Actually, I have installed Hylafax on my system, 
and I am stopped probably by a problem of my inexperience of this product 
!
 
I work on an SCO Openserver 5.0.5, with a modem USRobotics Sportster Flash, 
and my problem is that my modem seems wedged !
 
I've see that there is some problems with USR modem, so I can buy another 
modem, and it's nice if I can get a list of compatible modems with 
Hylafax.
 
Gérard RICHEZ