Whenever there is voice mail in google voice, voice mail indicator shows up on the phone. I check voice mail and delete it, there's nothing whatsoever in GV's inbox, no voice mails, missed calls, messages, or anything else, but indicator does not go away. But it disappears at once when I open obi control panel in browser, without making any changes.
I saw articles about this problem; the setting "'Place missed calls in the inbox" is off in my GV account.
Search on here for Google Voice Mail indicator and Trash, Archived, Spam.
Many discussions on the topc, issue is normally you have one or more unread VMs or Text messages in some other folder besides the main folder. Assuming an Obi202, added complication is the last two firmware versions do not turn off the indicators instantly, it may take a few minutes.