ETSI EN 300 369-4
- Final draft Version 1.3.1Integrated Services Digital Network (ISDN); Explicit Call Transfer (ECT) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eX
- standard by European Telecommunications Standards Institute, 01/01/2002
- Publisher: ETSI
$85.00$169.50
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