Function
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Description
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Version negotiation
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A version negotiation mechanism based on the use of an
application-context-name is used to negotiate the MAP protocol version.
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Location management
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Includes location update, location clearing, user deletion, and notification of the SCP of mobility events.
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Subscription data management
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Includes the management of common service subscription data, LCS subscription data, and customized application for mobile network enhanced logic (CAMEL) subscription data.
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Security functions
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Include authentication & encryption, temporary mobile subscriber identity (TMSI) allocation, and IMEI check.
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Location services
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Include mobile-originated location and mobile-terminated location, emergency call location, and operation & maintenance location.
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Error recovery
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Includes data recovery and HLR restart notification processing
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Supplementary services
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Include call-relevant and call-irrelevant supplementary services and the function of notifying the SCP of supplementary service events.
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Short message service (SMS)
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Includes mobile originating SMS (MO SMS), mobile terminating SMS (MT SMS), and intelligent trigger of SMSs.
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