This European Telecommunication Standard (ETS) specifies extensions to ETS 300 709 [1] in order to support Real Time (RT) information and multiplexed datastreams. The ETS introduces concepts that are needed to handle real-time information (level a and b description) and specifies the coded representation of these concepts as well (level c description). In addition, this part 4 defines an interfacing mechanism to the Digital Storage Media Command and Control (DSM-CC) function and operations for managing real-time audiovisual content. This part 4 is applicable to both the multimedia service and the attached terminals. It also includes a bibliography (annex A) which identifies service/application architectures and protocol stacks for information retrieval services that make use of the technologies listed hereafter.
PUBLISHED
SSH ETS 300 777-4:1997 ed.1
60.60
Standard published
Sep 11, 2025