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ETSI ETR 186-1
M00000260
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ETSI ETR 186-1 Intelligent Network (IN); Interaction between IN Application Protocol (INAP) and Integrated Services Digital Network (ISDN) signalling protocols; Part 1: Switching signalling requirements for IN Capability Set 1 (CS1) service support in a Narrowband ISDN (N-ISDN) environment
standard by European Telecommunications Standards Institute, 09/01/1995
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