A robust online authentication tool can send your users OTPs in an email, a text message or even a flash call. The user enters the code, access is granted – security for all, but not just anyone.
An Authentication as a Service platform can send users OTPs via many channels:
- SMS
- Flash Calls (Voice OTP)
- Pin2Speech (Robocalls)
- OTT messengers (Whatsapp, Viber, Telegram, etc.)
- Direct calling (here, the end-user calls a number from a webpage)
- Push notifications
The costs associated with each method vary widely from country to country. And SMS and voice costs regularly fluctuate, regardless of location.
Fortunately, you can create an omnichannel flow where each verification method can be used one after the other in the most effective way, depending on the destination.
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