1 Scope
2
Outline of service features
2.2 Service principles
3
Outline of facilities
3.2 Message input access
3.3 Status enquiry access
4
Access procedures
4.1 General
4.2 Telex access
4.3 Message reference information
4.4 Service request
4.5 Calling telex address
4.6 Commence input signal
4.7 Address input
4.8 Called address validation
4.9 Message input
4.10 End of message (EOM) signal
4.11 End of transaction (EOT)
4.12 Input transaction accepted for delivery signal (ITD)
5
Status enquiry
5.1 Status enquiry request
5.2 The status report
6
Abnormal conditions during message input
6.1 Telex subscriber clearing during text input without EOT
6.2 Telex subscriber stopping transmission for a certain time
without transmitting the EOT signal, or transmitting a partial or invalid EOT
signal
6.3 Telex subscriber sending WRU to the SFU during text input
6.4 Telex subscriber sending text after the EOT signal
6.5 Telex subscriber clearing after EOT, but before ITD
6.6 Telex subscriber
sending national variants of ITA No. 2 Alphabet (F, G, H)
6.7 Telex subscriber sending J. Bell combination (J)
6.8 SFU storage capacity overflow during telex message input
6.9 Maximum input duration exceeded
6.10 Repeated characters during message input