Technical Specifications
- Protocol
- tel: URI scheme (RFC 3966)
- Format
- International E.164 format (+1234567890)
- Compatibility
- All cellular smartphones and VoIP dialers
Standard Industry Use Cases
- Restaurant takeout ordering signs and menu boards
- Real estate yard signs and contractor vehicle decals
- Emergency hotlines and 24/7 technical support numbers
Recommended Hardware & Supplies
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Key Benefits of Phone QR
Instant 1-Tap Telephone Dialing
Launches phone dialer with telephone number pre-loaded; zero misdialed digits.
Universal Cellular Compatibility
Supported natively on every iOS and Android device with zero app requirements.
Emergency Speed
Enables immediate voice connection in urgent situations.
What Code Do I Need for My Product? (Customer Decision Guide)
Choosing the right barcode format depends on where your product is sold, the packaging substrate, and scanner infrastructure:
Real estate yard signs, contractor trucks, and restaurant storefronts?
Allow passersby to call your sales office with a single camera tap.
Equipment breakdown or security hotline signage?
Ensure facility operators can connect directly to security or maintenance personnel.
Legal & Compliance Guide
Phone QR Formatting & International Roaming
- Always format telephone numbers in international E.164 format (+[country code][number]) so international travelers can connect without dialing errors.
- Smartphones will always prompt the user to confirm the call before dialing, preventing accidental or phantom outgoing calls.
- Uses the tel: link format (IETF RFC 3966).
Frequently Asked Questions
Should I include the country code in the phone number?
Yes, always format phone numbers with a leading "+" and country code (e.g., +1 for USA/Canada, +44 for UK) to ensure international callers dial successfully.