Google announced that spam filtering on Google Voice is now automatic thanks to the help of the thousands of Google Voice users who mark calls as spam everyday—and Google's own spam identification tools. It is now possible to automatically redirect calls, texts, and voicemails from any of the numbers in our database directly into your spam folder.
You can enable this feature on the Calls tab of Google Voice settings by checking the box next to Global SPAM filtering. And if a number ends up incorrectly marked as spam, you can easily unblock it by selecting the message and clicking the “Not Spam” button in your spam folder.
