New York City is replacing pay phones with new high-tech wireless hubs that will dish out free, high-speed Wi-Fi service, charge mobile devices and provide access to city services.

In coming months, the city will install about 7,500 LinkNYC hubs, which include an Android tablet for surfing the Internet, connecting to city services and making VoIP calls. The hub will also include a wireless hotspot for connecting smartphones, tablets and PCs to the Internet.

But the new technology has one potential challenge that pay phones didn’t have: How do you keep the hubs — also called Links — up to date in a fast-changing technology world?

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