I have a Google Pixel with an unlocked boot loader but not currently rooted. I'm on Verizon and running Android 8.1.0. When I get a new voice mail it takes hours before the phone notifies me. If I'm expecting a call and poll by opening the phone app and switching to the VM tab I see the pending voice mail. Otherwise, the notification shows up in the evening, hours after the call. I spent quite a long time chatting with a Verizon support technician without resolving the issue. Is anyone else having this problem? Is there a solution?