I am holding off for a while. When I tried the alpha version a couple of days ago, it just kept ringing on an incoming call and didn’t stop until killed. That is, however, similar to the problem I had with my other L5 running gnome-calls 43.0 before I switched. Never got any help troubleshooting that one mentioned here (sorry for the subject line, can’t change it). So it might not be a gnome-calls issue, but it is strange to have a similar problem on two different phones with different versions of gnome-calls.