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Authentication centre (or auc)
The Authentication Centre (AC or AUC) is a function to authenticate each SIM card that attempts to connect to the GSM core network (typically when the phone is powered on). Once the authentication is successful, the HLR is allowed to manage the SIM and services described above. An encryption key is also generated that is subsequently used to encrypt all wireless communications (voice, SMS, etc. ) between the mobile phone and the GSM core network.
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- Part of Speech: noun
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- Industry/Domain: Wireless technologies
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