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ITU There are 5339 products.
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ITU-T Q.293
ITU-T Q.293 Security arrangements; Intervals at which security measures are to be invoked; Changeover and changeback procedures; Emergency restart procedure; Full-time synchronized reserve links; Load sharing method
$25.00In Stock -
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ITU-T Q.454
ITU-T Q.454 Multifrequency signalling equipment; The sending part of the multifrequency signalling equipment
$25.00In Stock -
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ITU-T Q.130
ITU-T Q.130 Special arrangements in case of failures in the sequence of signals
$25.00In Stock -
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ITU-T Q.266
ITU-T Q.266 Blocking and unblocking sequences and control of quasi-associated signalling
$25.00In Stock -
ITU-T Q.462
ITU-T Q.462 Signalling between the outgoing international R2 register and an incoming R2 register in an international exchange
$25.00In Stock
