What you do with the network after it leaves their router is up to you.
What you said is really all they need to do. Provide you with the external IP for access from the internet. A DNS entry for name to IP resolution, if you really need it. Provide an inside IP for access to the internet from within your network.
------------------------------I ain't signing nothin
Reply to sturm
got all the info and installed a switch, 8 pcs, several printers in a office.. next will be couple of servers and possible Voip...so need to start reading about voip...