reply to Worried G
Re: Magicjack connection You need at the very least an ethernet router, or better yet a combined DSL modem and ethernet router that's compatible with your provider and service.
Most of them come with 4 ethernet ports leaving you room to add another two computers or ethernet printers or whatever else you desire on your home network.
Also, while you're at it, if you're ever planning to buy a laptop or tablet, you may as well get a router with B/G/N Wifi capabilities as well.
Personally I use a TP-Link Wireless N Class Modem Router on my home network and I'm quite happy with it, though I had to add an 8 port switch to connect all my devices.
Anyway, ask your provider what brand/make/models of modem/routers they recommend for their network and pick one up. That should solve your problem.