The QoD API offers the application developers the capability to request for stable latency (reduced jitter) or throughput for some specified application data flows between application clients (within a user device) and application servers (Vodafone backend services). The developer has a pre-defined set of Quality of Service (QoS) profiles which they could choose from depending on their latency or throughput requirements. Flow of communication:

API is invoked using a two-legged access token, the subject will be identified from the optional device object, which therefore MUST be provided.

If the subject cannot be identified from the access token and the optional device object is not included in the request, then the server will return an error with the 422 MISSING_IDENTIFIER error code.