Chosen Solution

I have an Iphone 6 and I have an issue with my main speaker.My problem is that when I talk to someone on the phone,I can hear the the person’s voice but they are not able to hear my voice.what Should I do to resolve it?

Is there no sound at all? or can they still faintly hear you (Muffled)?? If no sound at all, verify you are not on mute or change the charging port as it has the microphone built into it and may be faulty. Or if muffled or faint, use a very fine tip object, like toothpick or tweezers to clean out the microphone port. Sometimes they develop debris over time and is clogging it up preventing good audio.

I got solution , Device Settings > General> Accessibility > Phone Noise Cancellation turn to OFF and Hearing aid Compatibility turn to ON.. Then restart the mobile . I hope this can help !