How to enable Wifi calling on OnePlus 6T

Now you can manually enable Wifi calling on OnePlus 6T Pie devices. OnePlus 6T wifi calling feature is useful to make phone call using a Wi-Fi connection instead of your mobile network. Not all carriers supported this Wi-Fi calling features. If your carrier doesn’t support call over Wi-Fi, you can try voice over IP service.

First of all set up WiFi calling OnePlus 6T to make call over Wi-Fi. When you’re phone connected to mobile data, you’ll see Internet call or Wi-Fi calling option when try to make a phone call. When you’re not connected to Wi-Fi, your calls use your cellular data if activate. Follow below given step by step process to enable Wifi calling on OnePlus 6T Pie 9.0.

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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 in your device. Sometimes depends on carriers to activate such as Verizon wireless, T-mobile, AT&T mobile, Sprint etc.

Step 1: Swipe down notification shade from top of the screen and tap Settings gear icon

Step 2: Tap Wi-Fi and 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 OnePlus 6T Wifi calling option under enhanced communications section. By default turned off wifi calling in your device.

Step 5: Turn on Wi-Fi calling toggle in your OnePlus 6T Pie 9.0

Now you’ll make call over Wi-Fi in your OnePlus 6T Oxygen OS devices.

How to use VOIP service to make calls over Wi-Fi in Android Pie 9.0, Oreo 8.1

If your carriers not supported 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 Google Phone app in your devices

Step 2: Tap Three vertical dots (More) at 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 upper right corner

How to enable Wifi calling on OnePlus 6T

Step 8: Enter the username, password and server and tap Save

Now you can enable and use wifi calling OnePlus 6T using mobile network.

And that’s all. We hope this makes it clear how to enable Wifi calling on OnePlus 6T Pie. If you have any kind of trouble, tell us in below comment box. Stay and connect with us for latest updates.

About Bestusefultips

I'm Arpit Patel, techno lover from India. Bestusefultips is a technology website focused on latest Android news, tricks & tips related android devices, tutorials and videos.


  1. Thank you so very much for this information. I just received my OnePlus 6T McLaren. No one could hear me when I called them.. they said I sounded like a robot or no sound at all and breaking up.. found out, like my last phone it had ‘ Wi-Fi calling on by default. I just about went insane trying to find where on the phone was the option to turn it off. the standard instructions did not work.. This helped me greatly. it WAS in with the Sim card options.. NOT where they told me in wifi setting.

  2. wifi calling with verizon currently still isn’t working hopefully soon.

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