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ETSI TS 144 057
M00001125
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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 5.0.0 Release 5)
standard by European Telecommunications Standards Institute, 06/01/2002
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