SSH ETS 300 221:1993

Terminal Equipment (TE); Syntax-based Videotex lower layer protocols using packet mode access over the Public Switched Telephone Network (PSTN)

Scope

This ETS aims to meet the requirements of network operators and equipment manufacturers who are designing equipment to operate with an increased speed on Videotex services over the Public Switched Telephone Network (PSTN). This ETS has a close relationship to the set of ETSs 300 072 [1] to 300 076 [5] describing the Videotex data syntax. This ETS specifies how to use the end-to-end protocols defined by ETS 300 223 [6] in the case of syntaxbased Videotex lower layer protocols using packet mode access over the PSTN. It also specifies how to use the lower layers protocols defined by ETS 300 080 [7].