On 01/15 07:33 , Jay Kline wrote: > I thought anything that modulated an analog signal to a digital signal (and > the reverse) was a modem. It may not be audible, but it is an analog signal. But in the case of a DSL or cable Internet connection, it is digital on the wire. (Arguably I suppose in the case of a POTS telephone connection it uses discrete tones, so could be called 'digital' since it doesn't use a smooth wave). -- Carl Soderstrom Systems Administrator Real-Time Enterprises www.real-time.com