OK. I’m NO techie, but I also had similar problems with my Phonak Marvel aids streaming on a One+ Android phone. Turns out there were a couple things going on: I had wi-fi calling set to ON, and I think that was a mistake. Calls would ring once (if even) and then disconnect for no reason.
Once I got through to someone, I would hear every 10th word they were saying UNTIL I found a “sweet spot” in my house (probably one where wifi was blocked!) to hear them. Turns out that was deep inside my bathroom by the potty, so I knew I needed to do something and fix it! I turned wi-fi calling OFF, and will see if that’s better.
On top of which, my phone would not ring ANYONE who was not entered in my Contacts. Annoying AND intrusive, but there y’are! So if I was staying at a VRBO, or trying out a new doc, I’d always have to enter their name and PHONE NUMBER in order for the incoming call to RING my phone. Not sure what the workaround is for that.
Like I say, I’m no techie, so it’s extra frustrating when these idiotic tools control US. Hope you resolve your call issues, cuz there’s nothing as frustrating as having brand new aids, BT all set up, and STILL can’t stream.
And for that last little wrinkle, I had my audi install “Acoustic Phone” on my aids. That way, I can use any phone (landline, cell) and “stream” a call to both ears. It’s about 90% as good as BT streaming direct into the aids.