If you already have home network and you want to add VOIP capabilities, you can probably get away with using your current router, without having to purchase a VOIP router. Instead, look at VOIP adaptors. The adaptor plugs into your network router and translates the VOIP call for digital transmission through your network. This can help, especially if you've just invested in an updated wireless router and don't want to switch again. However, you'll still have to pay at least $60 for an adaptor.