Apple iPhone speaker volume too low when calling

For me the following worked. My speaker grill at the top was blocked from dirt. I used a wet cotton bud end to clean it. Used the other end to dry it. As soon as the dirt came out, the volume was ok again. I had an iPhone 11.

Hello and welcome to Apple Support Communities, prabakaran208!

I understand your iPhone speaker sound is too low. I'd be happy to provide information to help you address this.

Try the steps outlined here: If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker

Let us know the results.

Have a great day!

Hey prabakaran208!

You'll want to reach out to Apple Support for further assistance.

Regards.

THIS DOES NOT HELP. SPEAKER PHONE SOUNDS GOOD, IT'S JUST WHEN IM ON A CALL THROUGH THE RECEIVER