What is com.samsung.android.app.telephonyui on Android?


What Is com.samsung.android.app.telephonyui App for Android Devices?

The package name com.samsung.android.app.telephonyui is an Android device app whose main work is to handle or manage the user interface parts of the Phone app – specifically the incoming call screen before you accept or reject a call.

What Functions Does This User Interface Have?

Below are the functions of TelephonyUI on Samsung devices:

  • Muting calls
  • Displaying caller ID
  • Placing a call on hold
  • Rejecting incoming calls
  • Accepting incoming calls
  • Sending messages straight from the call UI
  • Provides access to Notes app while making phone calls

What Is the Difference Between Com Samsung Android InCallUI and TelephonyUI?

Android InCallUI application and TelephonyUI are both system apps that involve calls and user interfaces and have package names that are quite similar. However, the In Call UI app is responsible for the in-call user interface on the screen when you are on a phone call. On the other hand, the responsibility of the TelephonyUI is to manage everything that comes after your phone rings but before picking up or rejecting the call on the Android operating system.

com samsung android app telephonyui

What Permission Do com.samsung.android.app.telephonyui Have?

There are several permission the com.samsung.android.app.telephonyui have such as:

  1. Contacts
  2. Call Log
  3. Camera
  4. Location
  5. Mobile data
  6. IMS Permission
  7. Wifi Media Storage

How to Fix Telephony UI Stopped Working Error? (6 Easy Ways)

Below are the 6 ways to Fix Telephony UI Stopped Working Error:

1. Restart Samsung Smartphone

Restarting the device is one of the finest ways to fix the issue. As a restart can help clear basic glitches and only takes a few minutes. So, make sure to restart your device and then check if the matter is resolved.

2. Update App from Galaxy Store

It is vital to mention that an outdated call app is another cause of issues or errors on your device. Therefore, you must update the app from the Galaxy Store and then check whether Telephony UI Stopped Working Error is fixed.

3. Rollback App Updates

In case the app is already updated to the latest version, then there is a chance that the issue or errors arise by some conflicts with the Android OS and the latest version of com.samsung.android.app.telephonyui app. So, the best fix to the issue is just make sure to uninstall the last Update of the app and then roll back to the previous version.

4: Update Android Operating System

It is always best to update your Android Operating System as this comes with security patches and other bug fixes and improvements. It may also help you update pre-installed or system applications such as TelephonyUI.

Sometimes, Updating Android Operating System can take care of various problems on your phone, like the TelephonyUI application crashing in the background or when you are about to start making calls. So, just go to the settings, click on About, and then click on Update to update the device to the latest version to fix the error.

android app telephonyui

5. Factory Reset the Phone

If the above ways did not work well, then just try factory resetting the phone. As it is a process that removes or deletes a;; data along with the settings on the device and then restore it to the default settings. So, before factory resetting the phone, take out your important data or anything valuable and do the backup.

samsung android app telephonyui

Frequently Asked Questions (FAQs)

Below are the FAQs about what is com.samsung.android.app.telephonyui on Android:

Q1: What is the use of Samsung Android app TelephonyUI?

Ans: The Samsung Android app TelephonyUI is used to manage telephony functions such as dialing numbers, connecting calls, and managing VoIP connections on Samsung devices.

Q2: Why would someone use Samsung Android dialer?

Ans: Samsung Android dialer is used to make phone calls. It provides a user-friendly interface for dialing numbers, managing contacts, and call history.

Q3: What is Samsung Android in call UI?

Ans: Samsung Android in-call UI, also known as InCallUI, is the user interface that appears when you make or receive phone calls.

Q4: What is IncallUI used for?

Ans: IncallUI is used to manage the user interface during a call. It displays the caller’s name, call duration, and buttons for mute, speaker, hold, and end call features.

Q5: Is com.samsung.android.app.telephonyui safe?

Ans: Yes, com.samsung.android.app.telephonyui is safe. It’s a system application developed by Samsung and comes pre-installed on Samsung devices.

Q6: What permissions does com.samsung.android.app.telephonyui require?

Ans: com.samsung.android.app.telephonyui requires permissions like accessing the phone’s call status, initiating a phone call without the Dialer UI, accessing the device’s network state, and reading and writing access to contacts.

Q7: What is the difference between com.samsung.android.incallui and com.samsung.android.app.telephonyui?

Ans: com.samsung.android.incallui provides the user interface during a call, while com.samsung.android.app.telephonyui manages telephony functions like dialing numbers and connecting calls.

Q8: How do I find hidden apps on Android?

Ans: You can find hidden apps by going to your phone’s Settings, tapping on Apps or Application Manager, then tapping on the three dots at the top right corner and selecting Show System Apps.

Q9: Can I remove com.samsung.android.app.telephonyui from my phone?

Ans: It is not advisable to remove this system app as it is necessary for the phone’s telephony functions.

Q10: How do I fix the ‘Telephony UI stopped working’ error?

Ans: To fix the ‘Telephony UI stopped working’ error just restart your device, clear the cache and data of the TelephonyUI app, or as a last resort, perform a factory reset after backing up your data.


Understanding Android system applications like com.samsung.android.app.telephonyui and com.samsung.android.incallui can help users make the most of their Samsung devices. While these apps operate silently in the background, they play a crucial role in ensuring smooth telecommunication functionality.