Have had trouble with calling for a while - garbled speech, can't hear me, dropped calls - while in my home. Today, can't make calls at all and 'Mobile Network Not Available' pops up. No problems with other phones in my home. I put my sim card back in my old iPhone and it works fine.

2 years later

Having the same problem as of a couple of updates back... pixel 5.

    SAphoto First, make sure your phone is up to date and doesn't have any pending updates by restarting.

    If the problem persists, you can try resetting settings from the owner profile in Settings > System > Reset options > Reset mobile network settings to see if that helps.

    If it doesn't, you might want to check with your mobile provider's customer support to see if they have any suggestions, or maybe someone here might have other suggestions.