Global Telecom Testing
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Mobile app testing service & phone number testing service, global roaming and IVR platform testing in 200 countries with more than 800 local testers.
Global Telecom Testing (GTT) was founded in 2007 specifically to address the lack of worldwide, in-country, live telephone number testing and IVR platform quality assurance testing for global companies. GTT is the only company in the world that in-country tests in 200 countries simulating the user experience with over 800 local testers. GTT enables its clients to establish a local presence and a highly reliable testing environment by leveraging the world's largest privately owned global footprint. Customers gain a universal understanding of their in-country user experience, so they can make actionable corrective decisions with measurable ROI and collaborate on those decisions both internally and with telecom carriers. Each year GTT's phone number testing services and toll free number testing service tests over 50,000 numbers performing 100,000+ test calls. GTT's User Acceptability Testing (UAT) tests over 600 worldwide IVR platforms and tests 400+ mobile apps & games annually. Our real world live mobile app testing services are the most reliable in the world. It all began with a handful of countries…
We offer a wide range of telecom testing services and in-country support to include, but are not limited to:
• SMS testing (every MNO in every country)
• Voice testing
• Toll free number testing
• Global Roaming Testing
• SIM testing (every MNO in every country)
• SIM sourcing – we can ship activated SIMs to your offices or host them locally
• Hosting (co-locate) equipment, mobile handsets, gateways, and SIMs all connected to 24/7 wi-fi and power
09/18/2026
Our team is getting ready for World Telemedia Marbella, Oct 4–6! If you're attending, let's make time to connect — testing, roaming, OTP delivery, whatever's on your radar. Book a meeting with GTT. 🧳✈️ https://l1nq.com/he8zf82
09/15/2026
What is international phone number testing? It's live, real-world verification that your global numbers actually work — routing, audio, IVR, latency, and more — before problems reach your customers. Learn more 👇
09/11/2026
Mark your calendars! 📅 GTT is heading to World Telemedia Marbella, Oct 4–6, 2026. If you're in mVAS, payments, content, or messaging — let's connect and talk global telecom testing. Book a meeting with our team today. https://l1nq.com/he8zf82 🌍
09/08/2026
A delayed OTP or notification is almost as bad as a lost one. GTT measures SMS delivery speed and latency to catch slowdowns caused by routing or congestion. ⏱️📩
09/02/2026
Counting down to World Telemedia Marbella! 🗓️ Oct 4–6, 2026. GTT will be there ready to talk roaming, VoIP, IVR, SMS, and OTP testing across 200+ countries. Let's schedule time to connect. 📞
08/31/2026
Carrier provisioning errors. Network inaccessibility. Activation failures. These roaming issues often go undetected by automated testing alone. GTT catches them in-country, before your customers do. ✈️📶
08/26/2026
Your IVR is often the first voice your customers hear. Make sure it's the right experience. GTT tests IVR systems live, in-country, across 190+ countries. 📞🌍
08/24/2026
Marbella, we're on our way! ☀️ GTT will be at World Telemedia Marbella Oct 4–6, ready to talk telecom testing, roaming, IVR, SMS, and more. Let's grab a table and talk shop. Book your meeting now. 🌍
08/20/2026
Your customers expect every call to connect — every time. GTT tests international phone numbers using real, in-country testers on live networks, not simulations. 20+ years in telecom, 900+ testers, 200+ countries. 🌍📞 https://globaltelecomtesting.com/phone-number-testing/
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Address
Lighthouse Point, FL
Opening Hours
| Monday | 7am - 5pm |
| Tuesday | 7am - 5pm |
| Wednesday | 9am - 5pm |
| Thursday | 9am - 5pm |
| Friday | 9am - 5pm |
| Saturday | 8am - 7pm |
| Sunday | 9am - 4pm |
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