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This article was previously published under Q104287
SUMMARY
Several modems supported by Windows NT are not supported by Remote
Access Service (RAS) Client version 1.1a. Some modems supported by
RAS 1.1a are not supported by Windows NT.
The following modems are supported by Windows NT, but not by RAS 1.1a:
The following modems are supported by RAS 1.1a, but not by Windows NT:
Hayes 1200
Penril Alliance V.32
Telebit QBlazer
USRobotics 1200
USRobotics 2400
Western Datacom Worldcom
The Remote Access Service User's Guide, Chapter 4, does contain
instructions for using unsupported modems, as well as instructions for
the MODEMS.INF file to add additional modems.