Our SMS gateway delivers large volumes of messages in a timely manner. By combining SMS with Voice, delivery of your OTP is guaranteed at all times.
Benefit from enterprise scalability with our easy integration and configuration. Generate and deliver OTPs via SMS or Voice, and verify the response.
By adding an extra layer of security you can extend your level of GDPR compliance. Implementing SMS or Voice OTP protects your customer's data.
Optimize your conversions by using an OTP channel of your customers' choice: SMS, Push Messages, Voice Calls, Email, WhatsApp.
Easily authenticate new users, secure account logins, and safeguard transactions with One Time Passwords.
Contact Us to Get StartedReach your customers wherever they are and send your OTPs via a channel of your choice. Even when users don't have access to the internet, they can still make use of this multi-factor authentication solution.
Fast and reliable global delivery on any mobile device
Determine code length from 4 to 8 digits
Send from a local phone number or sender ID
With Voice OTP, the password is received as a spoken message. It allows you to also reach users with limited sight and destinations that are not reachable by SMS.
Use Voice as a backup in case your SMS is not delivered
Available in different spoken languages and voices
Push your delivery rates close to 100 percent
Fast delivery of time-critical messages are guaranteed
Our platform is connected to 2000 operators worldwide
Rely on our ISO 27001 certified redundant platform
Benefit from our round-the-clock and in-house support
Get clear control and insights on your costs and traffic
When creating an account, Tantan asks for the mobile phone number of the user. This number is verified by sending a One Time Password via a text message.
Asian Dating App Tantan
The registration for the Formula 1 required a unique OTP via SMS code. Due to this filtering, more than 11% of the requests have already been blocked because they turned out to be fraudulent.
Formula 1 Heineken Dutch Grand Prix
Easily integrate our SMS or Voice One Time Password API into your existing systems and start sending One Time Passwords worldwide. There are several example codes available for different programming languages for both our SMS as Voice API.
To the Docs on GitHub| Country | OTP via SMS (from) | OTP via Voice (from) |
|---|---|---|
| Country | OTP via SMS (from) | OTP via Voice (from) |
United States |
€ 0,0073 |
€ 0,0017 |
China |
€ 0,0389 |
€ 0,0344 |
Russia |
€ 0,0274 |
€ 0,0299 |
South Africa |
€ 0,0193 |
€ 0,0619 |
United Kingdom |
€ 0,0534 |
€ 0,0051 |
Pricing based on individual messages for a specific destination.
Enhance your application security and manage user verification via SMS and Voice, with our reliable and secure two-factor authentication solution.
Contact Us to Get StartedSelect a region to show relevant information. This may change the language.
Is this region a better fit for you?
+31 (0) 76 572 70 00
