WebSphere brand IBM WebSphere IP Multimedia Subsystem Connector, Version 6.2

Data operations

The Sh subscriber profile Web service application implements four Diameter Sh data operations that enable the exchange of user data between an application and the Home Subscriber Server. An application interfaces with the Diameter Enabler base through the Sh subscriber profile Web service.

The following table lists the four types of Diameter Sh data operations, with their appropriate commands. The Diameter Sh protocol defines new AVPs and eight new Diameter commands to support user data operations.

Table 1. Data operations
Data operation Protocol description
Data get Allows an application server to get data from the HSS for a particular user. The user data can be of any of these:
  • 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 topic.
  • MSISDN: This contains the user's MSISDN.
  • PSI Activation: This contains the state of the activation.
  • User Data: This contains user profile data in an XML string representation.
Data update Allows an application to update repository data and PSI activation for a specific user and store them in the HSS.
Subscribe Allows an application to subscribe to notification when the data has been updated in the HSS. Notification can be sent for the following data types:
  • Repository data
  • IMS user state
  • S-CSCF name
  • Initial filter criteria
  • PSI Activation value
  • User data
Notify Allows an HSS to notify the application that the data it subscribed for notification have been updated. The data are then sent to the application server by the HSS in the notification. Notification can be sent for the following data types:
  • Repository data
  • IMS user state
  • S-CSCF name
  • Initial filter criteria
  • PSI Activation value
  • User data



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