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ITU-T - U.12

Terminal and Transit Control Signalling System for Telex and Similar Services on International Circuits (Type D Signalling) - Telegraph Switching (Study Group IX) 26 pp

inactive
Organization: ITU-T
Publication Date: 1 January 1989
Status: inactive
Page Count: 28

Document History

January 1, 1993
Terminal and Transit Control Signalling System for Telex and Similar Services on International Circuits (Type D Signalling) - Telegraph Switching Specific Signalling Schemes and Interworking Between Signalling Systems (Study Group IX) 28 pp
A description is not available for this item.
U.12
January 1, 1989
Terminal and Transit Control Signalling System for Telex and Similar Services on International Circuits (Type D Signalling) - Telegraph Switching (Study Group IX) 26 pp
A description is not available for this item.
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