QR code scanner app.
And running a QR code reader please aim at the QR code mark.
When recognizing the QR code you will go to that web page.

When the QR code is plain text phone numbers the QR code will show the text the phone number information.

If you aim at your QR mark click or automatically recognized by the camera without the need to scan the QR code will be read.
Please use a QR Code reader applications well.

- Open Source ZXing library QR scanner. Apache License 2.0.