Expand your portfolio
Offer Flash Call alongside SMS verification for registration, sign-in and phone number confirmation.
FLASH CALL VERIFICATION
Add Flash Call to your verification offer. Your clients’ users confirm their phone numbers with the last digits of an incoming call number.

HOW IT WORKS
The caller number carries the code. Users enter its last digits to complete verification — they do not need to answer the call.
The user enters their phone number in your client’s app or website.
Your platform requests a Flash Call through Revicom.
The user enters the last 4–6 digits of the incoming caller number.
Your service checks the code and completes the verification.
BUILT FOR TELECOM BUSINESSES
Expand your verification portfolio with a call-based alternative to SMS OTP, and evaluate its economics on the destinations that matter to your clients.
Offer Flash Call alongside SMS verification for registration, sign-in and phone number confirmation.
Build your retail offer around your clients’ requirements. You decide what to charge for the service.
Use white-label presentation materials and integration documentation to support client discussions and onboarding.
Mobile apps · Web services · E-commerce · Loyalty programmes
VERIFICATION CONTINUITY
Give users another way to finish verification if the Flash Call does not arrive or they cannot complete the step.
Configure the switch to SMS on your side. If you use Revicom as your SMS Hub, discuss managing the fallback with our team.
Show users which digits to enter and when they can request an SMS instead.

INTEGRATION
Choose the connection that fits your infrastructure. We will help your team review the requirements before integration.
Add Flash Call requests to your platform through an API connection. Use the integration documentation to plan your request and verification flow.
Request API documentation →Connect through SMPP if it fits your existing infrastructure. Already working with Revicom? Ask us how to add Flash Call to your current connection.
Discuss SMPP integration →Before launch, check call delivery, caller number display, code entry and the SMS fallback on the devices and networks your clients use.

COVERAGE & PRICING
Share your destination countries and expected volumes. We will review availability and prepare a commercial offer for your traffic profile.
Compare the full verification flow with your current setup, including any fallback traffic.
Request a tailored quoteGETTING STARTED
Review destinations, volumes, commercial terms and your verification flow.
Choose API or SMPP and work through the integration requirements.
Test representative destinations, devices and the fallback experience.
Move to live traffic once the technical and commercial setup is agreed.
FAQ
Start with the essentials. Our team can help review your destinations and integration requirements.
Talk to our team →Flash Call verifies a phone number using an incoming call. The last digits of the caller number act as the verification code, which the user enters in an app or website.
No. The code comes from the caller number, rather than a spoken message. The user reads the required digits from the incoming or missed call.
The code can contain four to six digits. Confirm the code format when planning your integration and make the instructions clear in your interface.
Offer an SMS alternative. You can configure the fallback on your side or discuss a Revicom-managed setup if you use us as your SMS Hub.
Send us your destination countries and expected traffic volumes. We will review availability and provide the rates relevant to your planned traffic.
SMPP is an available connection option. Contact our team to review how Flash Call can fit your existing Revicom integration.
LET’S TALK
Tell us where your clients send verification traffic and how you want to connect. We will help you plan the next step.
info@revicom.ltd