Radicom Research, Inc. introduced a line of USB hardware modems in modular and standalone configurations. The modems process data using their own hardware, and they do not use any processing power of the host computer. These modems are CDC-compliant, and they are supported by Microsoft CDC modem drivers and Linux CDC-ACM drivers. They work with Linux, Windows and Mac operating systems. The modems contain a hardware controller, a data pump and an International DAA (data access arrangement) that does not draw power from the telephone line, but draws low power from the USB port. Thus, they operate reliably when line current is low due to long lines or poor line conditions.
Radicom Research, Inc., 408-383-9006, www.radi.com