Have been sucessfully using for over a year on AOL clients. This disables x2 and sets a 49,300bps speed limit. This modem is overly aggressive and tries to renegotiate its speed higher about once every two seconds otherwise. A 56K v.90 getting something like HALF speed is a tell tale sign of a modem in need of the latest v.90 upgrade. On an X2 or v90 dialup.
Error correction helps.
Still don't know what causes the unstability at the higher speed. This repository is for owners of Portmasters. If you need instruction on how to use these strings, you should consult another source. I apologize to everyone else for this entry. This repository has been a tremendous resource to me and my fellow techs.