Don’t you hate it when you get a call and the number is “restricted” or “unknown”? It’s annoying because you know full well that it’s most likely spam calling. If you are a user of Google Voice, however, you can now get your sweet revenge on telemarketers everywhere with the introduction of two new customizable caller groups.
Basically, calls can now be divided into those in your address book (All Contacts), and those that are unknown (Anonymous Callers). The anonymous group is where you can have some fun by setting up a custom greeting that picks up after one ring. Use this message to tell anonymous callers just how you feel about them being… well… anonymous. Or, if you’re not in the mood to be creative, simply send them to voicemail directly and deal with them later. Awesome addition, Google.
source google voice blog