You have two subnetworks that you want to connect.
Software appears to have been installed correctly.
Know that ISDN will replace standard analog phone lines. I chose application server. A lot of people on the Saluki list have been worrying about which to choose, or to choose both. File services are network applications that store, retrieve, and move data. Application server - allow client PCs to access and use extra computing power and expensive software applications that reside on a shared computer.