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A feature incorporated into routers and bridges to limit the flow of information based on pre-determined communications such as source , destination , or type of service being provided by the network . With this new system , crews can work on professional military education , graduate degree programs and professional communications such as staff packages , performance reports , awards and decorations . The ultimate goal of the telecollaboration project is to create a virtual mechanical design environment in which computer technology mediates complex communications necessary among distant parties so well that the technology itself seems to dissolve , leaving the designers with a feeling of presence in a common work space . Packet Filtering : A feature incorporated into routers to limit the flow of information based on pre-determined communications such as source , destination , or type of service being provided by the network . The IEEE ( Institute of Electrical and Electronics Engineers ) ' s 802.11n task force ratified the latest draft at the group 's meeting in Hawaii on Thursday , putting to rest controversy that erupted over the wireless communications standard after a consortium led by Intel Corp. submitted its own design for the standard in late 2005 . Description : The following types are usually included : Information or working copies of reproducible communications such as memos issued by the Department , or other documents prepared or issued by the Department and received by an office for information purposes only .