What is the technical difficulty of dealing with phone calls about false mining?

Question

Telephony

False phone calls continue about mining establishments in Moscow and other cities, and establishments continue to be evacuated, over and over again, the same ones.
Is telephone spam technically very different from e-mail spam, for example?
Probably, there are some patterns: calls at the same time, through one gate, according to one list of phones.

Answer 1

Probably, there are some patterns: calls at the same time, through one gate, according to one list of phones.

The meaning is not in the patterns, but in the regulations. There is a law, all kinds of internal instructions of the Ministry of Internal Affairs, where it is written what you are obliged to: evacuate, get dogs, check, etc.
Imagine that he calls 100 times a week and says about the bomb, and then the 101st time he actually plants it and blows it up. And if this time they don’t evacuate and check, then it will be PPC. You don’t know, maybe there is an agreement with the parent of one of the students or with the student himself.
Therefore, there is a regulation, the regulation must be followed. Everything. If new information or new technologies have appeared, you can only change the regulations, for example, introduce an accelerated check.

Answer 2

A competent call from a "one-time" phone or through a "one-time" gate is almost impossible to trace. The only hope is that during mass calls some patterns will be noticed, and the caller will fail by reusing the same gates or will repeat calls from the same area.