AnyTimeSubscriptionInterrogationArg Message
This service is used by the gsmSCF, to request subscription information (e.g. call forwarding supplementary service data or CSI) from the HLR at any time.
In an IP Multimedia Core Network, an IM-SSF can take on the role of a gsmSCF for this service.
This operation package includes the operations required for any time information handling procedures between gsmSCF and HLR.
any time information handling operations. anyTimeSubscriptionInterrogation is a consumer invoke.
The MAP process in the gsmSCF to obtain subscription information in response to a request from the application process in the gsmSCF
Reference: TS 29.002-f30