Various apparatus, methods, techniques and systems are disclosed for admitting, tracking, monitoring and processing data about visitors and vehicles that visit an access-controlled environment. A network having one or more greeting stations and a number of linked answering stations collects and manages data concerning visitors and/or vehicles in the access-controlled environment, and can manage or assist individuals in managing granting access to the access-controlled environment, monitoring visitors and vehicles present in the access-controlled environment, limiting movement and access to certain areas in the access-controlled environment and generating records and other data about each visit. Some embodiments of the network are also adaptable for use in providing traveler assistance and consular services for various types of individuals.