My voice not clear enough to the caller.
Hi there, I’m using iPhone 7 Plus. Recently I’m having a hard time with this phone right now. My voice is not so clear when I am speaking with someone. What can I do to overcome this problem? Still can hear me, but with very low sounds. Phone microphone works perfectly. I can record my voice and recording videos also very fine. Not any different between other iPhones compare with voice recording. Basically I cannot see any hardware problem. I was restored my phone to factory settings. Still having this problem. Please help me to find out the issue. Thanks.
iPhone 7 Plus, iOS 15