OTP for PSP & VAS — delivery behind every payment
One-time passwords and transactional messages for payment (PSP) and VAS providers: 200+ countries, 800+ operators, an SMS → Viber → Voice cascade with automatic failover. Pick a scenario — from the effective price per delivered message to keeping your subscribers.
Where are you losing on OTP?
Five directions where BSG removes OTP delivery losses — from the effective price per delivered message to keeping your subscribers.
The real price of OTP
The rate-card price ≠ the price per delivered. Calculate the effective cost including delivery rate, retries and paid statuses.
Every undelivered OTP is a lost payment
The SMS → Viber → Voice cascade with failover catches every code and keeps authentication conversion independent of any single channel.
Protection from AIT traffic
Bots mass-request OTPs to “premium” ranges and inflate your bill. Number Verifier filters fraud before sending.
Delivery Review for PSP
Your OTPs already arrive — but how much stack potential is off? A 60-second health-check and a quarterly delivery review.
Less subscriber churn
Undelivered renewals, dead MSISDNs, silence after month one — that’s ARPU you won’t get. Close the leaks with your existing stack.
Use Cases
Confirm account sign-in and password recovery without friction.
An OTP on every payment — where the cost of an error is highest.
Strong customer authentication per PSD2 and card-scheme requirements.
Renewal reminders and reactivation for VAS subscribers.
What powers reliable delivery
The technology that gets the code through — and lets you see every step.
Cascade SMS → Viber → Voice
Automatic failover
Number Verifier
Delivery analytics
The code arrives even when one channel is silent
SMS didn’t land — the system delivers the code via Viber, then Voice. Authentication conversion no longer depends on a single operator or route.
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Route switching without your involvement
If a route degrades, traffic automatically moves to a backup — in real time, with no manual work and no delivery downtime.
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Fraud traffic filtered before sending
Number Verifier checks numbers and removes AIT bots and dead ranges before you pay for the SMS. No send — nothing to profit from.
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Transparent numbers, not averages
Delivery rate, retries and statuses per geo and operator. See the real price per delivered — and where it leaks.
Learn moreFAQ
Do we have to switch our current provider to try BSG?
No. The standard scenario is a parallel run: send part of your traffic (e.g. one problem geo) through BSG alongside your current vendor, compare delivery rate and cost on your own numbers — and scale only what wins. No all-or-nothing migration.
How long does integration take and what’s needed from our team?
REST API, docs and a sandbox: a typical integration takes up to two weeks with one developer. If you already work with any CPaaS API (Twilio, Vonage, Infobip), the switch comes down to replacing endpoints and mapping statuses. Cascade and failover are configured on our side.
How do you handle data? We have compliance requirements
We sign a GDPR DPA and NDA, and provide delivery logs and an audit trail for every message. OTP content isn’t stored longer than needed for delivery. A full vendor due-diligence pack is available on request.
How do you fight AIT fraud?
Number Verifier checks numbers and filters bot traffic and dead ranges before sending — you don’t pay for fraudulent OTPs.
How many countries do you deliver to?
200+ countries via 800+ operators over direct routes, with automatic failover in key geos.
Your Trusted OTP Traffic Provider
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Useful Materials
OTP means one-time password — see how it works, compare delivery channels, and cut verification costs with cascade routing.
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