Release Rel-15
5G NRThe foundational 5G New Radio release, defining the NR air interface and 5G core.
Frozen 2018-06-14137 specifications in series 26
Key features: First 5G NR specifications, NSA and SA architectures
All SeriesSeries 21Series 22Series 23Series 24Series 26Series 27Series 28Series 29Series 31Series 32Series 33Series 34Series 35Series 36Series 37Series 38
TS 26.140
Multimedia Messaging Service (MMS); Media formats and codecs
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.141
IP Multimedia System (IMS) Messaging and Presence; Media formats and codecs
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.142
Dynamic and Interactive Multimedia Scenes (DIMS)
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.150
Syndicated Feed Reception (SFR) within 3GPP environments; Protocols and codecs
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.171
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; General description
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.173
ANSI-C code for the Adaptive Multi-Rate - Wideband (AMR-WB) speech codec
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.174
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec test sequences
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.177
Speech Enabled Services (SES); Distributed Speech Recognition (DSR) extended advanced front-end test sequences
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.179
Mission Critical Push To Talk (MCPTT); Codecs and media handling
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.190
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Transcoding functions
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.191
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Error concealment of erroneous or lost frames
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.192
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Comfort noise aspects
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.193
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Source controlled rate operation
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.194
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Voice Activity Detector (VAD)
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.201
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Frame structure
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.202
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Interface to Iu, Uu and Nb
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.204
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; ANSI-C code
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.223
Telepresence using the IP Multimedia Subsystem (IMS); Media handling and interaction
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.226
Cellular text telephone modem; General description
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26
TS 26.230
Cellular text telephone modem; Transmitter bit exact C-code
Codecs & Media
Rel-15TSCodecs & MediaUpdated 2026-07-26