You can integrate VOIP into your existing home wireless network. There are two ways to go about setting up VOIP with a home network. If you're happy with your current wireless router, you can buy an adaptor that will plug into the current router. If you want to upgrade your router while setting up VOIP, you can buy a new wireless router that is VOIP capable. Usually, your VOIP provider can offer you a deal on a new router at lower cost.