Create a detailed emergency response team activation plan for [Company Name]'s key operational areas in the event of an unexpected disruption. Include roles and responsibilities for each team member, define the initial steps of response, and set an escalation protocol for ongoing crises. Ensure to specify the internal communication channels and tools, along with estimated response times for each phase of the emergency. Be sure to indicate the necessary resources and personnel (both internal and external) required for successful execution. Establish a clear, prioritized list of critical business functions that must continue during an emergency, along with a method for evaluating ongoing threats or risks.