Payphone kiosk is a part of Hong Kong infrastructure, ordinance, as public payphone considered a basic service under the universal service obligation, which should be made available to all persons in Hong Kong, in spite of this, however, with the popularity of smartphones, the latest statistics released by Trade Development Council shows, the mobile penetration rate reached 232 percent last year, which means everyone in Hong Kong has at least two cell phones., with the increasing penetration of smartphones has not helped the humble payphones kiosk, peoples almost forgot the payphone kiosk because the smartphone can do all the things that a payphone can, even much more, and with the widespread use of instant communication applications such as Google Talk and Skype, it’s cheaper for people making calls at places where free Wi-Fi is available, this make public pay phone quickly toward extinction, despite the rise of the smartphone, as the low using rate should the payphone be removed? Some cities have tried this way, causing some public dissatisfaction. Because the payphone kiosk still has some users, it also can takes on emergency calls, emergency alarms, anonymous reports, etc.

So the best way is thinking how to activation the payphone usage, payphone kiosk are all public spaces, make a telephone calling may be “outdated", but it does not mean that public space is useless. We need to do something to change this situation, the existing capabilities of public kiosks are no longer able to meet our current needs, so we need to add more function to fulfill people’s needs. Some country has turned the payphone kiosk become a Wi-Fi launch station, some installed solar panels on the top of payphone kiosk to provide free chargers for mobile phones and some turned it into a reading space, This all changes are a good way to activate payphone usage.