The Faximum software is stored in two main directories.
One (called FAXserver) for the server software (which is only installed on the machine that has the fax modems and that acts as the fax server for all users).
The other (called FAXclient) for the client software which is installed on all machines that wish to use the fax software (including the server machine).
These directories are, by default, installed in /opt.
For information on Faximum files not in the FAXserver or FAXclient directories, see other Faximum files.