Because of its inadequacies, the Defense Department capped it at 1850 terminals, and in the late 1960s, hoping for something better, decided not to continue with the expansion of AUTOSEVOCOM.
[1] Phase I of the network was approved by the Deputy Secretary of Defense in July 1967 and after that it took several years to implement AUTOSEVOCOM within the continental United States.
AUTOSEVOCOM-I was a non-tactical network that enabled users to discuss classified or sensitive information over the telephone.
Difficulties with speech intelligibility, requirements for voice recognition,[2] the holding of telephone conferences, speedier service, and simpler calling procedures led Defense officials to approve the development of an improved system, called AUTOSEVOCOM II.
AUTOSEVOCOM II incorporated technological advances and furnished higher quality communications for the several thousand subscribers who were expected to use it when put into operation during the years 1980 to 1985.