How Do I Connected Voip Adaptor, Wireless Router and Cable Modem?

Well, what you'll do is connect the cable modem to the wireless router from the port on the modem to the WAN/Internet port on the wireless router. From the wireless router, in any of the number ports 1-4, put a cable between the router to the VoIP adapter. That's the simple plan, but there are some more technical items to address, but this is difficult to handle without the technical information about the network.