> > yes. but there are already USB modems which doesn't behave as defined in
> > USB standard and doesn't work with "umodem" driver
> 
> It's worse than that, actually.  The USB Comm Class standard describes many
> ways to make a modem.  The umodem driver handles modems that follow
> the Abstract Control Model.  The standard allows other ways, the winmodems.
> It's just that this latter part of the standard is pointless, because it doesn't really
> specify the protocol to use. :-(
do you know any model that works with umodem driver?