The Motorola SM56 Speakerphone Modem is a hardware device that combines a modem and a speakerphone in a single unit. It was typically used in older PCs for dial-up internet access and voice communication over the phone line (using the modem's speakerphone function). The modem itself connects to the computer via a serial or PCI interface and uses special software and drivers to function correctly in a Windows environment.

The Motorola SM56 Speakerphone Modem Windows driver is software that allows your Windows operating system to communicate with and control the hardware device. Without this driver, the operating system may not recognize the modem, or it may not work properly for tasks like making dial-up internet connections or using the speakerphone feature.