What Is com.samsung.android.incallui? Samsung Call Screen (2026)

Seeing com.samsung.android.incallui in App info, battery stats, or a permissions list on a Galaxy phone? That package is Samsung’s InCallUI — the system interface that draws the screen while you are on a voice or video call. It is not a random sideloaded app and not malware by default.

This page explains what InCallUI does, how it relates to telephony UI packages, what to do about a blank or frozen call screen, and which “optimizer” tips will break calling.

What InCallUI does

During an active call, Android separates “call signaling” from “what you see and tap.” On many Samsung builds:

• Telephony / modem layers keep the call alive
• Phone / dialer apps place and list calls
• InCallUI shows controls: end, mute, speaker, keypad, hold, Bluetooth audio, and related One UI call features

That is why you may see com.samsung.android.incallui wake during calls even if you never opened a settings toggle named “InCallUI.”

You will typically notice it when:

• Checking battery use after long call days
• Android asks about phone-related permissions after an update
• The call screen goes blank while audio still works
• A forum post lists the package name next to “suspicious system app”

Quiet use outside of calling is normal.

InCallUI vs telephonyui

People often confuse InCallUI with other Samsung phone packages. The closest sibling topic on this site is com.samsung.android.app.telephonyui — another legitimate part of the Galaxy calling stack. Different builds label screens slightly differently, but the rule is the same: system call UI packages are not “unknown APKs.”

Package role	Typical job	Safe default
InCallUI	On-call controls and call screen	Leave enabled
Telephony / Phone UI helpers	Dialer chrome, call-related UI services	Leave enabled
Third-party dialer	Optional replacement interface	Uninstall if it fights Samsung Phone

If you installed a “fancy dialer” or call-recorder APK that demands Accessibility and overlay permission, that third-party app is a better suspect for weird call screens than InCallUI itself.

Is it malware?

Check	Good sign	Bad sign
App location	System / preinstalled	Sideloaded unknown APK
Name	Exact com.samsung.android.incallui	Lookalike with extra characters
Uninstall	Not removable like a toy app	Ads promising “uninstall InCallUI virus”
Behavior	Appears around calls	Pop-ups when idle, browser hijacks
Publisher	Samsung Electronics / system	Random studio

Malware rarely needs to impersonate InCallUI to hurt you; it prefers overlays, Accessibility, and notification listeners. A correctly named Samsung system package on an unrooted Galaxy is expected.

Blank or frozen call screen

A common complaint: you hear the other person, but the screen is black, stuck, or missing buttons. Work the soft layer first.

Do

1. Try the power button to wake the display; rule out pocket proximity quirks
2. Force-restart a frozen phone after the call ends (or if the UI is hard-stuck)
3. Clear cache for InCallUI and Phone
4. Boot Safe mode and place a test call
5. Remove overlays: chat heads, filter apps, shady “call recorder” tools
6. Install pending One UI / Google Play system updates

Do not

• Freeze InCallUI in a package disabler
• Install a random “Phone.apk” from a file host
• Grant Accessibility to a cleaner that claims to “repair call UI”
• Jump straight to paid board repair for a software blank screen

If Safe mode works and normal mode fails, a third-party app is interfering. If both fail after updates and cache clears, you may be looking at a deeper Phone stack issue, display/touch fault, or bad flash — prep carefully with before sending a phone for repair rather than wiping accounts with no backup.

Permissions — why phone-related access?

InCallUI needs call-adjacent capabilities to show a useful control surface:

• Phone / call state — know when a call is active
• Microphone-related paths (as surfaced by your Android version) — mute and audio routing UI
• Bluetooth-related UI hooks — switch audio to headsets
• Display / overlay cooperation with the system — keep controls available during the call

Stripping those permissions often produces a blank or non-interactive call screen — the exact symptom people then blame on “the virus package.” Restore defaults before chasing malware theories.

Battery drain and One UI context

InCallUI should not top your battery chart on a day with no calls. If it does:

1. Check Recents / Phone for stuck “ongoing call” ghosts
2. Note whether drain aligns with long VoLTE / Wi‑Fi calling sessions
3. Reboot and watch another full day
4. Compare with broader Galaxy drain patterns in Samsung battery drain on One UI

Persistent drain with zero call activity usually means misattribution (Android battery graphs are blunt) or a stuck process — not a reason to delete the call UI.

After updates, repairs, or CSC changes

Messy One UI upgrades, unauthorized flashes, or screen repairs that disturb proximity/earpiece behavior can make call UI feel “broken” even when radio audio works. Before a shop visit:

• Back up contacts and call logs if your backup method includes them
• Remove screen locks / accounts only when the shop’s written policy requires it
• Document whether audio works while UI fails — that detail matters

Use the repair prep checklist so you do not hand over an unlocked phone full of banking apps. Soft symptoms still deserve soft triage first: force-restart, cache clear, Safe mode, then warranty or reputable service.

How to talk about it with support

Useful details:

• Exact Galaxy model and One UI / Android version
• Whether audio continues when the UI is blank
• Wired vs Bluetooth headphone behavior
• Any third-party dialer, recorder, or overlay app
• Screenshot of App info showing system status for com.samsung.android.incallui

That beats posting only the package name and asking “virus??”.

Related FixingHacks guides

• What is com.samsung.android.app.telephonyui
• Force-restart a frozen phone
• Before sending a phone for repair
• Samsung battery drain on One UI

Bottom line

com.samsung.android.incallui is Samsung’s in-call screen app. Leave it alone for normal use, clear cache and force-restart when the call UI blanks out, test Safe mode for overlay conflicts, and chase real battery hogs or bad third-party dialers before ripping out system Phone components.