Bad news here .. the modem freezes the phone line (picking up a phone reveals no sound at all) after varying periods of time. When the modem fails, the message in the kernel.log is: Jan 27 20:45:03 myhost st7554: fifo underrun! I have to kill slmodemd and remove the slusb module to free the phone line. After restarting, it will work for a while, but eventually freezes again. regards,