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ETSI ETS 300 058-1/C1
M00000682
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ETSI ETS 300 058-1/C1 Corrigendum to - Integrated Services Digital Network (ISDN); Call Waiting (CW) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol Specification
Corrigenda by European Telecommunications Standards Institute, 04/01/1994
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