Our Services

Deliver OTPs in Under 3 Seconds

Secure your users with instant OTP delivery. Our platform is optimized for speed and reliability — critical for authentication and payment verification flows.

Get Started View API Docs

OTP (One-Time Password) SMS is the most secure and widely-used method for two-factor authentication in Bangladesh. Zan Communication's OTP SMS service delivers verification codes within seconds, ensuring your users complete their authentication without friction.

Key Benefits

Why Choose Our OTP SMS

Sub-3-Second Delivery

Optimized routing ensures OTPs arrive before your timeout window.

Secure Delivery

End-to-end encrypted message routing with audit trails.

Retry Logic Built-In

Automatic retry on delivery failure ensures maximum OTP success rates.

Simple API

Single API call to send an OTP. Lightweight, fast, and developer-friendly.

Delivery Tracking

Know exactly when each OTP was delivered or failed.

Customizable Templates

Customize your OTP message format to match your brand voice.

Use Cases

What Can You Do with OTP SMS?

Common applications across industries.

User login verification

Payment & transaction confirmation

Account registration

Password reset

E-commerce checkout

Mobile app sign-up

Industries

Industries That Use This Service

Banks & FinTech E-Commerce Software Companies Healthcare

FAQ

Frequently Asked Questions

Typical delivery is under 3 seconds. Our OTP routing is prioritized over standard bulk SMS for maximum speed.

Our system automatically retries delivery through alternate routes. You can also configure webhook callbacks for delivery status.

Yes, with our Masking SMS option, OTPs can be sent from your brand name as the sender ID.

Secure Your Application with Instant OTP SMS

Start verifying users in minutes with our reliable OTP delivery platform.

Get API Access