Model: FaxModem 56K USB
Operating System: Mac OS (Note: might work with other versions of this os.)
Zoom/FaxModem 56K USB
To determine the current firmware version of your modem, open a terminal program such as MicroPhone LT and select the port assigned to the modem. Then type the command ATI3 (ati3) and press Return.
The latest firmware update for you modem is version 052099g-I. This firmware is the same as the original version (052099g-F) but includes the Channel 2 call waiting detection feature. This update is not neccessary if you do not use call waiting.