Xircom's new 56-kbps modems, expected to ship in the second quarter of this year, will enable mobile computer users to receive information at about double the speeds of current 28.8-kbps modems.
The company's goal is to ship products that are upgradable to the International Telecommunications Union software standard once it is ratified. A standard for the technology is needed to achieve some level of compatibility among modems from different manufacturers.
Motorola has also recently announced support for the Lucent-Rockwell standard.
Rockwell and Lucent are competing against U.S. Robotics x2 technology. Currently, the two camps have different, incompatible 56-kbps communications protocols. U.S. Robotics 56-kbps modems are already being sold in computer stores nationwide.