data circuit-terminating equipment(A data circuit-terminating equipment (DCE) is a device that sits between the data terminal equipment (DTE) and a data transmission circuit. It is also called data communications equipment and data carrier equipment. Usually, the DTE device is the terminal (or computer), and the DCE is a modem. wiki Alexander Demidov)
data transmission services(Orange says it is the third-largest player in that corporate market, holding 15 percent market share for both data transmission services and IT services. TMT Alexander Demidov)
