ETSI EN 300 064-6
- Integrated Services Digital Network (ISDN); Direct Dialling In (DDI) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (
- standard by European Telecommunications Standards Institute, 11/01/1999
- Publisher: ETSI
$50.00$99.00
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