Since the elderly has weaker awearness of the danger of stranger. They are common target of scam. How to protect this citizen group is what we need to concern on.

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Rip & Mix helped us to have more ideas can be used for older people as well as similar group.

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Solution

The digital door bell can record the feature of caller, which is also connected to staff office to collect data. This helps the police map the cold call active areas.

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