Rec. ITU-T U.208 (03/1993) … THE INTERNATIONAL TELEX SERVICE - INTERWORKING WITH THE INMARSAT C SYSTEM USING ONE-STAGE ...
FOREWORD
CONTENTS
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