February 5, 2024

What is “com.sec.unifiedwfc”? Usage & Troubleshoots?


Staying connected is crucial in today’s world, whether personally or professionally. For Samsung users, making calls through WiFi comes built-in through a package called “com.sec.unifiedwfc”. This enables making calls over the internet whenever you connect to a WiFi network, offering more reliable connections and HD-quality audio.


However, some Samsung users face frustrating “com.sec.unifiedwfc has stopped” error popups which interrupt the WiFi calling feature. This usually points to an underlying software issue in the OS or connectivity problems rather than anything serious.




This comprehensive guide will clarify all your doubts surrounding com sec unifiedwfc. What does this package do? Is it a malware? Why does it crash unexpectedly and how to troubleshoot issues? You’ll find answers to all such questions here. We even suggest some alternative apps for WiFi calling on both Android and iOS devices to consider.

By the end, you’ll have complete clarity on how Samsung’s com.sec.unifiedwfc powers WiFi calling, proper diagnostics behind any error messages, and reliable ways to fix the problems either by tweaking device settings or switching to more stable VoIP apps. So plunge right in to boost your calling connectivity!

Com.sec.unifiedwfc is a built-in package on Samsung devices that enables WiFi calling functionality. It allows users to make and receive calls over a WiFi connection instead of the mobile network. Some users have reported getting a “com.sec.unifiedwfc has stopped” error message on their devices.

This article provides a comprehensive understanding of com.sec unifiedwfc, troubleshooting tips for the error message, and alternatives for WiFi calling on Samsung devices.

What is Com.sec.unifiedwfc?

Com.sec.unifiedwfc stands for Samsung Unified WiFi Calling. It is a pre-installed system application on Samsung devices running on Android 9.0 Pie and above. The app handles voice calls over WiFi networks to provide better call quality and coverage.

When your Samsung device connects to a stable WiFi network, com sec.unifiedwfc automatically switches voice calls to make use of the WiFi connection instead of mobile data. This allows for HD-quality calls in areas with poor cellular reception.

The “sec” in the package name stands for Samsung Electronics Corporation Limited. So com.sec.unifiedwfc is Samsung’s implementation of the WiFi Calling feature rolled out since the Android Pie update.

Is Com.sec.unifiedwfc a Malware?

No, com.sec.unifiedwfc is not malware. Being an official Samsung system app, it is completely safe to use the WiFi calling feature on your device. Some antivirus apps may flag it as suspicious due to the excessive permissions it requires to reroute calls over WiFi. But Samsung has created this app solely to improve calling functionality.

What Causes the “Com.sec.unifiedwfc has Stopped” Error?

Few users have reported getting a popup notification saying “com.sec.unifiedwfc has stopped” on their Samsung devices. There could be several reasons for this error:

  • Outdated firmware – An old firmware version with bugs can cause issues with com.sec.unifiedwfc functioning.
  • WiFi connectivity problems – Weak WiFi signals, and network outages can lead to disconnection of WiFi calls.
  • Outdated OS – Older Android versions may have compatibility issues running the latest app.
  • Corrupt cache – Accumulated cache from heavy usage can affect app performance.
  • Software conflicts – Other apps that modify device software can interfere with com.sec.unifiedwfc.

So in most cases, the “com.sec.unifiedwfc has stopped” popup indicates a software issue either with the app itself or device firmware rather than any malware activity.

How to Fix “Com.sec.unifiedwfc has Stopped” Error?

If you are facing constant error popups from com.sec.unifiedwfc on your Samsung phone, here are some handy troubleshooting tips:

  • 1. Update Device Software

Install the latest firmware and security patches on your device. Navigate to:

Settings app > Software update > Download and install.

This will fix any existing bugs and issues in the operating system.

  • 2. Clear App Cache and Data

Wipe out the app cache and app data for com.sec.unifiedwfc. This will clear out any corrupt files or crash logs causing problems:

Settings > Apps > com.sec.unifiedwfc > Storage > Clear cache & Clear data

After clearing data, you may need to reboot your device for changes to apply.

  • 3. Check WiFi Connection Strength

Make sure your WiFi router signal strength is strong in the location where you are trying to make WiFi calls.

A minimum of 2-3 signal strength bars is recommended for VoIP calls. If the WiFi is weak, switch to a closer router or troubleshoot your internet connection.

  • 4. Factory Reset the Device

If none of the above steps work, consider factory resetting your Samsung device to clear out any system-wide corruptions:

Back up your data > Settings > General management > Reset > Factory data reset

This should wipe and restore everything on your device to a clean state.

  • 5. Uninstall Updates from the Play Store

Some users facing persistent com.sec.unifiedwfc crashes mention that installing app updates from Galaxy Store/Play Store seems to cause problems.

You can try uninstalling any such updates and use the factory version of the app that came pre-loaded on your Samsung device.

Top Alternatives to Com.sec.unifiedwfc for WiFi Calling

If you are looking for alternative apps with WiFi calling support instead of relying on Samsung’s system app, here are some good options:

App Key Details
WhatsApp – Free messaging app with voice/video calling over WiFi- Encrypted end-to-end security
Facebook Messenger – Instant messaging app with free VoIP call support- Syncs across devices
Skype – Allows international WiFi calling- Call phones or other Skype users
Google Voice – Get a free phone number to call any number in US/Canada- Integrates call history & voicemail across devices
Viber Messenger – Free calls, and messages to other Viber users- Group video calls with up to 20 friends
Microsoft Teams – Business & office focused- Share screens, and files during VoIP meetings
Cisco Webex – Host webinars, virtual meetings & conferences-Avg 4-10k attendees in meetings
Zoom – Smooth video meetings with up to 100 participants- 40 min limit on free accounts
Apple FaceTime – Pre-installed on iPhone, iPad, and Mac- End-to-end encrypted calls

These apps provide reliable WiFi calling both on Android and iOS devices. Depending on your usage, you can choose the best suited app above that adheres to your security and functionality needs.

FAQs Related to Com.sec.unifiedwfc:

Here are some frequently asked questions about Samsung’s WiFi calling implementation:

  • Q1. Does WiFi call use mobile data?

No. WiFi calling completely bypasses your cellular plan data and mobile network. Voice calls are transmitted solely over the connected WiFi network.

  • Q2. Is WiFi calling free?

Yes, making calls over WiFi does not have any cost as it does not use cellular voice minutes. However, charges may apply for international calls depending on region and carrier policies.

  • Q3. What are the signal strength requirements for WiFi calling?

A stable WiFi network with 2-3 bars of signal strength is recommended for decent audio/video quality. If the WiFi drops below 2 bars, calls may disconnect or have disturbances.

  • Q4. Can I text over WiFi calling?

Yes, WiFi calling supports both voice calls and SMS messaging over a WiFi network just like a regular mobile network. Do note that call history and messages are still billed to your cellular plan.

  • Q5. Does WiFi call drain the battery faster?

WiFi calling consumes slightly more battery than mobile network calls because the phone has to simultaneously run WiFi/VoIP modules during the call. But the difference is usually minimal on modern devices.

  • Q6. What happens if I move out of the WiFi range during a call?

The call will automatically transfer from WiFi to the available cellular network if your device supports seamless handover. You get a brief notice when the handover takes place.

  • Q7. Do I need a separate VoWiFi plan to use WiFi calling?

No. Most major carriers have built-in support for WiFi calling and do not require any additional plans. Just check if the carrier supports WiFi Calling on your device model before activating the feature.

  • Q8. Can I make WiFi calls abroad?

Yes, if the WiFi router is connected to the internet you can dial international phone numbers over WiFi. Additional per-minute charges may apply. Enable airplane mode to avoid simultaneous cellular roaming costs.

  • Q9. How do I enable WiFi calling on Samsung mobiles?

On Galaxy devices – Phone app > Menu > Settings > Calls > Additional settings > Wi-Fi calling

  • Q10. Is WiFi calling secure?

Yes. By default, voice packets are encrypted using IPSec VPN while transmitting over WiFi. Enable WiFi security protocols like WPA2-PSK on your router for added protection against eavesdropping.

Also Check:


To summarize, com.sec.unifiedwfc is Samsung’s built-in system application that allows enjoying WiFi calling capabilities on supported devices. It offers more reliable calls over WiFi networks with HD-quality audio.

If you face app crashes or “com.sec.unifiedwfc has stopped” errors, updating device software, changing WiFi connection, etc can easily fix the issues in most cases. For advanced users, alternative VoIP apps like WhatsApp, and Skype provide equivalent functionalities as well.

I hope this detailed guide has helped you understand WiFi calling better and how to troubleshoot problems related to the com.sec.unifiedwfc package on Galaxy devices. Let me know if you have any other queries!

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