It may happen that you need your phone speaker to be the default device when making / receiving calls instead of the earpiece. Windows 10 mobile now allows you set your speakers to be default when you make /receive calls. Navigate to Settings Tap on System. Tap on Phone. Scroll down to “Audio routing”. Tap on Read more about how to make speaker default while making or receiving calls[…]
Windows 10 mobile can automatically turn on speaker when you move your phone away from ear. Navigate to settings. Tap on system. Tap on phone. Scroll down to “Audio routing”. Tap on Audio routing settings. Turn on “During a call, turn on the speaker when I move my phone away from my ear”.