Defense Red Switch Network

The network is maintained by the Defense Information Systems Agency (DISA) and is secured for communications up to the level of Top Secret SCI.

Department of Defense and federal government agencies can get access to the network with approval of the Joint Staff.

[2] Upon approval by the Joint Staff, DISA will work with the customer and the appropriate military department to arrange the service.

End users are provided with a single telephone instrument with which they can access both secure and non-secure networks.

It's the core of the 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 tactical and strategic communication networks.

A Multi Line Phone (MLP-1A), made by Electrospace Systems , which was part of the Defense Red Switch Network since 1983. The phone has the four extra MLPP buttons and 48 programmable buttons for access to both secure and nonsecure lines. [ 1 ]