Final answer:
In the event of a telephone bomb threat, it's vital to keep the caller on the line, record the conversation, and notify the authorities immediately. The reference material provided focuses on minimizing blast and heat injuries from explosions rather than protocols specific to handling bomb threats over the telephone.
Step-by-step explanation:
In the event of a telephone bomb threat, it is crucial to remain calm and take specific actions to ensure safety. The information given references measures to take in case of blasts and avoiding injuries, which closely relates to how one should react in a bomb threat scenario. While the reference is primarily focused on protecting oneself from the effects of an explosion, such as atomic weapons, it imparts the importance of taking immediate and appropriate action to minimize harm.
However, the instructions provided in the reference material do not directly address the procedures to follow when receiving a bomb threat over the telephone. In such cases, different protocols are typically recommended. These involve:
Keeping the caller on the line as long as possible and recording everything said.
Notifying authorities immediately by using another phone or after the caller hangs up.
Avoiding using mobile phones during the threat as it may trigger an explosive device.
In addition to these steps, the reference to minimizing radiation exposure from mobile phones, while not directly related to a bomb threat situation, reminds us of the importance of health and safety in all potential hazardous scenarios.