WHAT IS VOICE OTP?
We are proud to be one of Vietnam’s leading providers of affordable and reliable Voice OTP services.
Voice OTP by YourSales delivers advanced features and high-level security, making it widely used in finance, banking, insurance, online lending services, and more — at a significantly lower cost compared to traditional SMS verification services.
Our intelligent calling system is equipped with advanced capabilities such as detecting blocked numbers and automatically rotating caller IDs, resulting in a higher successful call rate than other services on the market.
The Optimal Authentication Solution for Businesses
Voice OTP is an automated phone call service that delivers a one-time password (OTP) to users instead of sending a traditional SMS message. When users perform a transaction on an application or website, the system automatically calls the registered phone number and reads out the OTP using AI-powered voice technology with pre-recorded content. The user then enters the OTP to verify the transaction.
As information security requirements continue to increase and become widely adopted across various industries, Voice OTP services help businesses reduce costs for large transaction volumes while still ensuring convenience, speed, and high security.
Compared to hardware tokens, which are complex and expensive to produce, and SMS OTP, which can be costly for businesses with high login or transaction volumes, Voice OTP is a compelling alternative—often costing only about half as much.
Outstanding Advantages of Voice OTP Service
Fast Registration
The service will be activated within 1–3 hours after contract signing and finalizing the call script, without going through complicated carrier registration procedures.
Easy to Implement
A solution suitable for all user groups. Users only need to listen and enter the OTP code without performing complicated actions on their phones.
Professional Verification
Voice OTP verifies user identity more accurately, reducing the risk of fraud and unauthorized access.
Cost Saving
Voice OTP saves up to 70% compared to SMS OTP. Charges only apply to successful calls. Unanswered or busy calls are completely free of charge.
High Security
Voice OTP minimizes the risk of OTP theft compared to SMS OTP, as hackers cannot intercept voice calls.
Enhanced Experience
The calling system is equipped with intelligent features such as rotating blocked numbers, increasing the call answer rate.
Voice OTP Applications
OTP verification for account registration
OTP verification for password changes
For apps or websites not eligible for Brandname registration
Suitable for finance, lending services, online gaming, etc.
Voice OTP Verification Process
Initiate OTP Request
When a user performs an online transaction or logs into an account, the system initiates an OTP request.
Generate OTP Code
The system generates a unique OTP code that is valid for a short period of time to ensure security.
Automated Voice Call
An automated call is made to the user’s registered phone number. During the call, a voice system reads the OTP code aloud to the user.
Enter OTP Code
The user listens and records the OTP from the call, then enters it into the verification interface on the website or application to complete authentication.
Voice OTP Verification Successful
After the user enters the correct OTP code provided via the voice call, the system verifies successfully and allows the user to proceed with login or complete the transaction securely and quickly.
Why Choose
YourSales Voice OTP
Supports reading both alphanumeric characters and customizable amounts via API.
Allows automatic repetition of the OTP multiple times based on customer requirements.
Enables automatic callback scheduling if the user does not answer or the line is busy.
Supports using your existing caller ID, helping users recognize and trust the number.
Provides detailed reports and statistics on successful and failed calls.
