OTP SMS · 2FA · Mobile number verification
ZAMAN IT provides OTP SMS service in Bangladesh for login, registration, password reset and transaction verification. Send one-time codes from your website, app or software with a free SMS API, Bangla support and real-time delivery reports.
Service overview
An OTP (one-time password) is a short code sent by SMS to confirm that a user owns a mobile number. ZAMAN IT is an OTP SMS provider in Bangladesh serving businesses in Dhaka and across the country, with a free SMS API, dashboard, Bangla and English support and real-time delivery reports.
One-time codes confirm that a real user owns the phone number.
Codes are sent through the SMS API as soon as your system requests them.
Connect your website, app or software with standard HTTP requests.
Delivery reports show what happened to each OTP message.
GSM, extended GSM and Unicode messages are supported.
GSM long code sender support on the listed OTP packages.
Track messages and balance from the SMS dashboard.
Unused OTP SMS carry forward within the 1 year validity.
Packages & Pricing
Compare the OTP SMS packages by quantity, per-SMS rate and validity. Final cost can depend on message type, quantity, sender setup, applicable taxes or charges, and operator or regulatory requirements. ZAMAN IT confirms the payable amount before purchase.
Popular
Definition
OTP verification SMS sends a verification code (also called a security or authentication code) to a mobile number. The user types the code into your website or app, and your system checks it. Because the code is valid for a short time and used once, it helps confirm the person and protect accounts.
OTP messages are sent through the SMS API. For general sending and rates, see Bulk SMS packages and pricing.
Process
Pick a GSM OTP package by expected volume.
Tell us your website, app or software and OTP flows.
We set up your account, dashboard and API credentials.
Send a test OTP, then switch on production sending.
Use cases
Add a code step at sign-in for secure login.
Confirm the phone number when an account is created.
Send a reset code to the registered mobile number.
Confirm payments and sensitive account actions.
Verify cash-on-delivery or high-value orders by SMS.
Use SMS as a second factor for accounts and admin panels.
Industries
Account signup, order confirmation and delivery verification.
Transaction and login verification codes.
Phone number verification for app onboarding.
Confirm riders, customers and reservations.
Secure student and parent portal login.
Verify patients and protect appointment access.
Integration
Connect Laravel, PHP, WordPress, WooCommerce, WHMCS, mobile apps, CRM or SaaS software to the OTP SMS API using standard HTTP requests. Generate the code on your server, send it through the API and check it when the user submits it. Delivery reports show the status of each message.
See SMS API Bangladesh for integration details.
Sender options
The listed OTP packages use a GSM long code sender. If you want your brand name to show on messages, ask about a masking sender ID, which needs approval. For low-cost number sending, see non-masking SMS.
Platform
Best practice
Why ZAMAN IT
OTP package prices and per-SMS rates are listed openly in text.
Free SMS API access and dashboard with OTP packages.
Delivery reports to check each OTP message.
Reach the Dhaka team by form, WhatsApp or the contact page.
Also see Bulk SMS packages and pricing, SMS API Bangladesh, masking SMS or contact ZAMAN IT.
OTP & APPLICATION VERIFICATION GUIDE
Compare supported networks, OTP-capable routes, authentication, response codes, delivery reports and integration support. Before choosing an OTP SMS gateway service in Bangladesh, test your login or registration flow with the selected route and agree on support and message-credit costs.
GSM Basic is ৳2,000 for 5,000 SMS (৳0.40/SMS); Standard is ৳3,900 for 10,000 (৳0.39/SMS); Business is ৳7,000 for 20,000 (৳0.35/SMS); Enterprise is ৳17,000 for 50,000 (৳0.34/SMS). These published OTP packages have one-year carry-forward validity. Integration work and applicable charges should be confirmed separately. Compare OTP packages.
Connect eligible OTP SMS delivery to login, user registration, password reset and ecommerce account verification. Your application must generate and validate the code, enforce expiry and limit resend and verification attempts. Sending a text message alone does not implement a secure registration system. Explore SMS API integration.
Use the account’s documented HTTP API from your PHP or Laravel backend. Keep credentials server-side, handle API failures and prevent duplicate sends during retries. For a two-factor authentication (2FA) OTP service, integrate SMS delivery with your application’s authentication and recovery flow; agree on the implementation scope before launch.
If comparing the fastest OTP SMS provider in Bangladesh, measure real delivery time on your intended networks and test retries and expiry handling. High-speed transactional delivery depends on the route and operator conditions; no fixed speed is guaranteed here. For a voice and SMS OTP verification system, confirm voice OTP availability and pricing separately. A voice-message service does not by itself confirm voice OTP support.
ZAMAN IT supports OTP API enquiries for businesses in Dhaka, Chittagong and across Bangladesh. For bKash or Nagad workflows, use their authorised payment integration and authentication process. ZAMAN IT is not presented as the provider of their login OTPs. Share your application stack, recipient volume and verification requirements for a quote.
Get a free quote
Tell us your platform and expected monthly OTP volume. ZAMAN IT will confirm the package, sender setup and charges before you pay.
Choose a service and share your contact details.
FAQ
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