ETSI PRETS 300 171-1992 Private Telecommunications Network (PTN); Specification, Functional Model and Information Flows Control Aspects of Circuit Mode Basic Services
European Telecommunications Standards Institute (ETSI)
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ETSI PRETS 300 171-1992
ETSI PRETS 300 171-1992 history
1992ETSI PRETS 300 171-1992 Private Telecommunications Network (PTN); Specification, Functional Model and Information Flows Control Aspects of Circuit Mode Basic Services
1991ETSI PRETS 300 171-1991 Specification, Functional Model and Information Flows for Control Aspects of Circuit Mode Basic Services in Private Telecommunications Networks