Connectivity issues on remote dialup config

Wondering if there are issues when attempting to direct notes connect, via serial port, a win2k notes 5.012 client to a domino 5.012 server, when, in order to have the external modems work, the port speeds need to be set to 38400, while the phone/modems can only transmit data at 9600 max. Would there be sync problems? The phone/modems connect and lock between the two, but end up getting messgs “unable to access remote systems”. We know the user accts are set up properly because the system works fine when using RAS services and tcpip. If anyone has any input on this, we would be very appreciative in hearing them…thanks in advance