1. Open the Settings app. 2. Tap "Phone." 3. Tap "Call Forwarding." 6. Tap the arrow to go back to the previous screen. You're now set up to forward your incoming calls to the number you entered.

While it can be set up to forward calls to your landline, you can't call out from a landline phone via your Google Voice number. All that noted, there are more pros to cons to using Google Voice ...