I can hear, the other person on the other end, but they cant hear me

Hello,

The problem is that the mouth piece of your phone is bad that is why the cannot hear your voice.
I advice you get the mouth piece of your phone replace because it is bad and that is why your callers cannot hear you.

All you need to do is to change the mouth piece of your phone and you will see that your callers will hear after you have replace the mouth piece of your phone.

Meanwhile, you can get hands free pending the time you will replace the mouth piece of your phone.

Take care.