I learned two things while looking for a solutions. First, there are a lot of people having this problem, so I assume some may have come here looking for a solution. The second thing I learned is good news for them - the answer might be simple.
At a few places I saw that people went to their carriers for a code, typically octothorp, octothorp, some digits, octothorp. The formula remained the same but the digits changed from one carrier to another. I gave my carrier a call even though Call Forwarding is not in my package of options. They provided a code (octothorp, octothorp, some digits, octothorp,), which I entered by using the dialer and, after several hours, the code continues to keep Call Forwarding turned off.
Last edited by ryck; 10/22/20 03:48 AM.