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Voucher Modes

Numeric vs alphanumeric voucher formats and when each is used.
The Bleepay system supports two voucher modes to balance compatibility with existing terminals and scalability in digital environments.

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Numeric mode

  • Format: Short sequence of digits (e.g. 6 digits).
  • Use case: Compatible with legacy POS devices and keypads that accept only numeric input (e.g. ISO/IEC 7812-1, ANSI X4.13).
  • Examples: Countertop payment terminals, integrated POS, kiosks, ATMs, older keypad-based merchant terminals.
  • Transmission: User can read the code aloud or enter it manually; works in low-tech retail environments.

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Alphanumeric mode

  • Format: Short sequence of letters and digits (e.g. 6 alphanumeric characters).
  • Use case: Modern interfaces that support full keyboard or alphanumeric entry.
  • Benefits: Larger space of unique codes in parallel → better scalability and lower code-collision risk.
  • Examples: Touchscreen POS, smart POS, merchant web/mobile dashboards, self-checkout kiosks with software keypads.

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Mode selection

Mode can be chosen dynamically based on:
  • Terminal capabilities
  • Merchant configuration
  • User or context preference
When the payee uses a numeric-only terminal, the payer’s wallet can generate a numeric voucher. When the interface supports alphanumeric input, the wallet can generate an alphanumeric voucher for higher throughput and security. Supporting both keeps interoperability with legacy hardware while allowing high-volume operation in modern setups.

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