What is the controversy between CAP and DMT line codes?
CAP and DMT are two “line codes” or modulation systems currently on the market today for xDSL. The Forum has taken no position on the merits or demerits of either. Each line code has its own case to make. All major xDSL vendors belong to the ADSL Forum and set aside their differences while working together to create system guidelines and market positions. As such, it can be fairly represented that the line code issue will have little bearing on the size, speed, or character of the xDSL market as a whole.
