I've got a Elsa 33.6 modem running 24/7 at a unix machine, working fine
except that it hangs from time to time. Usually mgetty is listening
actively, and sometimes uucico calls out or a fax machine calls in. From
time to time the modem hangs and doesn't react on any command any more.
Even a simple AT isn't answered. The only way to get it running again is
switching it off and on again. Bad for unattended operation.

Anyone out there having that problem? Is there a solution?