One-Time Password (OTP) SMS is an automated authentication message sent to verify a user's identity during logins, password resets, financial transactions, or registrations.
Why Fast OTP Delivery Matters
OTPs are time-sensitive codes typically valid for only 2 to 10 minutes. A delay of even 15–30 seconds causes user drop-offs, abandoned shopping carts, and customer frustration. For business applications, rapid delivery and high priority routing are essential.
Key Characteristics of OTP Routes
- 24/7 Delivery: Unlike promotional broadcasts, OTP SMS is delivered at all times of the day or night.
- DND Bypass: Delivered to both DND (Do Not Disturb) and non-DND registered mobile numbers because it is requested by the user.
- High Delivery Rates: Prioritized over regular promotional batches to ensure near-instant arrival.
Best Practices for OTP SMS
Keep your message concise, state the exact validity window, remind users never to share the code, and include your company name clearly.