You can manually enable Wifi calling on OnePlus 6T/6 devices. OnePlus 6T wifi calling feature is useful to make phone calls using a Wi-Fi connection instead of your mobile network. First of all setup WiFi calling OnePlus 6T to make a call over Wi-Fi. Not all carriers supported these Wi-Fi calling features. Sometimes it depends on carriers to activate such as Verizon Wireless, T-mobile, AT&T mobile, Sprint, Jio, Airtel, and more. If your carrier doesn’t support call over Wi-Fi, you can try voice over IP service.
When you’re phone connected to mobile data, you’ll see an Internet call or Wi-Fi calling option when trying to make a phone call. When you’re not connected to Wi-Fi, your calls use your cellular data if activate.
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How to Enable WiFi Calling on OnePlus 6T Oxygen OS
When turn on wifi calling OnePlus 6T, you can use it when available on your device.
Step 1: Swipe down the notification shade from the top of the screen and tap the Settings gear icon.
Step 2: Tap Wi-Fi and the internet.
Step 3: Tap SIM & network.
Here you can see SIM settings with SIM 1 and SIM 2.
Step 4: Tap SIM 1 or SIM 2.
You can see the OnePlus 6T Wifi calling option under the enhanced communications section. By default turned off wifi calling in your device.
Step 5: Turn on Wi-Fi calling toggle in your OnePlus 6T.
Now you’ll make a call over Wi-Fi in your OnePlus 6T Oxygen OS devices.
If you can’t find Wi-Fi calling on your OnePlus devices, try the below-given settings on your device that might be useful to get WiFi calling on your OnePlus devices.
Step 1: Open phone dialer.
Step 2: Dial *#800# and press the Enter.
Step 3: Press the Oneplus Log kit.
Step 4: Click on Function Switch.
Step 5: Check VoWiFi.
Now reboot your OnePlus device.
Step 6: Now, Go to Settings > Wi-Fi internet > SIM & network > SIM 1 or SIM 2 > Toggle on Wi-Fi calling
How to use VOIP service to make calls over Wi-Fi in Stock Android (Pie 9.0, Oreo 8.1)
If your carriers did not support Wi-Fi calling, try this method. Some services can make calls over Wi-Fi, such as VOIP. To do so, you need to add a SIP (Session initiation protocol) account to your phone.
Step 1: Open the Google Phone app on your devices.
Step 2: Tap Three vertical dots (More) at the upper right corner.
Step 3: Select settings.
Step 4: Tap Calls.
Step 5: Tap calling accounts.
Step 6: Tap SIP accounts under SIP settings.
Step 7: Tap + icon from the upper right corner.
Step 8: Enter the username, password, and server, and tap Save.
Now you can enable and use wifi calling OnePlus 6T using a mobile network.
And that’s all. We hope this makes it clear how to enable Wifi calling on OnePlus 6T. If you have any kind of trouble, tell us in the below comment box. Stay and connect with us for the latest updates.