#otp authentication

In today’s digital-first world, protecting user accounts and transactions has become more challenging than ever. Passwords alone are no longer enough, and even SMS-based OTPs sometimes fail due to delays or delivery issues. That’s why many businesses in India are adopting Voice OTP as a trusted solution for authentication.

What is Voice OTP?

Voice OTP (One-Time Password) is a verification method where users receive a phone call delivering a secure code. Instead of waiting for an SMS that might get delayed, customers hear their OTP instantly through an automated voice call.

Why Voice OTP Matters in India

India has a diverse telecom environment, and SMS delivery can sometimes face delays due to network congestion, DND restrictions, or spam filters. Voice OTP solves this problem by:

Ensuring faster OTP delivery through direct phone calls

Reaching customers even in low network coverage areas

Offering higher success rates compared to SMS OTPs

Strengthening security for sensitive transactions

Benefits for Businesses

Improved Security – Protects against SIM swap and SMS interception

High Reliability – Works across all carriers and regions in India

Better User Experience – Customers receive OTPs instantly, reducing friction

Scalable – From small startups to large enterprises, Voice OTP fits all needs

Compliance-Friendly – Meets telecom and data protection regulations

Use Cases of Voice OTP in India

Banking & Fintech – Transaction approvals, account logins, fraud alerts

E-commerce – Checkout verification, return confirmations, delivery alerts

Healthcare – Patient portal logins, appointment confirmations

Government Services – Citizen authentication for secure portals

Why Choose Voice OTP Over SMS OTP?

Brand transparent communication and protection of customer data are critical for all companies in the contemporary, digital centric environment. In many ways, passwords are the keys that access the data of a company. However, unfortunately, any mediocre cybercriminal can easily decipher these passwords. Passwords itself are a very weak form of authentication, and the fact that many internet users do not update passwords on a regular basis or reuse their passwords only makes things worse. Hence, to steer clear of such hassles and protect their customers, many companies today allow for Two-factor or 2 Factor Authentication. This is a security process, as per which the user needs to provide two different authentication factors to verify their identity and gain access to a particular app or data. Such a process helps protect the credentials of the users, as well as other sensitive information. It provides an extra layer of security that balances the vulnerabilities of a password-only approach.

Today mobile devices have become a necessity for most of us. It is a big switch from need to necessity. This shows how regularly mobile phones are being used.

Mobile phones are most targeted devices today. Due to usability and high ROI on mobile devices, marketers and developers are utilizing it to the fullest.  

Taking opportunity of mobile trend, security has also made its way to mobile devices. Today mobile devices are a part of security protocol and works as a device to authenticate users.

Why mobile device for security?

The answer is simple. Mobile device is something which is always handy. Great ease of access and usability makes mobile devices the right choice.

Today many platforms and services uses mobile devices to know authenticity of their users. By verifying their mobile devices they are verifying users.

Today services like Two Factor authentication, otp authentication, OTP Login etc. are solely based on Mobile devices.

These services make use of OTP to verify a user. A randomly generated code is sent on registered mobile number, which in response have to be submitted while authenticating.

Customers can also choose to opt for an automated IVR call where an automated bot will dictate them OTP code.

Along with that, app like Google Authenticator is another way security is being improved. This app is made by Google for enabling two factor authentication for google accounts.  Recently 2- FA is made mandatory for G-Suite account holders.

In this app random 6 digit pin is generated every 30 seconds, giving time to input code and security to user while authenticating.

Somehow if app isn't available, users can opt for receiving SMS.

Not only individuals, businesses are also embracing it in their processes and actions.