What is Wi-Fi Calling
After the arrival of 4G technology, we can make HD calls over the internet which is Vo-LTE. But, there are still multiple problems with mobile networks one of them being the network strength, and if you live in a remote location or a rural area then the chances are high that you will face network issues. Weak network strength results in frequent disconnection of calls, voice disturbance, etc. With your OPPO phone, you can easily overcome this problem with Wi-Fi Calling. Wi-Fi Calling allows users to make HD voice calls even in low or bad connectivity areas when connected to a Wi-Fi network. Wi-Fi calling is also known as VoWiFi(Voice over Wi-Fi). Follow the article below to learn more about Wi-Fi Calling.
Applicable to: OPPO devices with ColorOS 7 and above. Check your ColorOS version in [Settings] > [About Phone] / [About device].
Note: Feature availability may vary by device and ColorOS version.
What is Wi-Fi Calling
Wi-Fi Calling also termed VoWiFi is a voice calling service that lets you make or receive HD calls even if your phone has a weak signal. With Wi-Fi calling, you can enjoy clearer calls without paying extra to your existing plan.
Advantages of Wi-Fi Calling
You will still be able to make calls when carrier signal strength is poor.
Able to make calls when connected to any Wi-Fi Network
No additional charge is applied. You just need to have an active plan.
How to enable Wi-Fi Calling
Make sure your phone's Wi-Fi is enabled and you are connected to an active Wi-Fi network.
Go to [Settings] and tap [Dual SIM & Cellular]/ [Mobile Network].
Select the SIM and tap [Wi-Fi Calling].
Enable [Wi-Fi Calling]. Once enabled, you can also choose your calling preference between Wi-Fi Calling and Mobile Calling.
Note: Please note that some carriers don't support Wi-Fi Calling or are incompatible with your device. Please contact customer support for further help.
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*Pictures, settings, and paths might differ from those of your phone, but these won't affect the description in this article.