A quick refresher if you’re not familiar with Google Voice: it allows you to choose a US phone number to serve as your central number. Any calls to that number can be filtered and forwarded to any of your phones accordingly. Other features like voicemail transcription and SMS forwarding are the cherries on top. Apps are available for iOS and Android, although carrier integration is the dream many are chasing. Google has hinted that that it’s trying to court the various carriers.