1. Make sure you download Google Voice from the Play Store
2. Hit the "Call" button on your phone as if you are about to type in a phone number to call.
3. Hit the menu button
4. Select Settings
5. Select "Voicemail"
6. Select "Google Voice"
7. Wait for call setting to update
8. You're done; test by having someone leave you a voicemail!!!!
I created this because I didn't find any instructions for setting up a CM 10.2 Samsung Galaxy S4 with Google Voice. While I would like to pretend I knew what I was doing, this came about simply by trial and error and luck.
Sent from my SGH-M919 using xda app-developers app