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Preview ETSI TS 123135-V12.0.0 10.10.2014
ETSI TS 123135-V12.0.0

Universal Mobile Telecommunications System (UMTS); LTE; Multicall supplementary service; Stage 2 (3GPP TS 23.135 version 12.0.0 Release 12)

Standard published on 10.10.2014

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Preview ETSI TS 123135-V13.0.0 18.1.2016
ETSI TS 123135-V13.0.0

Universal Mobile Telecommunications System (UMTS); LTE; Multicall supplementary service; Stage 2 (3GPP TS 23.135 version 13.0.0 Release 13)

Standard published on 18.1.2016

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Preview ETSI TS 123135-V14.0.0 3.4.2017
ETSI TS 123135-V14.0.0

Universal Mobile Telecommunications System (UMTS); LTE; Multicall supplementary service; Stage 2 (3GPP TS 23.135 version 14.0.0 Release 14)

Standard published on 3.4.2017

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Preview ETSI TS 123135-V15.0.0 3.7.2018
ETSI TS 123135-V15.0.0

Universal Mobile Telecommunications System (UMTS); LTE; Multicall supplementary service; Stage 2 (3GPP TS 23.135 version 15.0.0 Release 15)

Standard published on 3.7.2018

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Preview ETSI TS 123135-V16.0.0 20.7.2020
ETSI TS 123135-V16.0.0

Universal Mobile Telecommunications System (UMTS); LTE; Multicall supplementary service; Stage 2 (3GPP TS 23.135 version 16.0.0 Release 16)

Standard published on 20.7.2020

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Preview ETSI TS 123135-V17.0.0 20.4.2022
ETSI TS 123135-V17.0.0

Universal Mobile Telecommunications System (UMTS); LTE; Multicall supplementary service; Stage 2 (3GPP TS 23.135 version 17.0.0 Release 17)

Standard published on 20.4.2022

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Preview ETSI TS 123135-V18.0.0 14.5.2024
ETSI TS 123135-V18.0.0

Universal Mobile Telecommunications System (UMTS); LTE; Multicall supplementary service; Stage 2 (3GPP TS 23.135 version 18.0.0 Release 18)

Standard published on 14.5.2024

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Preview ETSI TS 123135-V19.0.0 15.10.2025
ETSI TS 123135-V19.0.0

Universal Mobile Telecommunications System (UMTS); LTE; Multicall supplementary service; Stage 2 (3GPP TS 23.135 version 19.0.0 Release 19)

Standard published on 15.10.2025

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Preview ETSI TS 123135-V3.0.0 31.3.2000
ETSI TS 123135-V3.0.0

Universal Mobile Telecommunications System (UMTS); Multicall; Stage 2 (3G TS 23.135 version 3.0.0 Release 1999)

Standard published on 31.3.2000

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Preview ETSI TS 123135-V3.1.0 22.6.2000
ETSI TS 123135-V3.1.0

Universal Mobile Telecommunications System (UMTS); Multicall supplementary service - Stage 2 (3G TS 23.135 version 3.1.0 Release 1999)

Standard published on 22.6.2000

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