MISSED CALL
VERIFICATION

Cost-Effective Authentication

Verify phone numbers instantly with our cost-effective missed call verification service. No SMS costs, no complex integrations - just simple and user friendly verification.

Mobile Optimized
Global Coverage
Easy Integration
Zero SMS Cost
MOBILE
Optimized
SPEED
Instant
SETUP
Easy & Customizable
REACH
200+ Countries

How It Works

Simple 3-step verification using missed call with PIN extraction from phone number.

1

Receive Missed Call

User gets a missed call from a random number for verification.

2

Extract PIN

Last 4 digits of the number serve as the one-time password.

3

Validate Number

User validates their mobile number using the extracted PIN.

Need Technical Documentation?

Get implementation guides and API details.

View Documentation

Benefits of Missed Call Verification

A cost-effective solution that enhances your verification strategy

Cost-Effective

Reduces verification costs by using missed calls instead of SMS, with no charge from telecom providers when calls aren't answered.

Enhanced Success Rates

Provides an alternative verification channel when SMS delivery might be delayed or fail, increasing overall verification success.

Complementary Method

Works best as part of a comprehensive verification strategy alongside SMS and IVR calls for maximum reliability.

Perfect Verification Flow - Mobile security and verification process illustration

Perfect Verification Flow

The ideal verification strategy combines multiple methods to ensure maximum success rates while optimizing costs.

1

Start with Missed Call

Begin verification with the cost-effective missed call method

2

Automatic SMS Fallback

If missed call verification fails, automatically fall back to SMS

3

IVR Call as Final Option

For critical verifications, use IVR call as a final fallback method

Before You Implement

Essential considerations for successful missed call verification implementation

Cost Reality

Not 100% free

Charges apply when calls are answered. Proper implementation keeps this to just 3-5% of calls.

Typical Call Distribution

95%
Free
95% Free
5% Charged

When Charges Occur

Voicemail Redirect
Wrong Number Entry
Instant Answer

Platform Support

Varies by device

User experience varies by platform. Optimized for mobile, not recommended for web.

User Experience

Android
Excellent

Automatic call interception enables seamless 1-click verification with proper permissions

iOS
Fair

Manual process where users must enter the last 4 digits from their call log

Web
Not Recommended

Cross-device experience creates confusion between mobile and desktop

Multi-Method

Never standalone

Helps reduce costs or drive user conversions when traditional methods fall short.

Use Cases

Primary Method

Used with automatic SMS fallback for cost saving

Missed Call
SMS

Fallback Method

Used as fallback for SMS for increasing conversions

SMS
Missed Call

Implementation Guidelines

Best practices for implementing missed call verification in your application

Confirm the Number

Confirm phone number verification

Always ask users to confirm their phone number before initiating verification to avoid wrong numbers and unnecessary charges.

Use our API to validate if the number format is correct before sending verification.

Don't Retry Missed Calls

Don't retry missed calls, use SMS fallback

If missed call verification fails, fall back to SMS instead of retrying the missed call to avoid potential charges.

Multiple missed call attempts increase the chance of users answering the call.

Platform-Specific Design

Platform-specific design for Android, iOS, and Web

Design your verification flow differently for each platform to optimize user experience and success rates.

AndroidExcellent
iOSFair
WebAvoid
Remote Config SDK

Skip the Release Process

Update verification logic remotely without app store releases. Easily integrate SMS, Missed Call, or IVR with our powerful iOS and Android SDK

Key Benefits

Instant Validation Flow Updates

No app store releases required

Cross-Platform

iOS and Android support

Quick Integration

Go live in hours, not days

Remote Configuration

Update verification settings, timeouts, and fallback rules instantly without code changes.

Easy Integration

Simple SDK with comprehensive documentation and sample code for quick implementation.

Mobile Friendly

Works seamlessly across iOS and Android devices with platform specific optimizations.

A/B Testing

Test different verification flows and optimize conversion rates with built-in analytics.

Ready in hours, not days

Start Building with Remote Config SDK

Download our SDK and get started with remote configuration for your verification flow. Complete documentation and sample projects included.