Integrated Services Digital Network (ISDN); Completion of Calls to Busy Subscriber (CCBS) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 4: Abstract test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user
PUBLISHED ETS 300 359-4 V1.4.1:1997 60.60
Standard published Jul 7, 2014
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Adopted from
EN 300 359-4 V1.4.1:1997
IDENTICAL
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