Editing Communications system (section)

===By application area===
The term [[transmission system]] is used in the telecommunications industry to emphasize the intermediate [[transmission media|media]], [[communication protocol|protocols]], and [[telecommunications equipment|equipment]] in the [[telecommunication circuit|circuit]], rather than particular end-user applications.

A [[tactical communications system]] is a communications system that 
(a) is used within, or in direct support of [[military tactics|tactical force]]s
(b) is designed to meet the requirements of changing tactical situations and varying environmental conditions, 
(c) provides securable communications, such as voice, [[data]], and [[video]], among mobile users to facilitate [[Command and Control (Military)|command and control]] within, and in support of, tactical forces, and 
(d) usually requires extremely short installation times, usually on the order of hours, in order to meet the requirements of frequent relocation.

An [[Emergency communication system]] is any system (typically computer based) that is organized for the primary purpose of supporting the two way communication of emergency messages between both individuals and groups of individuals. These systems are commonly designed to integrate the cross-communication of messages between are variety of communication technologies.

An [[Automatic call distributor]] (ACD) is a communication system that automatically queues, assigns and connects callers to handlers. This is used often in customer service (such as for product or service complaints), ordering by telephone (such as in a ticket office), or coordination services (such as in [[air traffic control]]).

A [[Voice Communication Control System]] (VCCS) is essentially an ACD with characteristics that make it more adapted to use in critical situations (no waiting for [[dial tone]], or lengthy recorded announcements, radio and telephone lines equally easily connected to, individual lines immediately accessible etc..)