Iphone 7 can't hear caller's caller can't hear me

Hello Desai2970,

Thanks for choosing the Apple Support Communities. If we understand correctly, you are unable to hear callers, and callers cannot hear you. We can understand why you'd reach out for a solution.

First, let's see if the mics are working properly on your iPhone.

If the microphones on your iPhone aren't working

Also, can you hear callers when connected to another network, or with speakerphone on? Let us know.

Cheers!