Terminal Equipment (TE); End-to-End Protocols for Multimedia Information Retrieval Services; Part 4: Videotex Enhanced Man Machine Interface (VEMMI) Enhancements to Support Broadband Multimedia Information Retrieval Services
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.