Fortunately, it wasn't too difficult to retool refineries to produce gas when the automobile hit big, but one wonders how much it's going to cost to replace all those fixed asymmetrical modems
Depending on the application, a 2 Mbps Champion SDSL/ISDN modem will often outperform asymmetrical modems
running at a faster downstream data rate.
144 Mbit/s and an ISDN line upstream and implements the standard DMT (discreet multi-tone) line transmission code by employing a pair of high speed asymmetrical modems
using state-of-the-art DSP (Digital Signal Processing) algorithms and devices.