I used Google Voice for VM on my HTC one M8 and have it downloaded on the U11, I've gone through all the activation steps per Google support but cannot get my phone to switch from Verizon VM (*86) to Google Voice, the option isn't even there in phone settings, any ideas?
You have to go to your Google voice account online then legacy settings and
activate the voicemail. It will then have you dial some numbers to set up
my phone number is already registered in that section of the settings and
doesn't prompt me to go through any steps, could the issue be that google
voice is still active on my M8?