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ITU There are 5320 products.
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ITU-T Q.152
ITU-T Q.152 End-of-pulsing conditions; Register arrangements concerning ST (end of pulsing) signal
$12.50 $25.00 -50%Reduced price!In Stock -
ITU-T Q.142
ITU-T Q.142 Double seizing with both-way operation
$12.50 $25.00 -50%Reduced price!In Stock -
ITU-T Q.466
ITU-T Q.466 Supervision and release of the call
$12.50 $25.00 -50%Reduced price!In Stock -
ITU-T Q.330
ITU-T Q.330 Automatic transmission and signalling testing
$12.50 $25.00 -50%Reduced price!In Stock -
ITU-T Q.474
ITU-T Q.474 Termination of interregister signalling; Use of group B signals
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ITU-T Q.161
ITU-T Q.161 General arrangements for manual testing
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ITU-T F Supplement 1 II.4
ITU-T F Supplement 1 II.4 Definitions relating to telegraph, telematic and data transmission services
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ITU-T Q.287
ITU-T Q.287 Signal transfer time requirements
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ITU-T Q.252
ITU-T Q.252 Functional description of the signalling system; Signal transfer time definitions
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