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ETSI TS 123 081
M00000947
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ETSI TS 123 081 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Line Identification supplementary services; Stage 2 (3GPP TS 23.081 version 5.2.0 Release 5)
standard by European Telecommunications Standards Institute, 03/01/2003
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