Installation Instructions:

Install these files in place of the same-named files,
(waverun\V120\ and Waverun\adlc directories).

doing :

 To Disable fallback mode on the calling station for V.120:

   Edit the file WRV120W.INI in the WINDOWS directory by adding the following
statement to the [CONFIG] section:

[CONFIG]:
NOFALLBACK=1

To enable fallback, remove the  NOFALLBACK=1 statement

To do the same for the Async-Sync driver on the calling station,
make the same entry in the WRADLCW.INI file in the WINDOWS directory.