Internet users for some time. K56Flex is supported by modem vendors using Rockwell International Corporation and Lucent Technologies Inc. chipsets. All of them will, however, communicate with all modem servers at speeds of up to 33,000 bps using V.34 technology. As most of you using K56Flex modems know, you may be able to download at nearly 56Kbps speed.
Actual speed varies depending upon line conditions and Internet congestion.
There is no reason to wait for the V.90 technology in purchasing 56K modems. All Hayes 56K modems support K56Flex technology. All upgrades for Hayes 56K modems to V.90 will be free, so there is no need to wait until the new standard is in place. You can buy now, enjoy the benefits of 56K technology, and upgrade for free later. You will also need to upgrade your modem with software to make it V.90 compliant.