FAQ | Authenticate

Utilize tyntec’s FAQs to help solve any issues you may have. Additionally, learn about cloud communications, CPaaS, SMS for business, authentication, and more. If any questions arise while reading, don’t hesitate to contact us.

How Do I Know Whether TTS or SMS Will Be Used?

FAQs

Authenticate

Getting Started

Overview

How Can I Create My tyntec 2FA Account?

How Does the 2FA API Work?

Why Should I Use SMS for Authentication?

What Are the Benefits of Using Phone Numbers As a Digital Identifier?

What Usecases Does the 2FA API Support?

What Is the Difference Between 2FA API and tyntec’s OTP SMS API?

Can I Use the 2FA API With Any Number in the World?

How Much Does tyntec’s 2FA API Cost?

Is There a Charge for Additional Verification Attempts?

How Long Does It Take to Verify a Phone Number With tyntec’s Two-factor Authentication Codes?

How Are PIN Codes for 2FA Generated?

What Is the Length of a 2FA PIN Code/ One-time Password?

Can I Provide My Own 2FA Codes?

How Can I Retry a Verification Attempt?

What Is the Validity Period for 2FA API’s PIN Codes?

How Many Times Can a Customer Enter a PIN Code?

Where Can I See the Status of a PIN Code/otp?

How Do I Map the PIN Code/OTP the Customer Enters for the Original Request?

What Should I Do If I Haven’t Received a 2FA PIN Code?

Why Is My 2FA SMS/TTS (Text-to-Speech) Call Not in the Primary Language of the Destination Country?

What Happens If the Line Is Busy or There Is No Answer When Receiving a TTS Call?

How Do I Know Whether TTS or SMS Will Be Used?

How do I know whether TTS or SMS will be used?

tyntec’s 2FA API detects the number type (landline or mobile) and by default decides the delivery channel to send the OTP. For fixed (landline) numbers, tyntec will use a text-to-speech (TTS) call, while SMS is the primary delivery channel for mobile numbers.

This is set by parameter via with the following possible values:

 

    • AUTO (will use SMS in case of mobile number or voice/text-to-speech in case of landline)

 

    • SMS

 

    • VOICE (text-to-speech)

 

Because the 2FA API is a highly customizable product, you can overwrite this algorithm and choose the delivery channel independent of the number type. This, however, might impact the probability of successful verification.