Which component is NOT part of a base communications system in emergency services?

A base communications system in emergency services typically consists of components that facilitate effective communication between various units involved in emergency response. This includes the dispatcher, who coordinates the response, as well as the field units that carry out the necessary work on the scene. Repeaters, which extend the range and quality of communication signals, are vital to ensure that all pieces of the system can communicate effectively, especially in areas with poor signal strength.

The emergency hotline, although crucial for emergency services, is not considered part of the base communications system but instead serves as a channel for the public to report emergencies. It acts as a point of entry for calls requesting assistance rather than a component that exists within the communication network used by emergency responders. This distinction makes it clear why the emergency hotline does not fit into the established framework of a base communications system, which focuses more on the internal communication among emergency services.