Who Uses Tamper Detection And I/O’S?

just curious, who actually uses camera tampering detection (camera or VMS side) and connects, through an output in its turn wired to an intrusion panel for instance, to a security monitoring center?

I almost never see this being used and think that’s strange. Using DEOL on a motion sensor, it’s obvious but why isn’t it equally obvious to treat your cameras the same way (if they support it)?

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