“Does this Phone work off a server? I am shopping around for phones. I found one at staples the x16 phone that works off a server kind of like a router. We have 4 lines coming in to the building. 2 are dedicated to the phones and the other are for fax and credit card machine. With that server I can put 4 phones to 2 lines. So I like that feature. How does this phone connect multiple lines to multiple phones. Does it have a server similar that I need to purchase?”