Call waiting waits in the wings for its role on the Internet

Another benefit of the new modem is an ability to send data faster. Under the V.90 standard, the maximum speed for data transmission on a phone line in the downstream direction -- from the ISP to a user's modem -- is 56 kilobits per second. But the upload speeds are limited to 33.6 kilobits per second. Under the V.92 standard, the upload speed will be as fast as 48 kilobits per second.