As Exo said, a factor in the transmission speed is signal degradation over the transmission line (telephone line). So, one way to make sure you minimize degradation, is to make sure that your phone lines/connections to the street are good. Making good connections and using good wire is a simple way to increase modem speed. Probably not by much, though.ElectroGeek_87 said:Is it possible to boost dial up modem speed by using some type of external circuit to boost the current or voltage of the line. I know nothing about if this would work or how to do it . Any info or websites containing this type of info will be greatly appreciated.