Huawei ADD is a product which can obtain triple elements from mobile core network, and triple elements include IMEI、MSISDN and IMSI. After obtaining the triple elements, ADD will invoke the interface
provided by OTA and send the configuration short message to the cell phone afterwards. General speaking, ADD product obtains triple elements through the SS7 sigtran way of triggering from MSC, by using this way, the connection between ADD and Core network
is SS7 sigtrans protocol. Once t......
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