What action is associated with Signal 19?

Signal 19 refers to a specific communication within the Ohio State Highway Patrol that is used to indicate a need for relaying information or messages by phone. This is an important protocol for ensuring that accurate and timely information is communicated between units or command, which is crucial during operations where on-the-ground coordination is vital.

Relay by phone allows for clearer communication, especially in situations where radio contact may not be adequate due to various circumstances such as interference or distance. This method ensures that critical updates, instructions, or requests can be conveyed directly to the necessary personnel without the possibility of misunderstandings that can occur over radio transmissions.

In contrast, other actions like requesting roadblocks, indicating that a primary unit has gone out of service, or signaling an incident escalation refer to different procedures, each carrying its significance in operational contexts but without the specific focus on information relay that Signal 19 encompasses.