When I get a call, I often can hear the other side just fine, but they don't hear me. This happens so often that I wonder if the problem could be my phone's sending signal strength. (There are tons of apps showing the received signal strength, but this is not my point.)
- Is there a way to measure or configure this?
- Is this a possible explanation at all?
Edit: should have added that the call is often dropped some seconds after I become inaudible. I hear the other side crisp and clear complaining about me not audible and then it drops.
Further I discovered the Settings -> About Phone -> Status -> SUBS Status (my translations from German) where I see that the connection is difficult in these situations (UMTS at -95dbm to -103dbm).
The model I am envisaging is that the receive (from cell) and send channels (to cell) are slightly asymmetric, due to walls, buildings and other obstacles, such that the phone software underestimates the necessary sending power by a few percent.