What is the name of the alarm verification method that requires two phone calls before dispatching authorities?

The alarm verification method that involves two phone calls prior to dispatching authorities is known as enhanced call verification. This method is designed to reduce false alarms and enhance the efficiency of emergency response. By requiring two separate confirmations—often from different individuals or locations—this method helps ensure that the alarm is legitimate before authorities are mobilized.

In practice, enhanced call verification allows monitoring stations to confirm the validity of the alarm signals by reaching out to designated contacts. If the first contact does not verify the alarm, a second call is made to another contact. This additional step plays a crucial role in urging a responsible reaction and safeguarding emergency resources for genuine incidents.

Other methods, like standard call verification, typically involve only one call to verify the alarm, potentially leading to quicker dispatch but a higher likelihood of false alarms. Automated call verification refers to systems that rely on technology to manage alert verification without the need for human voices, which might not meet the rigorous standards set by enhanced call verification. Remote call verification usually pertains to methods involving remote monitoring without direct human confirmation, which does not adhere to the two-call requirement. Therefore, enhanced call verification is the correct choice due to its dual confirmation approach, aimed at optimizing response to real threats while minimizing unnecessary dispatches.