Verify Every Phone Number. Deliver Every OTP. Save Up to 40% Costs.

Secure authentication via automated voice calls. 30% cheaper than SMS.

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From ₦3 per verificationHigher delivery than SMSNo app required

You're Probably Collecting Thousands of Invalid Phone Numbers

Customer enters wrong number
You can never reach them.
OTP SMS never arrives
Customer abandons signup.
Marketing SMS wasted
You pay for messages nobody receives.
Dispatch rider can't call customer
Orders fail.

Every invalid phone number costs money. VoicePass verifies numbers before they become a problem.

Verify Phone Numbers With a Simple Voice Call

Unlike SMS verification, VoicePass uses an automated phone call that reaches almost every mobile phone — even when SMS delivery is poor.

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1
Customer enters number
2
VoicePass calls instantly
3
Customer enters PIN or listens to OTP
4
Number verified
5
Continue registration

Why VoicePass

Six reasons businesses switch from SMS to voice verification.

30% Lower Cost Than SMS

Pay ₦3.8 only for answered calls, free for unanswered.

99%+ Delivery Rate

Voice calls often reach customers when SMS fails.

Verify Real Phone Numbers

Know your customers entered a reachable number.

Instant Integration

REST API with SDKs.

Fraud-Resistant

Immune to SIM swap, SMS interception, and SS7 exploits.

Real-time Reports

Track every verification and delivery.

Phone Number Verification

Perfect during onboarding. Verify customers before creating accounts.

Voice OTP

Deliver secure transaction OTPs using voice calls instead of SMS.

How It Works

1
Customer enters phone number
2
VoicePass places an automated call
3
Customer hears OTP
4
Verification completed

Built for Every Business That Collects Phone Numbers

Fintech
Transaction OTP, Login Verification, BVN Update, Wallet Registration
E-commerce
Account Signup, Checkout Verification, COD Confirmation, Customer Support
Logistics
Verify delivery numbers, Pickup confirmation, Driver communication
Insurance
Policy onboarding, Claims verification, Premium reminders
Healthcare
Patient verification, Appointment reminders, Prescription confirmation
Education
Student registration, Parent verification, Admission confirmation

Why Businesses
Are Switching From SMS

SMS OTP
9:41Message FailedRetrying...Retrying...Failed
VoicePass
9:41Incoming Call2 8 6 5Verification codeVoicePassVerification Complete
✕Expensive — pay per message even when it fails
✓Pay only for successful verifications at ₦3
✕Unreliable — messages delayed or lost
✓99%+ delivery rate, connects in seconds
✕Easily blocked — network dependent
✓Works on any phone, any network

Developer Friendly

  • ✓REST API
  • ✓Webhook support
  • ✓JSON responses
  • ✓SDKs
  • ✓Real-time reporting
  • ✓Sandbox environment
curl -X POST https://api.skurel.com/voicepass/send-otp \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "phone": "+2348012345678",
    "otp": "6294",
    "voice_type": "basic",
    "language": "english"
  }'
View API Docs →

Simple - Pay As You Go

✓

₦3.80

Per successful verification

You only pay when your customer answers. No charge if busy, unreachable, or unanswered.

Start Verifying Now

Stop Paying for Invalid Phone Numbers

Every unverified phone number costs your business money. Verify them instantly with VoicePass.

Get Started Now