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ETSI - European Telecommunication Standard Institute(ETSI) produces globally-applicable standards for information and telecommunication technologies (ICT) including land, mobile, radio, converged, broadcast and internet technologies.
Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Speech codec list for GSM and UMTS (3GPP TS 26.103 version 17.0.0 Release 17)
Standard published on 3.5.2022
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Speech codec list for GSM and UMTS (3GPP TS 26.103 version 18.0.0 Release 18)
Standard published on 22.5.2024
Selected format:Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Speech codec list for GSM and UMTS (3GPP TS 26.103 version 19.0.0 Release 19)
Standard published on 24.10.2025
Selected format:Universal Mobile Telecommunications System (UMTS); Speech Codec List for GSM and UMTS (3G TS 26.103 version 3.0.0 Release 1999)
Standard published on 28.1.2000
Selected format:Universal Mobile Telecommunications System (UMTS); Speech Codec List for GSM and UMTS (3GPP TS 26.103 version 3.1.0 Release 1999)
Standard published on 31.12.2001
Selected format:Universal Mobile Telecommunications System (UMTS); Speech codec list for GSM and UMTS (3GPP TS 26.103 version 3.2.0 Release 1999)
Standard published on 30.6.2002
Selected format:Universal Mobile Telecommunications System (UMTS); Speech Codec List for GSM and UMTS (3GPP TS 26.103 version 4.1.0 Release 4)
Standard published on 31.3.2001
Selected format:Universal Mobile Telecommunications System (UMTS); Speech Codec List for GSM and UMTS (3GPP TS 26.103 version 4.2.0 Release 4)
Standard published on 31.12.2001
Selected format:Universal Mobile Telecommunications System (UMTS); Speech codec list for GSM and UMTS (3GPP TS 26.103 version 4.3.0 Release 4)
Standard published on 30.6.2002
Selected format:Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Speech codec list for GSM and UMTS (3GPP TS 26.103 version 4.4.0 Release 4)
Standard published on 31.12.2004
Selected format:Latest update: 2026-09-15 (Number of items: 2 301 408)
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