What Does V.22 Mean?
V.22 is an ITU Telecommunications Standardization Sector recommendation used for full duplex communication between two analog dial-up modems using phrase-shift keying modulation at 600 baud to carry data at around 1,200 or 600 bits per second. V.22 is a variation of the Bell 212 A modulation format. V.22 is the first true world standard developed for half duplex communication at 1,200 bps and is used mainly in Europe and Japan. In the United States, the protocol is defined by the Bell 212 A. Modems that adhere to this standard and are used on generalized switched telephone networks (GSTN) and point-to-point circuits. V.22 is pronounced as v-dot-twenty-two.
Techopedia Explains V.22
The main characteristic features of modems using the V.22 standard are:
