We are looking to establish an ISDN dial on demand link from Japan to North America. I am wondering if there are any compatability issues that I need to worry about. Specifically, I noticed that at the Japan end, we will have a router with a serial port attached to a TA which uses v.110 encapsulation. At the North American end, we have a router with a BRI that uses v.120 encapsulation. I don't know if using V.110 at one end versus V.120 at the other introduces a problem or not. Any ideas or actual experiences would help. Thanks in advance.