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ETSI TS 144 057
M00005315
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ETSI TS 144 057 Digital cellular telecommunications system (Phase 2+); GSM Cordless Telephony System (CTS), (Phase 1) CTS CTS supervising system Layer 3 Specification (3GPP TS 44.057 version 8.0.0 Release 8)
standard by European Telecommunications Standards Institute, 01/01/2009
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