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GAO reviewed the Federal Aviation Administration (FAA) voice communications equipment replacement plans. FAA planned a two-phase effort to replace existing leased telephone switching and FAA-owned radio control equipment. Some of the equipment would be replaced during the early 1980's with interim leased or purchased equipment while the Voice Switching and Control System (VSCS) was being developed. The interim equipment would be replaced with the VSCS during the late 1980's and early 1990's. The interim and VSCS equipment are to be computer controlled for automated circuit reconfigurations.

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