I found the solution by accident. I was testing my second iPhone 8+ and wasn't getting the same results as I originally did in the first iPhone. My husband, who is a software developer, and I heard a new and different sound in one of the demos. I did some research and when I researched the phone it said it was using Nuance in the ear. I realized that I have the Nuance speech engine in my first iPhone. I just deleted Nuance and rebooted the phone. I was then able to hear the call again which amazes me given I, simply by having it installed, blocked access to speech. I do not know if this was a Nuance bug, but I have not had trouble with the speech engine since. I am going to be sure when my next phone is updated that Nuance is deleted and I will report it, but for the moment, you should be able to hear the call again.
I had same issue. My I solved it opening doors and windows. It’s the most irritating thing because I hate that I have sound on or off every time I close a door or a window. It’s really a pain I’ll get used to it though.
this is a solution that does work for me. The computer that was playing the call for me crashed, and i could no longer hear the caller. I then changed to the program that was calling me, and the call was ok but at a very low volume. I went to reconnect my speakers that the phone was plugged into (forget the brand), and played the call myself. Returned the speakers I had been using, went back to the computer and the call was loud and clear! d2c66b5586