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ETSI I-ETS 300 315
M00000511
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ETSI I-ETS 300 315 Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. one (DSS1); Protocol Implementation Conformance Statement (PICS) proforma specification for signalling network layer protocol for circuit-mode basic call control (primary rate access, user)
standard by European Telecommunications Standards Institute, 12/01/1994
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