datel service

This common international term was derived from "data telecommunications" and refers to telecommunications services that use telecommunications paths for data transmission.

In addition, it is the term used for data transmission over switched networks. For data transmission, services are offered on the public switched telephone network, the integrated text and data network( IDN), leased lines and Datex networks. The special use of the telephone network offers the advantage of the wide distribution of telephone connections with the disadvantage of lower quality in terms of maximum transmission speed and error security.