CCITT Rec. F.60 (11/1988) – OPERATIONAL PROVISIONS FOR THE INTERNATIONAL TELEX SERVICE
1 Introduction
    1.1 Scope
    1.2 Definitions
    1.3 International telex circuits – Routes
    1.4 Duration of service – Legal time
2 Classes of telex call
    2.1 General
    2.2 Service telex calls
    2.3 Government telex calls (manual and semi-automatic service only)
3 Operation of the telex service
    3.1 Operating systems
    3.2 Automatic operation
    3.3 Semi-automatic and manual operation
    3.4 Characteristics of subscribers' equipment
    3.5 Restriction on the use of a telex station
    3.6 Subscribers' operating procedure for telex calls
    3.7 Directories
4 Miscellaneous provisions
    4.1 Code expressions used in the international telex service
    4.2 Printing of telex numbers
ANNEX A – Operating procedure for telex calls
A.1 Setting up a telex call
A.2 Setting out the message
A.3 Additional instructions
A.4 Ineffective call attempts when calling from a manual terminal
References