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ETSI TS 144 057
M00005061
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ETSI TS 144 057 Digital cellular telecommunications system (Phase 2+); GSM Cordless Telephony System (CTS), Phase 1; CTS supervising system layer 3 specification (3GPP TS 44.057 version 9.0.0 Release 9)
standard by European Telecommunications Standards Institute, 01/01/2010
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