Provisioning of this service is in accordance with the national security directives in support of Command and Control (C2) and crisis management mission functions.
The Defense Red Switch Network (DRSN) (formerly Multilevel Secure Voice) includes a range of assured services to C2 users and their missions in an environment of a robust and feature-rich set of capabilities. This service is provided at major C2 facilities (e.g., the National Military Command Center [NMCC] and Combatant Command [CCMD] headquarters) interconnected through a cryptographically secured network. The service is the core of a DOD Global Secure Voice System (GSVS) during peacetime, crisis, and time of conventional war by hosting national-level conferencing and connectivity requirements and providing interoperability with both DOD tactical and strategic communities.
The DRSN provides the DOD with high-quality secure voice telephone and conferencing services for end-to-end use by DOD authorized users.