ETSI EN 300 058-6
- Final draft Version 1.4.1Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSS1) protocol; Call Waiting (CW) supplementary service; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Informa
- standard by European Telecommunications Standards Institute, 12/01/2001
- Publisher: ETSI
$58.00$115.50
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