Go to Vonage.com pick a plan and they will ship you the box to hook up to your WiFi cable box or you don't really need it at all you can download the app on your smart phone set your account up once you have established lished a phone number and I. The settings gs you can do a roll over to ring your cell Everytime that the vonage number is called your cell phone will ring.
It must be an account with a contract/ bill like sprint, Verizon, tmobile......
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