I am having trouble with signal reception. I can hear callers just fine, but they can't hear me. the signal strength is 1-2 bars. interestingly I did not have problems when I had my iphone 11, and before. I had a 12 and it had the same problem so I upgraded to the 13 hoping that would fix it. now I am thinking of going back to an 11 if I can find it. why is the service so bad at my location. I am a doctor and on call all the time so having to call back on a land line because my cell service is bad, is a major inconvenience.