1 Introduction
2
Scope
3
Methods of interworking
4
Access procedures from the international telex service
4.1 Call establishment
4.2 Determination of the calling telex address
5
Message deposit
6
Clearing
7
Reaction of MSSFU to abnormal conditions during message input
7.1 Receipt of non-processable answerback
7.2 Pause during input of message text
7.3 Receipt of WRU signal during text input
7.4 Receipt of national
variants of telex characters (Combinations 6, 7, 8 in figures case)
7.5 Receipt of ITA2 combination 10 in figures case (Bell signal)
7.6 Lack of storage capacity during message input
7.7 Clear by the telex subscriber without the EOT signal
7.8 Receipt of characters after the EOT signal
7.9 Receipt of clear signal after the EOT signal but before the
ITD sequence
7.10 Service provided by the INMARSAT C system unavailable
8
Message delivery
9
Delivery notifications
9.1 Non-delivery notification
10 Calls from MES to a subscriber of
the international telex service
11 MES-to-MES calls utilizing the
international telex service