Product & Solution > Overview > WCDMA Solution > Infra System
> WCDMA EIR
WCDMA Equipment Identity Register (WCDMA EIR) stores and manages the International Mobile Station Equipment Identity (IMEI) in the WCDMA network.
Mobile Switching Center (MSC) or the Serving GPRS Supporting Node (SGSN) transmits the IMEI confirmation messages to EIR through Mobile Application Part (MAP.) EIR sends the IMEI query to the database, and forwards the query result to the MSC that originally sent the request or the SGSN. When MSC or SGSN receives the normal status (white list), MSC or SGSN will keep processing the call. Otherwise (when receiving black list for stolen handsets), MSC and SGSN will stop processing the call.
EIR is used to prevent and detect stolen or illegal handsets.
Call processing with MSC and SGSN
List management
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White List: List of IMEIs allowed to access the network
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Black List: List of IMEIs prevented from using the network
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Gray List: List of IMEIs temporarily in trouble or of which status cannot be determined
Implied list of IMEI
IMEI management for each range
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List management not only by IMEI but also by range
Adding, changing, or deleting of IMEI to each list
Search of the entire IMEI list or by condition (model or vendor)
Management of additional lists: Lists of institutions, models, and valid reason codes
Product & Solution > Overview > WCDMA Solution > Infra System
> WCDMA EIR
