1 Scope
2
Abbreviations and definitions
3
General
4
Addressed call and/or answer authorized by the DTE (circuit 108/2)
4.1 Interface procedure
4.2 Interface procedures at the calling data station
4.3 Interface
procedures at the answering data station
5
Direct call and/or answer controlled by the DTE (circuit 108/1)
5.1 Interchange circuits involved
5.2 Interface procedure at the calling data station
5.3 Interface procedure at
the answering data station
6
Line procedures
6.1 Line procedure at the calling DCE
6.2 Line procedure at the answering DCE
7
Manual calling and answering
8
Use of V.25 ter commands and
indications
Annex A – Test facilities
A.1 DCE self-test stage
A.2 DCE test with maintenance centre
Annex B – SDL Description of the
addressed call – 108/2 Response Mode
Appendix I – General description of the V.25 bis command/indication syntax