If a secondary PSAP is needed for handling an emergency call, the caller should be __________ there.

When handling emergency calls, transferring the caller to a secondary Public Safety Answering Point (PSAP) is crucial to ensure that the caller receives the appropriate response for their specific emergency situation. This process involves efficiently routing the call to the correct agency that can provide the necessary assistance.

Transferring the call allows for the immediate handover of information from the first PSAP to the secondary PSAP so that the caller's details and emergency context are relayed effectively and without delay. This method is crucial, as it avoids unnecessary interruptions or confusion, ensuring that emergency responders receive timely and accurate information.

In contrast, being connected or placed on hold may not facilitate a smooth transfer of critical information, while being dropped off does not support the continuity of the emergency response process. Thus, transferring the caller is the most effective and appropriate action to take when a secondary PSAP is needed.