scope:

This ETS specifies the upper layers of the communications protocol employed in the group 4 class 1 facsimile communication procedures, i.e. the session layer and above.

This ETS is based upon CCITT Recommendations:

T.503 [1] "A document application profile for the interchange of group 4 facsimile documents" (the document application profile (DAP));

T.521 [2] "Communication application profile BT0 for document bulk transfer based on the session service (according to the rules in T.62bis)" (the communication application profile (CAP)),

as derived from the T.400 series of CCITT Recommendations (Document Architecture, Transfer and Manipulation) and other recommendations referred to therein.

This ETS is closely related to 4 other ETSs on group 4 class 1 facsimile equipment:

ETS 300 080 [3] "Integrated Services Digital Network (ISDN); Lower layer protocols for telematic terminals".

prETS 300 155 [4] "Integrated Services Digital Network (ISDN); Facsimile group 4 class 1 equipment on the ISDN, End-to-end protocols tests (interconnection capability testing)".

ETS 300 087 [5] "Integrated Services Digital Network (ISDN); Facsimile group 4 class 1 equipment on the ISDN, Functional specification of the equipment".

ETS 300 280 [6] "Integrated Services Digital Network (ISDN); Facsimile group 4 class 1 equipment on the ISDN, Terminal testing".