Do you remember a time before cell phones at the dinner table? It's becoming more and more common to see a full table of families or friends with their faces in their phones while out to dinner. That's why McDonalds in Singapore created phone lockers in a attempt to get families to speak again.
One McDonald's that just installed the feature is in Singapore and is targeted at families. When you place your phone in the box it comes with a key to lock it up. However, it seems they're not too popular..
McDonald's has also incorporated specific places on tables to set your phones. Users reported lasting no longer than 5 minutes.