I recently purchased a Samsung Galaxy S20 Plus and I am a T Mobile/Sprint Customer. I have activated Google Duo on my phone for video calling with my children. I noticed that after I complete a Google Duo call and try to make a regular phone call the person on the other end can not hear me, but I can hear them. If I wait around 15 minutes, then I am able to make the call again and connect with the person.
Does anyone have any idea what is going on or experiencing the same thing? It is almost like Google Duo is still connected, but I am making a regular call from my Galaxy to a landline or another cell phone and not using Google Duo.