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ITU-T E.300 Supplement 6
ITU-T E.300 Supplement 6 Preparation...
ITU There are 5320 products.
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ITU-T I.241.6
ITU-T I.241.6 Teleservices supported by an ISDN : Telex
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ITU-T I.252.6
ITU-T I.252.6 Call offering supplementary services : Line Hunting (LH)
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ITU-T I.252.1
ITU-T I.252.1 Call offering supplementary services : Call Transfer
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ITU-T E.100
ITU-T E.100 Definitions of terms used in international telephone operation
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ITU-T E.110
ITU-T E.110 Organization of the international telephone network
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ITU-T E.112
ITU-T E.112 Arrangements to be made for controlling the telephone services between two countries
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ITU-T E.111
ITU-T E.111 Extension of international telephone services
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ITU-T E.114
ITU-T E.114 Supply of lists of subscribers (directories and other means)
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ITU-T E.122
ITU-T E.122 Measures of reduce customer difficulties in the international telephone service
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ITU-T E.120
ITU-T E.120 Instructions for users of the international telephone service
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ITU-T E.124
ITU-T E.124 Discouragement of frivolous international calling to unassigned or vacant numbers answered by recording announcements without charge
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ITU-T E.126
ITU-T E.126 Harmonization of the general information pages of the telephone directories published by administrations
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