Here are some ways you could fix the problem.
What do you do?
When you turn it back on, your iPhone effectively resets its connection with the cellular carrier.
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If a temporary connection issue is affecting the call quality, this method could fix that.
After waiting a few seconds, hit the button again to turn it off.
This should fix any software-related issues or glitches that might cause the problem.
Kris Wouk / How-To Geek
After waiting a few seconds, press and hold the power button until you see the Apple logo.
you might also ask Siri to “restart my iPhone.”
Similarly, use the toothbrush to remove any dirt or accumulations from the microphone grill.
While you’re at it, feel free to thoroughly bysafely clean your iPhone.
Once you clean the mesh, the sound coming out of it should improve significantly.
This will eliminate any connectivity issues that could hamper call quality.
Kris Wouk / How-To Geek
Just head to parameters > Bluetooth and tap the arrow next to the gear’s name.
Now hit “Forget This machine” and confirm.
This usually involves putting it into pairing mode and using the Bluetooth menu to select it.
To confirm, pair your earbuds or headphones with another smartphone and check the audio quality on the call.
If the problem persists, there’s a solid chance that your earphones are the root cause.
Yes, we understand that it poses some privacy-related concerns, especially if you’re in a public place.
You also might be a bother to anyone else nearby.
While answering a call on speakerphone, consider turning down the volume.
Disable Voice Isolation Mode
With iOS 16.4, Apple released Voice Isolation mode for all regular calls.
Since the feature relies on advanced processing, it can sometimes add a bit of distortion to your voice.
The further the microphone gets, the more my voice starts sounding unnatural and muffled.
To disable Voice Isolation mode, head to Control Center during a call and select Mic Mode.
From the available microphone mode options, select Standard.
For instance, an unstable Wi-Fi connection can cause your voice to break or even lead to call drops.
Hence, consider turning off the feature from tweaks > Cellular > Wi-Fi Calling.
You’ll need to decide whether or not Wi-Fi calling is worth it based on your own situation.
Disable Your VPN
If you make a lot ofVoIP calls, consider disabling the VPN.
VoIP relies on a smooth and steady internet connection so a slow VPN could limit the available bandwidth.
Together, these factors could degrade the call quality on your iPhone.
So, if you’re experiencing issues with VoIP calls, disconnect the VPN and retry.
To patch your iPhone, head to controls > General and hit Software Update.
If an update is available, consider installing it.
Head to configs > General > Transfer or Reset [unit].
Then select “Reset internet controls” from the options on the screen.
type your equipment’s passcode and confirm the action on the following screen.
