4 Architecture for manipulating supplementary services settings

24.6233GPPExtensible Markup Language (XML) Configuration Access Protocol (XCAP) over the Ut interface for Manipulating Supplementary ServicesRelease 17TS

The protocol described in the present document allows to manipulate settings and variables related that influence the execution of one or more supplementary services. Manipulation of the supplementary services take place over the Ut interface (UE to AS), as shown in figure 1.

Figure 1: Ut interface

Manipulation of supplementary services does not usually take place during real‑time operation. Typically users manipulate their services configuration data prior to the invocation and execution of the service.

Authentication of the user with HTTP may take place directly at the AS, such as in figure 1, or with the support of an Authentication Proxy, such as in figure 2. The architecture for authentication is provided in 3GPP TS 33.222 [6].

NOTE: The Network Application Function (NAF) can be an AS.

Figure 2: Authentication proxy in the Ut interface path