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Services

OTP scenarios for popular services

These pages explain how to verify users in your product. Cascade sends a code to the user’s phone — this is not renting virtual numbers for third-party platforms.

Quick Answer

Use Cascade when your service itself sends a verification code to the customer.

Summary

For each platform — a typical flow, common mistakes and FAQ.

Key Takeaways

  • Cascade = outbound OTP delivery.
  • Do not confuse with buying disposable numbers to register on third-party sites.