how to forward your cell phone
1 Press the 10-digit number of the cell phone where you'd like your calls to be forwarded to [source: Vonage 2  ]. Press the pound button (#) or wait for a response indicating that call forwarding has been activated [source: Vonage, ATT 3  ]. Repeat steps 1 through 3 if you're not sure if the process worked [source: ATT ].f so, you can consider forwarding calls from your landline to your cell phone. It's really not that complicated. Just follow these steps, and your calls will be forwarded from your landline to your cell phone: