Now you can use a QR code to replace a companywide intercom system. Based on patent-pending Squareping technology, Pingpad Intercom/PBX system is a blend of mobile, cloud and video call technologies. Unlike traditional Intercom system, Squareping says the Pingpad call board is reduced to a QR code without any keypad, camera or electronics.

Visitors simply use their own mobile phones to scan the QR code and enter an extension or access code to place calls to a Pingpad user over the Internet or mobile network, without touching the call board.

Pingpad is aimed at applications like hotels, apartment buildings, condos, townhomes, mobile home parks, gated communities, etc.

Here are the details: https://squareping.com/pingpad/