Automatic Secure Voice Communications Network

The Automatic Secure Voice Communications Network ( AUTOSEVOCOM ) was a global, secure -switched telephone network of the armed forces of the United States and was from the late 1960s to the late 1980s in operation. It was the Automatic Voice Network ( AUTOVON ) are very similar, which was the main military power for non-secure calls.

Phase I

During the mid-1960s, the U.S. government began a worldwide secure telephone network build. This was referred to as Automatic Secure Voice Communications Network, or its acronym AUTOSEVOCOM and was the first project of the National Security Agency to secure the telephone communications of the U.S. Department of Defense. It was a cumbersome and expensive system, which was provided only for very important user. Due to these shortcomings, the Ministry of Defence, the project broke to hope for a better system after 1850 terminal in the late 1960s from.

Phase I of the network has been approved by the Deputy Secretary of Defense ( Deputy Secretary of Defense ) in July 1967 after it took several years to AUTOSEVOCOM to implement in the United States. AUTOSEVOCOM I was a non- tactical network that it allowed users to talk about classified or sensitive information on the phone. The network consisted of exchanges, transmission equipment and terminals on the end users. End users were either at a AUTOSEVOCOM mediation, at a AUTOVON mediation or in a joint Overseas Switchboard ( JOSS ) is connected, for example, which was one of the many telecommunications units (Signal Battalions ) operated and maintained in Vietnam.

The AUTOSEVOCOM switching equipment were designed for broadband calls between local users and allow them secure a wide area network build. The majority of long-distance connections were routed through AUTOVON.

Phase II

Difficulties with speech intelligibility requirements for voice recognition, the need for the possibility of conference calls, faster service and a simpler method for the construction of talks meant that the Department of Defense to develop a new, improved system approved, which AUTOSEVOCOM was called II. Here, the Army was the authority with the greatest requirements for a new system. In May 1976, the Deputy Secretary of Defense the AUTOSEVOCOM II project agreed completely.

AUTOSEVOCOM II integrated technological advancement and enabled, several thousand users a higher quality of communication has to offer, as it was in operation from 1980 to 1985. It showed the U.S. Army Communications Command the program responsible for the AUTOSEVOCOM II program dar.

The Automatic Secure Voice Communications Network was replaced by the Defense Red Switch Network ( DRSN ) and the tap-proof phones STU -III. The last AUTOSEVOCOM switching unit in the world in 1994 was turned off at the Pentagon.