My iPhone 4 has picked up a problem over the past couple of days. When I answer the phone I can hear people perfectly, but about 95% they can't hear me. Putting them on speaker doesn't solve the issue, however, if I do facetime, or make a movie using the built in camera, the sound is perfect. Any thoughts on what might be causing this? I haven't tried using the headphone mic to see if that helps.
Regards,
Chuck
Regards,
Chuck