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Cisco Access Registrar is the leading Cisco RADIUS authentication, authorization, and accounting (AAA) server for the service provider market. It supports service provider deployment of access services by centralizing AAA information and simplifying provisioning and management. Cisco Access Registrar is a standards-based RADIUS and proxy RADIUS server designed for high performance, extensibility, and integration with external data stores and systems. It provides an ideal solution for service providers with mobile wireless, public WLAN, broadband, dial, and Voice over Internet Protocol (VoIP) services, networks, and WiMAX.