2 References

26.1143GPPIP Multimedia Subsystem (IMS)Media handling and interactionMultimedia telephonyRelease 18TS

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.

– References are either specific (identified by date of publication, edition number, version number, etc.) or non‑specific.

– For a specific reference, subsequent revisions do not apply.

– For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.

[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".

[2] 3GPP TS 22.173: "IP Multimedia Core Network Subsystem (IMS) Multimedia Telephony Service and supplementary services; Stage 1".

[3] 3GPP TS 26.235: "Packet switched conversational multimedia applications; Default codecs".

[4] 3GPP TS 26.236: "Packet switched conversational multimedia applications; Transport protocols".

[5] 3GPP TR 26.914: "Multimedia telephony over IP Multimedia Subsystem (IMS); Optimization opportunities".

[6] 3GPP TR 22.973: "IMS Multimedia Telephony service; and supplementary services".

[7] 3GPP TS 24.229: "IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3".

[8] IETF RFC 4566 (2006): "SDP: Session Description Protocol", M. Handley, V. Jacobson and C. Perkins.

[9] IETF RFC 3550 (2003): "RTP: A Transport Protocol for Real-Time Applications", H. Schulzrinne, S. Casner, R. Frederick and V. Jacobson.

[10] IETF RFC 3551 (2003): "RTP Profile for Audio and Video Conferences with Minimal Control", H. Schulzrinne and S. Casner.

[11] 3GPP TS 26.071: "Mandatory Speech Codec speech processing functions; AMR Speech CODEC; General description".

[12] 3GPP TS 26.090: "Mandatory Speech Codec speech processing functions; Adaptive Multi-Rate (AMR) speech codec; Transcoding functions".

[13] 3GPP TS 26.073: "ANSI C code for the Adaptive Multi Rate (AMR) speech codec".

[14] 3GPP TS 26.104: "ANSI‑C code for the floating-point Adaptive Multi Rate (AMR) speech codec".

[15] 3GPP TS 26.093: "Mandatory speech codec speech processing functions; Adaptive Multi-Rate (AMR) speech codec; Source controlled rate operation".

[16] 3GPP TS 26.103: "Speech codec list for GSM and UMTS".

[17] 3GPP TS 26.171: "Speech codec speech processing functions; Adaptive Multi-Rate – Wideband (AMR-WB) speech codec; General description".

[18] 3GPP TS 26.190: "Speech codec speech processing functions; Adaptive Multi-Rate – Wideband (AMR-WB) speech codec; Transcoding functions".

[19] 3GPP TS 26.173: "ANCI-C code for the Adaptive Multi Rate – Wideband (AMR-WB) speech codec".

[20] 3GPP TS 26.204: "Speech codec speech processing functions; Adaptive Multi-Rate – Wideband (AMR-WB) speech codec; ANSI-C code".

[21] 3GPP TS 26.193: "Speech codec speech processing functions; Adaptive Multi-Rate – Wideband (AMR-WB) speech codec; Source controlled rate operation".

[22] Void.

[23] Void.

[24] Recommendation ITU-T H.264 (04/2017): "Advanced video coding for generic audiovisual services" | ISO/IEC 14496-10:2014: "Information technology – Coding of audio-visual objects – Part 10: Advanced Video Coding".

[25] IETF RFC 6184 (2011): "RTP Payload Format for H.264 Video", Y.-K. Wang, R. Even, T. Kristensen, R. Jesup.

[26] ITU-T Recommendation T.140 (02/1998): "Protocol for multimedia application text conversation".

[27] ITU-T Recommendation T.140 (02/2000): "Protocol for multimedia application text conversation – Addendum 1".

[28] IETF RFC 4867 (2007): "RTP Payload Format and File Storage Format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs", J. Sjoberg, M. Westerlund, A. Lakaniemi and Q. Xie.

[29] Void

[30] Void.

[31] IETF RFC 4103 (2005): "RTP Payload for Text Conversation", G. Hellstrom and P. Jones.

[32] Void.

[33] 3GPP TR 25.993: "Typical examples of Radio Access Bearers (RABs) and Radio Bearers (RBs) supported by Universal Terrestrial Radio Access (UTRA)".

[34] 3GPP TS 22.105: "Services and service capabilities".

[35] 3GPP TS 26.131: "Terminal acoustic characteristics for telephony; Requirements".

[36] 3GPP TS 26.132: "Speech and video telephony terminal acoustic test specification".

[37] 3GPP TS 28.062: "Inband Tandem Free Operation (TFO) of speech codecs; Service description; Stage 3".

[38] 3GPP TS 23.153: "Out of band transcoder control; Stage 2".

[39] IETF RFC 0768 (1980): "User Datagram Protocol", J. Postel.

[40] IETF RFC 4585 (2006): "Extended RTP Profile for Real-time Transport Control Protocol (RTCP) – Based Feedback (RTP/AVPF)", J. Ott, S. Wenger, N. Sato, C. Burmeister and J. Rey.

[41] RTP Tools: http://www.cs.columbia.edu/IRT/software/rtptools/.

[42] IETF RFC 3556 (2003): "Session Description Protocol (SDP) Bandwidth Modifiers for RTP Control Protocol (RTCP) Bandwidth", S. Casner.

[43] IETF RFC 5104 (2008): "Codec Control Messages in the RTP Audio-Visual Profile with Feedback (AVPF)", S. Wenger, U. Chandra, M. Westerlund and B. Burman.

[44] Void.

[45] 3GPP TS 26.111: "Codec for circuit switched multimedia telephony service; Modifications to H.324".

[46] 3GPP TS 23.172: "Technical realization of Circuit Switched (CS) multimedia service; UDI/RDI fallback and service modification; Stage 2".

[47] 3GPP TS 23.002: "Network Architecture".

[48] IETF RFC 3388 (2002): "Grouping of Media Lines in the Session Description Protocol (SDP)", G. Camarillo, G. Eriksson, J. Holler and H. Schulzrinne.

[49] IETF RFC 4102 (2005): "Registration of the text/red MIME Sub-Type", P. Jones.

[50] ITU-T H.248 (06/2000): "Packages for text conversation, fax and call discrimination".

[51] ETSI EG 202 320, v1.2.1 (2005-10): "Human Factors (HF); Duplex Universal Speech and Text (DUST) communications".

[52] 3GPP TS 26.226: "Cellular text telephone modem; General description".

[53] IETF RFC 4504 (2006): "SIP Telephony Device Requirements and Configuration", H. Sinnreich, Ed., S. Lass and C. Stredicke.

[54] ITU-T Recommendation V.151 (05/2006): "Procedures for end-to-end connection of analogue PSTN text telephones over an IP network utilizing text relay".

[55] ITU-T Recommendation V.152 (09/2010): "Procedures for supporting Voice Band Data over IP networks".

[56] IETF RFC 3448 (2003): "TCP Friendly Rate Control (TFRC): Protocol Specification", M. Handley, S. Floyd, J. Padhye and J. Widmer.

[57] 3GPP TS 24.173: "IMS Multimedia Telephony Communication Service and Supplementary Services".

[58] IETF RFC 3264 (2002): "An Offer/Answer Model with the Session Description Protocol (SDP)", J. Rosenberg and H. Schulzrinne.

[59] 3GPP TS 26.141: "IP Multimedia System (IMS) Messaging and Presence; Media formats and codecs".

[60] 3GPP TS 26.234: "Transparent end-to-end Packet-switched Streaming Service; Protocols and codecs".

[61] IETF RFC 4733 (2006): "RTP Payload for DTMF Digits, Telephony Tones, and Telephony Signals", H. Schulzrinne and T.Taylor.

[62] 3GPP TS 23.014: "Support of Dual Tone Multi-Frequency (DTMF) signalling".

[63] ETSI ES 201 235-2, v1.2.1: "Specification of Dual Tone Multi-Frequency (DTMF); Transmitters and Receivers; Part 2: Transmitters".

[64] 3GPP TS 23.107: "Quality of Service (QoS) concept and architecture".

[65] 3GPP TS 29.163: "Interworking between the IP Multimedia (IM) Core Network (CN) subsystem and Circuit Switched (CS) networks".

[66] Void.

[67] OMA-ERELD-DM-V1_2-20070209-A: "Enabler Release Definition for OMA Device Management, Approved Version 1.2".

[68] Void.

[69] IETF RFC 5939 (2010): "Session Description Protocol (SDP) Capability Negotiation", F. Andreasen.

[70] Void

[71] IETF RFC 1952 (May 1996): "GZIP file format specification version 4.3", P. Deutsch.

[72] IETF RFC 2326 (1998): "Real Time Streaming Protocol (RTSP)".

[73] IETF RFC 2616 (June 1999): "Hypertext Transfer Protocol — HTTP/1.1".

[74] 3GPP TS 26.346 "Multimedia Broadcast/Multicast Service (MBMS); Protocols and codecs".

[75] Void

[76] IETF RFC 6236 (2011): "Negotiation of Generic Image Attributes in the Session Description Protocol (SDP)", I. Johansson and K. Jung.

[77] ITU-T G.711 (11/1988): "Pulse code modulation (PCM) of voice frequencies".

[78] ITU-T G.722 (09/2012): "7 kHz audio-coding within 64 kbit/s".

[79] IETF RFC 4821 (2007): "Packetization Layer Path MTU Discovery".

[80] 3GPP TS 23.003: "Numbering, addressing and identification".

[81] IETF RFC 4796 (2007): "The Session Description Protocol (SDP) Content Attribute", J. Hautakorpi and G. Camarillo.

[82] 3GPP TS 24.247: "Messaging service using the IP Multimedia (IM) Core Network (CN) subsystem".

[83] IETF RFC 3168 (2001): "The Addition of Explicit Congestion Notification (ECN) to IP", K. Ramakrishnan, S. Floyd and D. Black.

[84] IETF RFC 6679 (2012): "Explicit Congestion Notification (ECN) for RTP over UDP", M. Westerlund, et. al.

[85] 3GPP TS 36.300: "Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description".

[86] Void

[87] IETF RFC 5506 (2009): "Support for Reduced-Size Real-Time Transport Control Protocol (RTCP): Opportunities and Consequences".

[88] IETF RFC 3611 (2003): "RTP Control Protocol Extended Reports (RTCP XR) ", T. Friedman, R. Caceres and A. Clark.

[89] 3GPP TS 25.401: "UTRAN overall description".

[90] 3GPP TS 23.203: "Policy and charging control architecture".

[91] ITU-T Recommendation T.4 (07/2003): "Standardization of Group 3 facsimile terminals for document transmission".

[92] ITU-T Recommendation T.30 (09/2005): "Procedures for document facsimile transmission in the general switched telephone network".

[93] ITU-T Recommendation T.38 (09/2010): "Procedures for real-time Group 3 facsimile communication over IP networks".

[94] IETF RFC 3362 (2002): "Real-time Facsimile (T.38) – image/t38 MIME Sub-type Registration".

[95] IETF RFC 5285 (2008): "A General Mechanism for RTP Header Extensions", D. Singer, H. Desineni.

[96] IETF RFC 5168 (2008): "XML Schema for Media Control", O. Levin, R. Even and P. Hagendorf.

[97] 3GPP2 C.S0055-A, version 1.0: "Packet Switched Video Telephony Service (PSVT/MCS)".

[98] ETSI TS 181 005, v3.3.1: "Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Service and Capability Requirements".

[99] 3GPP2 C.S0014-E, version 1.0: "Enhanced Variable Rate Codec (EVRC)".

[100] ITU-T Recommendation G.729 (06/2012): "Coding of speech at 8 kbit/s using conjugate-structure algebraic-code-excited linear prediction (CS-ACELP)".

[101] ITU-T Recommendation G.729.1 (05/2006): "G.729-based embedded variable bit-rate coder: An 8-32 kbit/s scalable wideband coder bitstream interoperable with G.729".

[102] 3GPP2 C.S0076, version 1.0: "Discontinuous Transmission (DTX) of Speech in cdma2000 Systems".

[103] IETF RFC 5188 (2008):"RTP Payload Format for the Enhanced Variable Rate Wideband Codec (EVRC-WB) and the Media Subtype Updates for EVRC-B Codec".

[104] IETF RFC 4749 (2006): "RTP Payload Format for the G.729.1 Audio Codec".

[105] IETF RFC 5459 (2009): "G.729.1 RTP Payload Format Update: Discontinuous Transmission (DTX) Support".

[106] IETF RFC 4788 (2007): "Enhancements to RTP Payload Formats for EVRC Family Codecs".

[107] IETF RFC 4855 (2007): "Media Type Registration of RTP Payload Formats".

[108] ITU-T Recommendation P.10 (07/2006): "Vocabulary and effects of transmission parameters on customer opinion of transmission quality".

[109] ETSI TS 103 737, v1.1.2: "Speech and multimedia Transmission Quality (STQ); Transmission requirements for narrowband wireless terminals (handset and headset) from a QoS perspective as perceived by the user".

[110] ETSI TS 103 738, v1.1.2: "Speech and multimedia Transmission Quality (STQ); Transmission requirements for narrowband wireless terminals (handsfree) from a QoS perspective as perceived by the user".

[111] ETSI TS 103 739, v1.1.2: "Speech and multimedia Transmission Quality (STQ); Transmission requirements for wideband wireless terminals (handset and headset) from a QoS perspective as perceived by the user".

[112] ETSI TS 103 740, v1.1.2: "Speech and multimedia Transmission Quality (STQ); Transmission requirements for wideband wireless terminals (handsfree) from a QoS perspective as perceived by the user".

[113] ETSI TS 202 737, v1.3.2: "Speech and multimedia Transmission Quality (STQ); Transmission requirements for narrowband VoIP terminals (handset and headset) from a QoS perspective as perceived by the user".

[114] ETSI TS 202 738, v1.3.2: "Speech and multimedia Transmission Quality (STQ); Transmission requirements for narrowband VoIP loudspeaking and handsfree terminals from a QoS perspective as perceived by the user".

[115] ETSI TS 202 739, v1.3.2: "Speech and multimedia Transmission Quality (STQ); Transmission requirements for wideband VoIP terminals (handset and headset) from a QoS perspective as perceived by the user ".

[116] ETSI TS 202 740, v1.3.2: "Speech and multimedia Transmission Quality (STQ); Transmission requirements for wideband VoIP loudspeaking and handsfree terminals from a QoS perspective as perceived by the user ".

[117] ETSI EN 300 175-8, v2.5.1: "Digital Enhanced Cordless Telecommunications (DECT); Common Interface (CI); Part 8: Speech and audio coding and transmission".

[118] ETSI TS 300 176-2, v2.2.1: "Digital Enhanced Cordless Telecommunications (DECT); Test specification; Part 2: Audio and speech".

[119] Recommendation ITU-T H.265: "High efficiency video coding" | ISO/IEC 23008-2:2020: "High Efficiency Coding and Media Delivery in Heterogeneous Environments – Part 2: High Efficiency Video Coding". [120] IETF RFC 7798 (2016): "RTP Payload Format for High Efficiency Video Coding (HEVC)", Y.-K. Wang, Y. Sanchez, T. Schierl, S. Wenger, M. M. Hannuksela.

[121] 3GPP TS 26.441: "Codec for Enhanced Voice Services (EVS); General Overview".

[122] 3GPP TS 26.442: "Codec for Enhanced Voice Services (EVS); ANSI C code (fixed-point)".

[123] 3GPP TS 26.443: "Codec for Enhanced Voice Services (EVS); ANSI C code (floating-point)".

[124] 3GPP TS 26.444: "Codec for Enhanced Voice Services (EVS); Test Sequences".

[125] 3GPP TS 26.445: "Codec for Enhanced Voice Services (EVS); Detailed Algorithmic Description".

[126] 3GPP TS 26.446: "Codec for Enhanced Voice Services (EVS); AMR-WB Backward Compatible Functions".

[127] 3GPP TS 26.447: "Codec for Enhanced Voice Services (EVS); Error Concealment of Lost Packets".

[128] 3GPP TS 26.448: "Codec for Enhanced Voice Services (EVS); Jitter Buffer Management".

[129] 3GPP TS 26.449: "Codec for Enhanced Voice Services (EVS); Comfort Noise Generation (CNG) Aspects".

[130] 3GPP TS 26.450: "Codec for Enhanced Voice Services (EVS); Discontinuous Transmission (DTX)".

[131] 3GPP TS 26.451: "Codec for Enhanced Voice Services (EVS); Voice Activity Detection (VAD)".

[132] 3GPP TS 45.003: "Radio Access Network; Channel coding".

[133] 3GPP TS 23.216: "Single Radio Voice Call Continuity (SRVCC); Stage2".

[134] 3GPP TS 23.237: "IP Multimedia Subsystem (IMS) Service Continuity; Stage2".

[135] ITU-T Recommendation H.224 (01/05): "A real time control protocol for simplex applications using the H.221 LSD/HSD/MLP channels ".

[136] ITU-T Recommendation H.224 (2005): Corrigendum 1 (08/07).

[137] ITU-T Recommendation H.281 (11/94): Transmission of non-telephone signals "A far end camera control protocol for videoconferences using H.224".

[138] ITU-T Recommendation H.323 (12/2009): "Packet-based multimedia communications systems".

[139] IETF RFC 4573 (2006): "MIME Type Registration for RTP Payload Format for H.224".

[140] IETF RFC 4588 (2006): "RTP Retransmission Payload Format", J. Rey, D. Leon, A. Miyazaki, V. Varsa and R. Hakenberg.

[141] IETF RFC 8627 (2019): "RTP Payload Format for Flexible Forward Error Correction (FEC)".

[142] TR 26.922: "Video Telephony Robustness Improvements Extensions (VTRI_EXT): Performance Evaluation".

[143] IETF RFC 5956 (2010): "Forward Error Correction Grouping Semantics in the Session Description Protocol", A. Cengiz.

[144] 3GPP TR 26.924: "Multimedia telephony over IP Multimedia Subsystem (IMS); Study on improved end-to-end Quality of Service (QoS) handling for Multimedia Telephony Service for IMS (MTSI)".

[145] Void

[146] Void.

[147] 3GPP TS 24.147: "Conferencing Using IP Multimedia Core Network; Stage 3".

[148] IETF RFC 4575 (2006): "A Session Initiation Protocol (SIP) Event Package for Conference State".

[149] IETF RFC 4582 (2006): "The Binary Floor Control Protocol (BFCP)".

[150] IETF RFC 4583 (2006): "Session Description Protocol (SDP) Format for Binary Floor Control (BFCP) Streams".

[151] Void.

[152] 3GPP TR 26.980: "Multimedia telephony over IP Multimedia Subsystem (IMS); Media handling aspects of multi-stream multiparty conferencing for Multimedia Telephony Service for IMS (MTSI)".

[153] IETF RFC 5234 (2008): "Augmented BNF for Syntax Specifications: ABNF", D. Crocker and P. Overell.

[154] IETF RFC 8853 (2021): "Using Simulcast in Session Description Protocol (SDP) and RTP Sessions"

[155] IETF RFC 8851 (2021): "RTP Payload Format Restrictions"

[156] IETF RFC 7728 (2016): "RTP Stream Pause and Resume".

[157] 3GPP TS 36.321: "Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC) protocol specification".

[158] 3GPP TS 25.331: "Radio Resource Control (RRC); Protocol specification".

[159] "Mobile Location Protocol (MLP)", Open Mobile Alliance, OMA-LIF-MLP-V3_1, Approved Version 3.1 – 20 Sep 2011.

[160] 3GPP TS 36.331: "Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification".

[161] 3GPP TS 27.007: " Technical Specification Group Core Network and Terminals; AT command set for User Equipment (UE)".

[162] Void

[163] 3GPP TS 38.331: "NR; Radio Resource Control (RRC); Protocol Specification".

[164] 3GPP TS 38.300: "NR; NR and NG-RAN Overall Description; Stage 2".

[165] 3GPP TS 26.452: "Codec for Enhanced Voice Services (EVS); ANSI C code; Alternative fixed-point using updated basic operators".

[166] 3GPP TS 38.321: "NR; Medium Access Control (MAC) protocol specification".

[167] 3GPP TS 23.228: "IP Multimedia Subsystem (IMS); Stage 2".

[168] 3GPP TR 26.952: "Codec for Enhanced Voice Services (EVS); Performance characterization".

[169] 3GPP TR 26.959: "Study on enhanced Voice over LTE (VoLTE) performance".

[170] 3GPP TS 36.323: "Evolved Universal Terrestrial Radio Access (E-UTRA); Packet Data Convergence Protocol (PDCP) specification".

[171] 3GPP TS 37.324: "Evolved Universal Terrestrial Radio Access (E-UTRA) and NR; Service Data Adaptation Protocol (SDAP) specification".

[172] IETF RFC 8864 (2021): "Negotiation Data Channels Using the Session Description Protocol (SDP)"

[173] IETF RFC 4960 (2007): "Stream Control Transmission Protocol"

[174] IETF RFC 8261 (2017): "Datagram Transport Layer Security (DTLS) Encapsulation of SCTP Packets"

[175] IETF RFC 8831 (2021): "WebRTC Data Channels".

[176] 3GPP TS 23.501: "System Architecture for the 5G System; Stage 2".

[177] IETF RFC 5688 (2010): "A Session Initiation Protocol (SIP) Media Feature Tag for MIME Application Subtypes".

[178] 3GPP TS 28.405; "Management of Quality of Experience (QoE) measurement collection; Control and configuration"

[179] ISO/IEC 23090-2:2019: " Information technology — Coded representation of immersive media — Part 2: Omnidirectional media format".

[180] 3GPP TS 26.118: "3GPP Virtual reality profiles for streaming applications".

[181] ITU-T Recommendation G.1028 (06/2019): "End-to-end quality of service for voice over 4G mobile networks".

[182] 3GPP TS 24.526: "User Equipment (UE) policies for 5G System (5GS); Stage 3".

[183] ISO/IEC 23090-14: Information technology — Coded representation of immersive media — Part 14: Scene Description for MPEG Media.

[184] IETF RFC 8839 (2021): "Session Description Protocol (SDP) Offer/Answer Procedures for Interactive Connectivity Establishment (ICE)".