Chris Cox Communications
Home
Training
Consultancy
Career profile
Testimonials
UMTS specifications
Website terms and conditions
Contact

26 series - Packet-switched multimedia codecs

26.142 - Not available in this release 26.346 - Multimedia Broadcast/Multicast Service (MBMS); Protocols and codecs 26.141 - IP Multimedia System (IMS) Messaging and Presence; Media formats and codecs 26.140 - Multimedia Messaging Service (MMS); Media formats and codes 26.246 - Transparent end-to-end Packet-switched Streaming Service (PSS); 3GPP SMIL language profile 26.245 - Transparent end-to-end Packet switched Streaming Service (PSS); Timed text format 26.244 - Transparent end-to-end packet switched streaming service (PSS); 3GPP file format (3GP) 26.234 - Transparent end-to-end Packet-switched Streaming Service (PSS); Protocols and codecs 26.233 - End-to-end transparent streaming service; General description 26.114 - Not available in this release 26.935 - Packet Switched (PS) conversational multimedia applications; Performance characterization of default codecs 26.236 - Packet switched conversational multimedia applications; Transport protocols 26.235 - Packet switched conversational multimedia applications; Default codecs Up to the 26 series

Description

This page divides the codecs for packet-switched multimedia into four groups:

  • The first group of specifications defines the codecs and data transport protocols that should be used by packet-switched conversational multimedia applications. Most of these applications are not themselves standardised, but 3GPP have recently introduced a standard for multimedia telephony over the IP multimedia subsystem.
  • The second group defines the codecs, protocols and file formats used by the packet-switched streaming service, which delivers streaming media from a server to a mobile.
  • The third group defines the codecs, protocols and media formats used by MMS, MBMS and the IP messaging & presence services.
  • The final group contains a specification for dynamic & interactive multimedia scenes (DIMS), which are supported by three services: MMS, MBMS and PSS.

Abbreviations

DIMSDynamic and interactive multimedia scenes
IMSIP multimedia subsystem
MBMSMultimedia broadcast and multicast service
MMSMultimedia messaging service
MTSIMultimedia telephony service for IMS
PSSPacket switched streaming service
SMILSynchronised multimedia integration language
Copyright Chris Cox Communications © 2018. All rights reserved.