1 Scope

22.2433GPPRelease 17Speech recognition framework for automated voice servicesStage 1TS

The present document defines the stage one description of the Speech Recognition Framework for Automated Voice Services. Stage One is the set of requirements for data seen primarily from the user’s and service providers’ points of view.

This Technical Specification includes information applicable to network operators, service providers, terminal and network manufacturers.

This Technical Specification contains the core requirements for the Speech Recognition Framework for automated voice services.

The scope of this Stage 1 is to identify the requirements for 3G networks to support the deployments of a speech recognition framework – based automated voice services and therefore to introduce a 3GPP speech recognition framework as part of speech-enabled services. The Speech Recognition Framework for automated voice services is an optional feature in a 3GPP system.

Figure 1 positions the Speech recognition Framework (SRF) with respect to other speech-enabled services as discussed in [6]. As illustrated, SRF is designed to support server-side speech recognition over packet switched network (e.g. IMS). As such SRF also enable configurations of multimodal and multi-device services that include distribute the speech engines.

Note that it is possible to design speech-enabled services that alternate or combine the use of client-side only engines and SRF.

Figure 1 – Positions the scope of the speech recognition framework as part of general speech enabled services.