Local Subscriber Table
A local subscriber table (LST) is an XML formatted file that contains one or more URIs that determine which services are provided for each URI on a per-call basis. The LST can assign services using distinct Public Service Identities (PSIs) or wildcarded PSIs via iFC processes that use the shared-ifc-set file you configure on the Oracle Communications Core Session Manager (OCCSM). The LST is saved locally on the OCCSM’s file system.
LSTs enable a standalone OCCSM node or high-availability (HA) pair to forego relying on an external user database. Thus the OCCSM does not need to communicate with a server to apply services. This can reduce operational complexity and cost by alleviating the need for the OCCSM to execute the SAR queries to fetch the service profile applicable to PSI's.
Note:
This function uses the OCCSM as I/S-CSCF. There is no support for this function performed by the SLRM.Note:
The OCCSM does not support end user authentication and registration using LST.