Telefon Numarası QR Code'ları: Tek Dokunuşla Arama
Creating tel: URI QR codes for instant calling. International format, country codes, and use cases from business cards to emergency signs.
Phone Number QR Codes: One-Tap Calling
Phone QR codes encode a telephone number using the tel: URI scheme. When scanned, the device prompts the user to initiate a call — reducing friction from business cards, signage, and print advertising.
The tel: URI Format
tel:+15550123456
The format is straightforward: tel: followed by the phone number in international format.
International Number Format
Always use the E.164 international format:
- Prefix with
+and country code - No spaces, hyphens, or parentheses (though some parsers tolerate them)
- Examples:
+15550123456(US),+442071234567(UK),+81312345678(Japan)
This ensures the QR code works regardless of where the scanner is located.
Platform Behaviour
| Platform | Action on Scan |
|---|---|
| iOS | Shows "Call +1..." prompt — user taps to dial |
| Android | Opens dialer with number pre-filled |
| Feature phones | Varies — most open the dialer |
All modern smartphones show the number before dialling, giving the user a chance to confirm or cancel.
Use Cases
- Business cards: Scan to call — faster than typing the number
- Emergency signage: Quick-dial emergency contacts or building management
- For-sale signs: Real estate agent phone number
- Service desks: "Scan to call support" alongside operating hours
- Delivery instructions: "Scan to call recipient" on package labels
Combining with Other Types
A single business card might include:
- A vCard QR code that saves the full contact including phone number
- Or a simpler
tel:QR code for one-tap calling
For most professional use, the vCard approach is better because it saves the contact permanently. The tel: QR code is best when the primary action should be an immediate phone call.
Best Practices
- Use E.164 international format exclusively
- Include a visual label showing the number next to the QR code
- Add a call-to-action like "Scan to Call"
- Consider operating hours — calls outside hours create poor experiences
- For toll-free numbers, still include the country code prefix
Key Takeaways
- Phone QR codes use the
tel:URI scheme - E.164 international format ensures global compatibility
- Smartphones prompt before dialling for user confirmation
- Best for immediate call actions rather than contact saving
- Label the QR code clearly so users know what scanning will do