Could anyone suggest a voice fax modem that's good with a G4/)S 9.2.1? I'd like to get one that is V.92/V44 (new technology). US Robotics has one, but as far as I can see, it's only for Windows. If anyone has a voice modem, could you tell me the advantages. Are you able to use speaker phone capabilities, to where you can speak into a mic rather than the handset? Any other advantages? How are the USB external modems with the new OS?