I have a pixel 4a, running into latest stable version of GrapheneOS. My carrier is T-Mobile. I have Google services framework installed with no network access. I have read the carrier section under usage on GrapheneOS.org
I see no visual voicemail options in the stock dialer. All permissions enabled except camera, location, music and audio, nearby devices and photos and videos
Phone by Google is installed, latest version updated September 29th. All permissions enabled except location, nearby devices and network
Phone by Google looks like visual voicemail is active, but errors when trying to play a voicemail with unsupported message type and couldn't play voicemail. There is no text version of any voicemail.
Do I need to install another app?
Does Phone by Google need network permission? I'd rather do without visual voicemail if it means sending data to Google.
Any other settings I should try?
Many thanks in advance