# Labels, QR codes and NFC

> Cablefolio prints a QR label for every room, rack, device, patch panel, and cable run, so scanning one on site opens its record — and reads serials, MACs, and printed labels with the phone’s camera.

- Labels for rooms, racks, devices, patch panels, and runs, with the lines you choose
- Letter or A4 sheets, 12, 18, or 24 mm tape, and 2 × 1 in thermal rolls
- Wire flags for both ends of every run, with the cable ID and the far end
- Scan a QR code, read printed text on the phone (beta), or tap an NFC tag (beta)

## Print exactly the labels the job needs

From a property or a rack, tick what to print — the property, rooms, racks, devices, patch panels, runs — and the lines each label carries: type, path, short ID, serial, IP address, cable ID, far end. Choose the stock and print; the count says how many labels and sheets that is and warns when a label has no room for every line. Wire flags print a flag for each end of every run.

## Scan to open, on site

On a phone, **Scan a code** opens the record behind one of Cablefolio’s QR labels; any other code is searched for as text. Where there is no QR code — a manufacturer’s sticker, a hand-written cable tag — the camera reads the printed words on the phone itself, even with no signal, matching against the properties kept offline.

The same reader fills a device’s serial number and MAC address, and a run’s cable ID, from the label. A MAC’s maker is named from its prefix as a hint.

## NFC tags (beta)

Write an NFC tag for a room, rack, device, or run and tap it later to open the record. A written tag can be locked read-only for good. Writing needs Chrome on Android; iPhones can read the tags. Label reading and NFC are in beta while they are tested on more phones.

## Questions and answers

### What label stock does Cablefolio print on?

Letter or A4 sheets of die-cut labels, 12, 18, and 24 mm tape, and 2 × 1 inch thermal rolls. Tape and thermal rolls print one label per page at the label’s size.

### Does label reading work without a signal?

Yes. Reading printed text happens on the phone itself, and with no signal it matches against the properties kept offline on that device.

### Can Cablefolio write NFC tags on an iPhone?

Writing NFC tags needs Chrome on Android, because it uses Web NFC. iPhones can still read the tags Cablefolio writes.

## How-to guides

- [Labels and QR codes](https://cablefolio.com/help/labels-and-qr-codes/)
- [Offline](https://cablefolio.com/help/offline/)

## Related features

- [Offline field app](https://cablefolio.com/features/offline-field-app/): Keep a property on the phone, work with no signal, and sync in order with clear conflicts.
- [Racks and elevations](https://cablefolio.com/features/racks-and-elevations/): Front and back elevations at true U scale, drag-to-mount, reservations, and presets.
- [Ports and cable runs](https://cablefolio.com/features/ports-and-cable-runs/): Faceplates, patch panels, end-to-end trace, cable IDs, pathways, and tester readings.