This Recommendation specifies network requirements for one type of multimedia retrieval services, namely the Video‑on-demand service. The Network capabilities to support the service are described by means of reference configurations and corresponding network architectures. Functional blocks in the architecture are identified and the physical and logical relationships among these blocks are described. Although assumptions must necessarily be made regarding the functionality of Customer Premises Equipment (CPE), specific requirements for CPE are outside the scope of this Recommendation.
This Recommendation focuses on IN-based solutions. Non-IN-based solutions are also included, but in much less detail.
General aspects of network capabilities to support multimedia services covering all service classes are provided in a separate Recommendation, I.375.1.