TS 26.235 – Default Codecs for 3GPP IP Multimedia Subsystem
3GPP TS 26.235 is the 3GPP Technical Specification for Default Codecs for 3GPP IP Multimedia Subsystem. It is published in 5 releases (Rel-8 to Rel-12); the latest version is 12.0.0 in Rel-12.
Specifies default multimedia codecs for conversational services in 3GPP IMS, including audio (AMR) and video (H.263, MPEG-4, H.264) codecs with packetization rules.
Releases and versions of TS 26.235
| Release | Latest version | Links |
|---|---|---|
| Rel-12 | 12.0.0 | Read · Download (3GPP) |
| Rel-11 | 11.0.0 | Read · Download (3GPP) |
| Rel-10 | 10.0.0 | Read · Download (3GPP) |
| Rel-9 | 9.0.0 | Read · Download (3GPP) |
| Rel-8 | 8.0.0 | Read · Download (3GPP) |
Scope of TS 26.235
Category: Services (IMS). Technology generation: 3G. Network layer: Services.
Who should read this specification?
- Network operators
- Device manufacturers
Implementation notes
Complexity level: Intermediate. Implementation difficulty: Medium.
Key technologies
Specifications that reference TS 26.235
- TS 26.114 IMS Multimedia Telephony Client
- TS 26.238 Framework for Live Uplink Streaming (FLUS)
- TS 23.226 Global Text Telephony (GTT) Stage 2
- TS 26.141 IMS Messaging & Presence Media Formats
- TS 23.333 MRFC-MRFP Mp Interface Requirements
- TR 25.993 UTRA RAB Examples and Radio Interface Mapping
- TR 26.935 Speech Codec Performance for Packet Switched Multimedia
- TS 29.333 MRFC-MRFP Mp Interface Protocol
- TR 26.902 Video Codec Performance for 3GPP Packet Services
- TR 26.914 Multimedia Telephony over IP Optimization
- TR 26.943 SES Codec Selection Report
Other specifications in the 26 series
- TS 26.230 CTM C Code Implementation for Text Transmission
- TS 26.231 CTM Minimum Performance Requirements Testing
- TS 26.233 3GPP Packet-Switched Streaming Service (PSS)
- TS 26.234 3GPP PSS Protocols and Codecs Specification
- TS 26.236 Packet Switched Conversational Multimedia Protocols
- TS 26.237 IMS for PSS and MBMS Control
- TS 26.238 Framework for Live Uplink Streaming (FLUS)
- TS 26.243 DSR Extended Advanced Front-end C Code
Related glossary terms
Related topics
Frequently asked questions
What is 3GPP TS 26.235?
3GPP TS 26.235 is the 3GPP Technical Specification for Default Codecs for 3GPP IP Multimedia Subsystem. Specifies default multimedia codecs for conversational services in 3GPP IMS, including audio (AMR) and video (H.263, MPEG-4, H.264) codecs with packetization rules.
Which 3GPP releases include TS 26.235?
TS 26.235 is published in 5 releases, from Rel-8 to Rel-12. The latest version on 3GPP Explorer is 12.0.0 (Rel-12).
What category does TS 26.235 belong to?
TS 26.235 belongs to the Services (IMS) category of 3GPP specifications. It applies to 3G networks.
View the full specification with interactive table of contents, version history, and AI analysis.
Read Full Specification →