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ITU-T Q.642
ITU-T Q.642 Logic procedures for interworking of signalling system No. 5 to No. 6
$25.00In Stock -
ITU-T Q.643
ITU-T Q.643 Logic procedures for interworking of signalling system No. 5 to No. 7 (TUP)
$25.00In Stock -
ITU-T Q.644
ITU-T Q.644 Logic procedures for interworking of signalling system No. 5 to R1
$25.00In Stock -
ITU-T Q.645
ITU-T Q.645 Logic procedures for interworking of signalling system No. 5 to R2
$25.00In Stock -
ITU-T Q.652
ITU-T Q.652 Logic procedures for interworking of signalling system No. 6 to No. 5
$25.00In Stock -
ITU-T Q.653
ITU-T Q.653 Logic procedures for interworking of signalling system No. 6 to No. 7 (TUP)
$25.00In Stock -
ITU-T Q.654
ITU-T Q.654 Logic procedures for interworking of signalling system No. 6 to R1
$25.00In Stock -
ITU-T Q.655
ITU-T Q.655 Logic procedures for interworking of signalling system No. 6 to R2
$25.00In Stock -
ITU-T Q.662
ITU-T Q.662 Logic procedures for interworking of signalling system No. 7 (TUP) to No. 5
$25.00In Stock -
ITU-T Q.663
ITU-T Q.663 Logic procedures for interworking of signalling system No. 7 (TUP) to No. 6
$25.00In Stock -
ITU-T Q.664
ITU-T Q.664 Logic procedures for interworking of signalling system No. 7 (TUP) to No. 7 (TUP)
$25.00In Stock -
ITU-T Q.665
ITU-T Q.665 Logic procedures for interworking of signalling system No. 7 (TUP) to R1
$25.00In Stock
