If the time comes that you would like to switch into a different phone, we try to make it as simple as possible. If you already have the phone simply log into your account at twigby.com. Then click on account settings, then select the line you want to switch phones on. Then scroll down to “active phone” and click change phone. If you want to purchase a Twigby phone to replace the phone you already have, please chat with us on twigby.com. If you have any questions, please Chat with us. We are here to help!