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ETSI EN 300 286-6
M00000019
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ETSI EN 300 286-6 Integrated Services Digital Network (ISDN); User-to-User Signalling (UUS) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 6: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the ne
standard by European Telecommunications Standards Institute, 12/01/1998
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