Reverse flash call — phone verification without SMS | Verificahub
Method · Reverse Flash Call

Phone verification via reverse flash call

The user places a call to our +7 number — the call is dropped automatically and the number is confirmed by Caller ID. No SMS, no code entry, and up to 80% cheaper than SMS.

0.25 ₽
per verification
≈1 sec
speed
up to 80%
cheaper than SMS
Incoming call
Number confirmed by Caller ID — no code, no SMS.
+7 927 938-35-62
01 — What it is

What is reverse flash call

Reverse flash call (wait call) is phone-number verification without SMS or a code. The user taps a button, the app places a call to our dedicated +7 number, the call is dropped automatically before it connects, and we confirm the number by Caller ID. The user types nothing, and you avoid expensive SMS.

02 — Benefits

Why reverse flash call

The cheapest method
Verification costs from 0.25 ₽ — up to 80% cheaper than a classic SMS.
Confirmed in a second
The call drops automatically; the number is read with no user action.
No code, no SMS
The user enters nothing — fewer steps, higher sign-up conversion.
Pay for results
You are charged only for successful verifications — failed attempts are free.
03 — How it works

Three steps

01.
Verification request
Your app calls our API and receives a +7 number to dial.
02.
The user calls
The app places a call to that number; the call is dropped automatically.
03.
Confirm by Caller ID
We identify the number from the incoming call and return the result via API.
04 — Who it fits

Where it is used

E-commerce & marketplaces
Delivery & logistics
SaaS & online services
Gaming & entertainment
Classifieds & listings
Services & booking
05 — Price

Transparent pay-per-result price

0.25 ₽per verification
No subscription and no packages. The price is the same across all Russian mobile operators. You pay only for successful verifications.
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06 — FAQ

Frequently asked

How is reverse flash call different from regular flash call?

With reverse flash call the user calls our number and we confirm them by Caller ID. With regular flash call we place the call and the code is the last digits of the incoming number. The reverse method is cheaper and needs no code entry.

Does the user have to enter anything?

No. The call is placed automatically and dropped before it connects — the user enters no code and waits for no SMS.

How much does a verification cost?

From 0.25 ₽ per successful verification, with no subscription or packages — up to 80% cheaper than a regular SMS.

Does it work on all operators?

Yes, the method works on numbers of all Russian mobile operators at a single price.

What if a verification fails?

Failed attempts are not charged. You can offer the user another available method — all Verificahub methods run through one API.

Launch in 24 hours

Launch reverse flash call in one day

One API for every verification method. Pay for results, with no tariffs or packages.