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ITU There are 5320 products.
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ITU-T E.270
ITU-T E.270 Monthly telephone and telex accounts
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ITU-T Abbreviations (00/88)
ITU-T Abbreviations (00/88) List of abbreviations and acronyms
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ITU-T Q.455
ITU-T Q.455 Multifrequency signalling equipment; the receiving part of the multifrequency equipment
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ITU-T Q.317
ITU-T Q.317 Further specification clauses relative to line signalling
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ITU-T Q.131
ITU-T Q.131 Abnormal release conditions of the outgoing register causing release of the international circuit
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ITU-T Q.267
ITU-T Q.267 Unreasonable and superfluous messages
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ITU-T Q.463
ITU-T Q.463 Signalling between the outgoing international R2 register and an incoming R2 register in a national exchange in the destination country
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ITU-T Q.274
ITU-T Q.274 Transmission methods; Modem and interface requirements
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