Voice-Based Phone Verification | SMSGATEWAYHUB™

Securely Verify Global Users With Any Phone Type

Usernames and passwords have long been the way for users to access their banking and other accounts online. With the prevalence of fraudsters stealing passwords, phone-based verification is now the key method for better securing both online and mobile app accounts.

  • SECURE, VOICE-BASED ONE-TIME PASSCODE : Verifies users and transactions in real-time, anywhere in the world using out-of-band voice messaging.
  • ANSWERING MACHINE PREVENTION : Blocks voice-based passcode message from being sent to an answering machine, mitigating unnecessary verification costs.
  • DYNAMIC CALLERID : Configures an ideal caller ID number to be displayed to ensure number is recognizable by the end-user.
  • PHONE NUMBER CLEANSING : Properly formats phone number entered by end-user to ensure greater global delivery.
  • CALL FORWARD DETECTION* : Checks in real-time to determine if a phone number is being diverted via call forwarding to allow you to then block, allow or require additional user challenges for verification. *Check with your sales representative for availability in your area.
  • GLOBAL COVERAGE : Helps ensure voice message delivery to end-users in more than 200 countries and territories.
  • TEXT-TO-SPEECH : Gain access to text-to-speech automated messaging in 26 languages and dialects when delivering voice-based passcodes to consumers— providing a more local presence virtually anywhere in the world.


Protect End-User Accounts

Secures accounts from compromise using voice-based OTPs on any phone type, on a global scale.

Protect Account Access & Verify Transactions

Seamlessly authenticates users as they make account changes and high-value transactions such as accessing credit card details, transferring funds or making bill payments.

Reach Landline Phones

Enables global reach of users who do not wish to receive SMS-based messages and/or provided a number that is not equipped to receive them.

Access 24X7 Support

Offers access to a dedicated technical account manager who provides user experience reviews and helps customers optimize their verification processes for end-users around the world.


Phone verification using SMSGATEWAYHUB™ Voice Verify is easily integrated via REST API into an existing application, user experience or workflow. The following is one example of how to use the product to verify the identity of a user creating a new account.

  • 1) The user registers for an account on your website and enters their phone number.
  • 2) SMSGATEWAYHUB™ checks the type of phone number provided and determines it is a landline.
  • 3) SMSGATEWAYHUB™ also identifies the country the user resides in and sends an OTP voice message to the number provided in the language appropriate for the user.
  • 4) The user enters the correct passcode on the login screen.
  • 5) The passcode entered is the same code that was sent to the user, so the user is verified.
  • 6) The user is then able to complete the account registration process.


Integrate our products seamlessly into your user experience.

Get Started

Any query? Please Mail : Support@smsgatewayhub.com