Bittium Secure Call™ is a secure voice, video, and messaging application with end-to-end encryption for Microsoft Windows and Android™ clients, including Bittium Tough Mobile 2 smartphones. It is designed for enterprise, government and other professional users with stringent information security needs. The application supports deployment in commercial and private networks with no dependency on public Internet or cloud services. It can be deployed and fully managed by the user organization. Bittium Secure Call can be complemented with Bittium Secure Suite™ to offer device security management and the use of an additional VPN layer to provide dual encryption for secure communication.

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The ultra secure mobile communication solution including Bittium Tough Mobile 2 C, Bittium Secure Suite, and Bittium Secure Call has been approved for NATO Restricted level use.