Final answer:
A telecommunicator should not tell a caller that help will arrive immediately to avoid creating unrealistic expectations due to various factors that can affect response time, thereby maintaining trust and avoiding legal or safety issues.
Step-by-step explanation:
A telecommunicator should never tell a caller that response units will be 'right there' because it can create unrealistic expectations. The response time can be affected by a variety of factors, including call volume, the severity of other calls, geographic location, weather conditions, and traffic. Ensuring the caller remains calm and providing accurate information is critical. By avoiding giving specific time frames for the arrival of response units, the telecommunicator avoids the risk of the caller losing trust if the units do not arrive as quickly as said. Moreover, for legal and safety reasons, it is important to manage the expectations of the caller without making any promises that might not be kept.