelines, even if the user deleted the system call log.

When you see "com.samsung.android.incallui" in your Google Activity or a system log, it simply means the phone's calling interface was active. Its primary functions include: