22-04-2021 16:45
22-04-2021 16:49
If phone is in a case, remove it and see if any better.
Also, make sure you aren't covering the mic in the way you are holding the phone.
22-04-2021 16:52
Hi Jazzzbears,
It sounds like you might have an issue with the mic and something might be blocking it.
I'd suggest making an appointment with one of our gurus in store to have a look at it for you. You can book an appointment using this link https://guru.secure.force.com/O2DeskStoreLocator.
You can also book an appointment with Apple for them to have a look at it.
How old is the phone? If you're due an upgrade or close then it might be worth looking at changing it.
Have a great afternoon!