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ITU There are 5339 products.
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ITU-T Q.617
ITU-T Q.617 Logic procedures for incoming signalling system No. 7 (ISUP)
$25.00In Stock -
ITU-T Q.624
ITU-T Q.624 Interworking of signalling systems - Logic procedures for outgoing signalling system No. 7 (TUP)
$25.00In Stock -
ITU-T Q.627
ITU-T Q.627 Interworking of signalling systems - Logic procedures for outgoing signalling system No. 7 (ISUP)
$25.00In Stock -
ITU-T Q.675
ITU-T Q.675 Interworking of signalling systems - Logic procedures for interworking of signalling system R1 to signalling system No. 7 (ISUP)
$25.00In Stock -
ITU-T Q.766
ITU-T Q.766 Performance objectives in the Integrated Services Digital Network application
$25.00In Stock -
ITU-T Q.930
ITU-T Q.930 Digital subscriber signalling system No. 1 (DSS 1) - ISDN user-network interface layer 3 - General aspects
$25.00In Stock -
ITU-T Q.953.2
ITU-T Q.953.2 Stage 3 description for call completion supplementary services using DSS 1 : Call hold
$25.00In Stock -
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ITU-T U.1
ITU-T U.1 Signalling conditions to be applied in the international telex service
$25.00In Stock
