Modems use different ways of connecting to computers. Make sure the modem's interface is compatible with your computer.
This is the maximum speed that the modem can transfer data from a PC. The actual data speed depends on ISP (Internet Service Provider).
Modems are either installed internally in a computer, or remain externally connected to the computer via a wire.
The platform refers to the operating system the device is compatible with, such as Windows98 or OSX.
Analog Modulation Protocol
ITU V.34, ITU V.32bis, ITU V.32, ITU V.22bis, ITU V.22, ITU V.90, ITU V.21, ITU V.23, ITU V.92
This is the maximum speed that data can be transferred from the modem to a PC.
Error Correction Protocol
ITU V.42 (LAPM), MNP-4, MNP-3, MNP-2