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ITU There are 5339 products.
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ITU-T Q.442
ITU-T Q.442 Interregister signalling; Pulse transmission of backward signals A-3, A-4, A-6 or A-15
$25.00In Stock -
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ITU-T E.231
ITU-T E.231 Charging in automatic service for calls terminating on special services for suspended, cancelled or transferred subscribers
$25.00In Stock -
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ITU-T Abbreviations (00/88)
ITU-T Abbreviations (00/88) List of abbreviations and acronyms
$25.00In Stock -
ITU-T Q.455
ITU-T Q.455 Multifrequency signalling equipment; the receiving part of the multifrequency equipment
$25.00In Stock -
ITU-T Q.131
ITU-T Q.131 Abnormal release conditions of the outgoing register causing release of the international circuit
$25.00In Stock
