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Verify customer logins, registrations, payments, and account changes in Bulgaria through Teliqon’s flexible OTP SMS API.


SMS OTP authentication verifies users with a unique, time-limited code sent to their mobile phone. The user enters the SMS authentication code to confirm a login, registration, payment, password reset, or another sensitive action. Because each code expires quickly and can only be used once, it adds an extra layer of security beyond reusable passwords. Businesses serving customers in Bulgaria can integrate Teliqon’s OTP SMS API into websites, mobile apps, and online platforms, providing a simple verification experience without requiring users to install a separate authentication app.
SMS authentication reaches customers in Bulgaria across almost any mobile phone, without requiring a separate authenticator app or the latest smartphone.
SMS authentication sends a time-limited code directly to the registered phone number, allowing users to complete protected actions without checking email or opening another app.
Users are already familiar with SMS authentication codes, making it easy to securely confirm registrations, account logins, and payments with minimal guidance.
Teliqon’s OTP SMS API lets businesses serving customers in Bulgaria add verification to websites and mobile services while keeping the existing customer journey.
Generate each SMS authentication code in Teliqon or provide it from your own system, with configurable length, digits, letters, and special characters.
Use Teliqon’s OTP SMS API to trigger verification for customers in Bulgaria during registrations, logins, payments, and account recovery.
Choose a supported language and verification template, then automatically insert the company name and OTP code into each customer message.
Receive a callback when an OTP SMS reaches a delivered, expired, or undeliverable state, with optional request data included in the response.
View SMS prices for Bulgaria, estimate costs by message volume, search processed SMS history, and export detailed delivery records to CSV.

Use SMS authentication in Bulgaria to verify customer logins, approve payments, confirm new payees, and protect account recovery workflows.

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Fintech company with worldwide reach streamlines global operations and scales customer support with Teliqon’s cloud-based voice and messaging tools.
Register
Create an account to start your SMS campaigns or request a personalized platform demo.
Configure Channel
Set up your contact database and design a message template to send SMS campaigns via API or web.
Test Campaign
Our expert team is on hand to assist with any issues during your setup and testing phase.
Send, Engage & Scale
Launch your SMS campaigns, engage your audience, and watch your business grow.
SMS authentication verifies a customer using a unique code sent to the mobile number linked to their account. The user enters the code to confirm a registration, login, payment, recovery request, or another protected action. Each code is intended for one-time use and expires after a limited period, giving customers in Bulgaria a familiar way to verify control of the phone number connected to their account.