The Sh application operates on user profiles. A user profile is
stored in the HSS. These profiles enable the user to perform authentication
and authorization of the user.
A user profile is bound to a Private User Identity. The Sh application
uses the term user data to refer to diverse data types in a user profile.
These data types are defined as an XML schema, ShDataType.xsd,
attached to the ETSI TS 129.328 standards. The user data can refer to any
of the following:
- Repository Data: This is transparent data stored on the HSS.
- IMS Public Identity: A list of Public User Identities allocated to each
user.
- IMS User State: This is the registry state of the user in IMS.
- S-CSCF: This contains the address of the serving- call session control
function (S-CSCF)
- Initial Filter Criteria: Contains the triggering information that indicates
the appropriate service to be called.
- Location Information: This contains the location of a user in the packet-switched
or circuit-switched domains.
- User State: This contains the state of the user in the packet-switched
or circuit-switched domain.
- Charging information: This contains the address of the charging functions.
- PSI Activation: This contains the state of a Public Service
Identity (PSI) indicating whether or not it is active.