Microphone issue during video calls on various apps when speaker mode is on
I am facing issue on various video calls apps eg facetime, messenger, viber, whatspp that voice is muted on other end when speaker mode is on. Its iphone 12 pro max bought 2 years back running on ios 16.6.
Problem is only during video calls and no issue during audio calls.
I tested hardware microphone using video, voice recording etc all seems ok. Not sure if its hw issue or ios issue? Has anyone experienced similar issue? What could be solution? Shall I exchange my phone assuming its hardware microphone issue or wait for next ios update assuming its ios bug? -Thanks.
iPhone 12 Pro Max, iOS 16