I am trying to set up a dial up network for a client of mine that is using XP on both PC's. One is a home PC and the other PC is conneted to his business LAN. I get an 678 error. The poblem that I noticed is that both the home and buisness PC will dial and ring the phone at each site but neither PC will answer the call. Is a second party software neede to complete this connection? By the way they are both using Win XP home addition.