Make Sure You Aren’t Connected to Other Accessories
It’s not common, but sometimes, you might accidentally connect to a Bluetooth device, potentially ruining your phone calls. Since the iPhone will automatically connect to any other accessories it’s connected to in the past, like speakers or earbuds, you might connect your iPhone by mistake and ruin your phone call.
To check which Bluetooth devices are connected to your iPhone, you need to do the following:
- Open the Settings app.
- Scroll down and tap on Bluetooth.
- Under My Devices, you’ll find all the Bluetooth devices you’ve connected to in the past. Next to each device’s name, you’ll see if it has an active connection to your iPhone.
You can also try turning off your iPhone’s Bluetooth to see if that fixes the issue.