ETSI EN 300 138-6
- Final draft Version 1.5.1Integrated Services Digital Network (ISDN); Closed User Group (CUG) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra I
- standard by European Telecommunications Standards Institute, 12/01/2001
- Publisher: ETSI
$75.00$150.50
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