A further update. I cannot reproduce bug #1226298 on maguro. I tried again with today's image and made ~50 incoming calls and couldn't get the OSD to fail.
So, as I'd installed today's image on maguro, I installed the same on mako to be sure the bug hadn't been fixed in today's build.
It took me couple of tries to reproduce the callback scenario. The first two times I tried, I would just VoiceCallManager method calls "GetProperties" and "GetCalls" after which the OSD would work again. The third failure re-produced the auto-callback scenario and produced a DBus method call to "Dial" ( see above ).
A further update. I cannot reproduce bug #1226298 on maguro. I tried again with today's image and made ~50 incoming calls and couldn't get the OSD to fail.
So, as I'd installed today's image on maguro, I installed the same on mako to be sure the bug hadn't been fixed in today's build.
It took me couple of tries to reproduce the callback scenario. The first two times I tried, I would just VoiceCallManager method calls "GetProperties" and "GetCalls" after which the OSD would work again. The third failure re-produced the auto-callback scenario and produced a DBus method call to "Dial" ( see above ).