What should be the immediate action if someone is trapped in an elevator during a power outage?

Using the emergency communication system to request help is the best immediate action for someone trapped in an elevator during a power outage. This system is specifically designed for situations like this, allowing individuals to communicate their predicament to trained professionals who can provide assistance. Emergency responders or building personnel can coordinate a safe and efficient rescue, ensuring the trapped individuals are helped as quickly as possible.

Attempting to open the doors manually can be dangerous and might cause further issues, such as becoming stuck in an unsafe position or inadvertently causing harm. Panicking and shouting for help may attract some attention, but it lacks efficiency and does not guarantee that help will arrive quickly or safely. Using the elevator controls would be futile during a power outage, as they would not function without power, potentially leading to further frustration or danger. Therefore, utilizing the emergency communication system is the most prudent and effective course of action in this scenario.