Communicator supports security classifications, which are typically used in government deployments where users are divided into security clearance categories (native desktop only). The security classification is displayed based on the security classification of all session participants. The security classification is displayed in audio calls. Security classification has to be set by your service provider; the client checks the assigned security classification at login. 

For calls, the security classification can be changed during a call by a user and it works with supplementary services such as Call Transfer and Conference. 

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