1 Scope
2
Abbreviations and definitions
3
Interface procedures at call-originating data station
4
Interface procedure at answering data station
5
Proposed line procedures
6
Manually controlled modem calling automatically controlled modem
7
Automatically controlled calling modem calling manually controlled modem
8
Disabling of echo suppressors in the case of manually operated data
stations
9
Notification to ordinary telephone users
10 Manual selection of automatic
answering, data mode and voice mode
11 2100 Hz tone recognition
References