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.

What happens if the line is busy or there is no answer when receiving a text-to-speech call?

In the case of the text-to-speech (TTS) call doesn’t go through, a “DELIVER_OTP_RES_FAIL” event will be reported. The OTP will remain for the duration set by the customer (default is five minutes) — and can be resent again. You are not charged for these additional deliveries/delivery attempts. Check out more details here.