This page discusses the different parts of the Rhino VoLTE TAS that may access subscriber data stored in the network’s HSS and/or HLR.

Data stored on the HSS

The HSS stores the subscribers' service and subscription data used by the Rhino VoLTE TAS for IMS networking.

For running services that are dependent on the subscriber’s configuration profile, the Rhino VoLTE TAS accesses the HSS through the Diameter Sh interface.

What accesses the subscriber data

The Rhino VoLTE TAS retrieves a subscriber’s data via the internal Sh Cache Microservice (ShCM) node. Configuration of the Sh interface and ShCM is detailed in HSS integration.

Through the ShCM node, the following Rhino VoLTE TAS nodes access the HSS subscriber data:

  • The MMT node for data used by services on the MMTel TAS and SCC-AS.

  • The SMO node for data used by services on the IP-SM-GW.

  • The MAG node for features that manage subscriber data such as the XCAP server, REST API, or an internal web user interface. Provisioning subscriber data describes these features in further detail.

A UE may use the XCAP protocol to manage service specific data through the Rhino VoLTE TAS.

Data stored on the HLR

Service data used by the Rhino VoLTE TAS for GSM or CDMA networking is stored on the HLR. The Rhino VoLTE TAS uses the MAP protocol to access the HLR.

Access to service data in the HLR is necessary for many services to operate using GSM and CDMA networking.

Configuration of the MAP interface is detailed in HLR integration.

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Rhino VoLTE TAS Version 4.1