CCITT Rec. F.126 (11/1988) – SELECTION PROCEDURES FOR THE INMARSAT MOBIILE-SATELLITE TELEX SERVICE
1 Introduction
    1.1 Purpose
    1.2 Related CCITT Recommendations
2 Numbering procedures
3 Procedures for shore-to-ship calls
    3.1 General selection sequence
    3.2 Selection of S digit
    3.3 INMARSAT mobile number
4 Procedures for ship-to-shore calls
    4.1 General
    4.2 Calling a terrestrial subscriber
    4.3 Calling an operator
    4.4 Other access codes in Annex A
5 Procedures for ship-to-ship calls
6 Instructions for telex subscribers
7 Instructions for users at ship earth stations
ANNEX A – Allocation of telephone prefixes, telex access codes and data transmission prefixes
ANNEX B – Application of telephone prefixes, data transmission prefixes and telex access codes – Definitions and descriptions
B.1 Operator
B.2 Automatic facilities
B.3 Specialized assistance
B.4 Ship reporting
B.5 Information retrieval services (prefixes 5x)
B.6 Specialized use (prefixes 6x)
B.7 (Prefixes 7x are reserved for future use.)
B.8 (Prefixes 8x are reserved for future use.)
B.9 Test