ZXUN EIR (Equipment Identity Register) is one of ZXUN USPP product series of the unified core network ZTE user's data management products. EIR contains one or more database used to store the IMEI information of terminal equipment (white list, gray list, and the blacklist), and by checking the IMEI identifies the terminal equipments’ legitimacy which is to access the PLMN.


Distributed architecture
All of the features entities have the linear distribution entity. Thus, it realizes smooth dynamic expansion and is easy to acquire larger capacity.
All of the features entities have the geographical distribution. So, it provides a natural disaster recovery capabilities ensuring higher reliability.

Full integration
ZXUN EIR supports multi-network, multi-service integration and has the ability of evolution. It simultaneously supports PSTN, PHS, GSM, UMTS, TD-SCDMA, CDMA, IMS, WiMAX, wide-narrow-band access network user data storage and service processes. It is integrated with SHLR, PHS HLR, GSM / UMTS HLR, CDMA HLRe, HSS, EIR, MNP, FNR, AAA and other network entities.
ZXUN EIR realizes easily network evolution, network element integration and management; benefits to the introduction of new services and the service integration; facilitates data mining and analysis capabilities. With data fusion, it leads to easy integration or converged services. The Operators regain control of network, users, and services from converged data application, which enhances the commercial value of primary data.

Open interface
ZXUN EIR supports the loosely coupled data and services. It realizes the linear expansion on based on requirement; greatly reduces the operational time of the introduction service time and loads the service online. Open interface provides a strong guarantee for many manufacturers’ faster development and customized service.

High reliability
ZXUN EIR adopts memory / local disk / Magnetic Array Three-tier data storage mechanism, and fully guarantees the user data security to help operators to establish a highly efficient, highly reliable, and highly secure network.