About Us
About Us
Deliver reliable connectivity anywhere
We show you exactly how your calls, SMS, and messaging identities appear worldwide—so you can fix issues, stop spam flags, and ensure every message gets delivered and trusted.
We Verify Every Signal That Matters
- Voice Calls
- SMS Messaging
- OTT Messaging Apps
Your calls and texts show up as spam, you lose revenue
Hiya reports that 1 in 4 business calls is flagged as spam, even when it’s legit.
One out of every four business calls gets flagged as spam. As a result, your team could be losing customers before a conversation even starts. But these aren’t scam calls — they’re real sales follow-ups, appointment reminders, or urgent updates. Yet, they’re being ignored because the number looks suspicious. Unfortunately, most businesses don’t even realize it’s happening until performance drops. By that point, the damage is already done.
Take Control of Your Call Identity Before It Costs You More
With SignalVerify, you gain the power to see exactly what your customers see and fix what’s broken before it affects your results. Through the use of real SIM cards and actual devices in countries around the world, we reveal how your calls, SMS, and messaging apps appear on real phones. So, if your number is flagged, mislabeled, or blocked, you’ll know right away and receive clear insights to take action. In other words, no more guessing. Ultimately, with SignalVerify, your messages are seen, your calls are trusted, and your brand is protected across every network, platform, and location.
Real Visibility, Not Assumptions
SignalVerify uses real SIMs and devices worldwide not synthetic tests, so that you see exactly how your numbers appear across networks, devices, and apps. This way, you get a true picture of your customer experience.
Multi-Channels
Monitoring
Validate voice, SMS, WhatsApp, Viber, and more — all in one platform. At the same time, see how your sender identity, message format, and branding display across channels to ensure consistency and trust.
We Cover 447 Networks in 149 countries and counting!
With SignalVerify, you get instant, real-world visibility into how your calls, SMS, and app-based messages are delivered, labeled, and displayed across the globe. Our network of live test devices ensures your outbound communications are seen as intended. Without spam tags, mislabeling, or delivery issues. Whether you’re reaching customers in New York or Nairobi, SignalVerify helps you monitor, validate, and protect your number identity across every channel, every network, and every region.
Use the SignalVerify Platform, the API, or Both. Whatever Fits Your Workflow
Test in Seconds with Our Platform
No setup, no stress. Simply log in, run a test, and see exactly how your numbers look around the world. From beautiful dashboards and real-device screenshots to global insights, everything is ready when you are.
Plug In with Our Powerful API
Love to automate? Then our API is for you — it lets your team run tests, pull data, and track every number, all on your terms. It’s fast, flexible, and built for seamless integration into your existing tools.
Request:
curl -s -X POST https://api.signalverify.io/api/customer-prod/signalverify.php \
-H "X-API-Token: some-strong-random-token" \
-d "action=book-slot" \
-d "country_id=8" \
-d "mno_id=259" \
-d "start_time=2025-07-21 12:00:00" \
-d "duration_minutes=3"
Response:
{
"status": "confirmed",
"external_id": "64fa02d8-1325-4a17-b33b-613406cde946",
"b_number": "+33788885353",
"start_time": "2025-07-21T10:00:00+00:00",
"end_time": "2025-07-21T10:03:00+00:00"
}
Don't take our word for it...
What You Get with SignalVerify?
Real-Time Number Testing
See how your numbers appear across networks, countries, and devices, before your customers do.
Spam & Label Monitoring
Detect if your numbers are flagged as “Spam” or “Scam Likely” and take action instantly.
Multi-Channel Coverage
Test voice, SMS, and messaging apps like WhatsApp and Viber, all in one platform.
Global Device Network
Run tests from real SIMs and phones in your target regions, not fake environments.
Actionable Visual Evidence
Get screenshots and delivery reports that show exactly what users see on their screens.
Easy API & Dashboard Access
Use our no-code platform or trigger tests via API, your team chooses how to work.
Frequently Asked Questions
How do I know if my number is being flagged as spam or scam?
SignalVerify shows real-time labeling results from actual devices across carriers, so you can see exactly how your number appears, no guesswork.
Can I test both voice and SMS numbers?
Yes, our platform supports testing for voice, SMS, and messaging apps like WhatsApp and Viber, giving you full multi-channel visibility.
Do I need to install anything to start testing?
No installation needed. You can start testing instantly via our web dashboard or integrate with your existing systems using our API.
What regions or countries can I test in?
We offer global coverage with real devices in North America, Europe, Asia, LATAM, and more, so you can test wherever your customers are.
Can I automate testing with your API?
Absolutely. Our API lets you schedule, trigger, and analyze tests programmatically, making it ideal for teams that want full automation.
How fast can I get results after running a test?
Most test results are delivered in real time, with screenshots and metrics available in seconds so you can act immediately.
Ready To Get Started
SignalVerify helps businesses ensure their calls, SMS, and messaging apps are seen and trusted globally.
We provide real-time visibility into how your numbers appear across carriers, devices, and spam detection systems.