In depth
Phone number QR codes: calls without mistakes
When a code beats a printed number, how to format it and where it saves customers time.
What happens on scan
The code stores the number as tel:+447700900123. The camera recognises it and offers to call. Nothing is dialled until the person confirms.
How to write the number
- Always with the country code: +44, +1 and so on.
- For extensions, use the main number and print the extension as text — pause support differs between phones.
- Short service numbers only work inside a carrier network, so they will not suit everyone.
Where it helps
| Place | Why a code |
|---|---|
| Shop sign or window | A code scans more easily than a number reads from a distance |
| For-sale notice | Call on the spot without writing the number down |
| Service or delivery vehicle | Passers-by call while the vehicle is still there |
| Equipment label | Support without hunting for documentation |
Print the number as text next to the code. Some people prefer to dial themselves, and the text does not interfere with scanning.