Verify every user with one secure missed call.
Replace typed OTPs with fast, low-friction phone verification built for global apps, high-volume onboarding, and intelligent fallback.
Verification request
Confirm your number
+234 802 ••• 1048
Incoming call
+234 701 274 1000
Every extra step puts a successful signup at risk
Authentication should confirm a real phone number without slowing users down or making every attempt more expensive.
Typed OTPs interrupt onboarding
Waiting for a code, switching apps, and typing digits adds friction at the exact moment a user is ready to continue.
Message delivery is not always predictable
Congestion, filtering, and route quality can delay verification messages and create avoidable retries.
Verification costs grow quickly
High-volume authentication needs a lower-cost primary route with reliable fallback when a destination is unsupported.
Phone verification that feels almost invisible
Ruach Flash Call turns a missed call into a secure verification signal, helping teams confirm users quickly while retaining full control over routing and fallback.
Frictionless verification
Trigger a short missed call and verify the user from the incoming number, without asking them to answer.
API-first delivery
Start an attempt, receive status updates, and connect the result to your signup or authentication flow.
Fallback-ready coverage
Keep verification moving by routing unsupported or unsuccessful attempts to your configured messaging channel.
Incoming verification call
+234 701 274 1000
Do not answer
Confirm users without asking them to answer
A verification attempt triggers a short incoming call. Your app matches the originating number or its final digits, then completes the flow without a spoken code.
- No answered call required
- Automatic verification on supported devices
- Manual digit entry when needed
- Simple API-driven workflow
Verification flow
Automatic channel sequence
Flash Call
Primary route
SMS OTP
First fallback
Second fallback
Keep authentication moving across every route
Configure a fallback path for markets, devices, or carriers where Flash Call is unavailable, so one unsupported route never becomes a dead end.
- SMS and WhatsApp fallback
- Route-level retry logic
- Configurable attempt sequencing
- One verification state across channels
Attempt FC_8F24A
Live event stream
Know what happened at every step
Follow each attempt from request to verified outcome with clear events your application can use to update the user experience instantly.
- Webhook status events
- Attempt and delivery history
- Actionable failure reasons
- Consistent verification IDs
Verification rate
96.4%
Successful
48,206
Median time
4.2 sec
Optimize conversion, routing, and cost
Measure successful verifications, route performance, and fallback usage from one operational view, with data ready for reporting and reconciliation.
- Verification conversion metrics
- Country and carrier insights
- Route performance visibility
- Usage and cost reporting
Common questions about Flash Call
Flash Call verifies a phone number with a short missed call. Your application matches the incoming caller number, or a defined set of its digits, to the active verification attempt without requiring the user to answer.
Infrastructure you can rely on
Powering communication for regulated, high-volume sectors
1B+
Minutes/messages routed annually
99.99%
Platform uptime SLA
30+
Direct telco interconnects
<2s
Median OTP delivery
Build on Africa’s telecom backbone
Launch messaging, voice, and USSD services nationwide with a single integration.
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