Huawei HSS9860 stores and manages identities, authentication data, subscription information, and location information about subscribers. In addition, the HSS9860 verifies mobile terminals when mobile terminals attempt to connect to networks.
The HSS9860 implements the following functions:
Home location register (HLR) in Global System for Mobile Communications (GSM) and Universal Mobile Telecommunications System (UMTS) networks
Equipment identity register (EIR) in GSM, UMTS, and EPS networks.
Home subscriber server (HSS) in evolved packet system (EPS) networks
HSS, subscription locator function (SLF), E.164 number to URI mapping (ENUM), or domain name server(DNS) in IP multimedia subsystems (IMS).
GSM, UMTS, EPS, and IMS networks are 3GPP access networks while CDMA, WLAN, WiMax, and ADSL are non-3GPP access networks.