ETSI EN 300 141-4

ETSI EN 300 141-4
ETSI EN 300 141-4 English PDF Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user

standard published 05/01/2000 by European Telecommunications Standards Institute

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To handle comments and incorporate appropriate corrections into the ATS of DSS1 L2

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