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FORD WK902 2020 Edition, October 6,...
ITU-T E.275 Transmission in encoded form of monthly international accounting information
ITU-T Q.457 Range, speed and reliability of interregister signalling; Range of interregister signalling
ITU-T Q.133 Numbering for access to automatic measuring and testing devices
ITU-T Q.268 Release of international connections and associated equipment
ITU-T Q.464 Signalling between the outgoing international R2 register and the last incoming R2 register