Our Satisfied Customers
Dialing formats can vary from region to region and/or network to network. Please contact us with any questions or for more details on specific dialing patterns.
These are the most tested from networks in Brazil. If you require testing from other networks or have any questions regarding networks in Brazil, please contact us for more details.
All GTT testers speak English and at least one of the native languages/dialects spoken in Brazil. If you require specific language/dialect support in Brazil please contact us for more details.
Dialing formats can vary from region to region and/or network to network. Please contact us with any questions or for more details on specific dialing patterns.
All GTT testers speak English and at least one of the native languages/dialects spoken in Brazil. If you require specific language/dialect support in Brazil please contact us for more details.
These are the most tested from networks in Brazil. If you require testing from other networks or have any questions regarding networks in Brazil, please contact us for more details.
GTT’s local testers make live outbound originating test calls from worldwide cities using local landline and mobile networks in order to verify that the local numbers are operational, and to detect issues…
When launching mobile services in new countries, it is imperative to in-country locally test to ensure all services are operational. Improper network provisioning, network inaccessibility, and carrier activation…
In-Country IVR testing of newly installed and/or repaired worldwide IVR platforms confirms they are operational or not. GTT’s local testers make live quality assurance test calls to your IVR platforms after they have been installed…
GTT’s local staff in-country field tests your WIFI hotspots for signal strength, functionality, and connectivity. Customers coordinate detailed testing scenarios with GTT local staff…
Our Co-location services offer unmatched advantages for local installation and hosting of equipment, SIMs, and troubleshooting for a reliable telecom infrastructure…
Reliable mobile app testing is a massive challenge facing mobile apps & games companies worldwide. In fact, statistics show three out of five computerized/electronically tested mobile apps & games…
Ensure your phone lines are fully operational and accessible worldwide. Get reliable, real-time testing with our expert team in Brazil.
The comprehensive testing data provided by GTT serves as a valuable resource, empowering us to analyze connectivity trends and proactively address potential roadblocks. Their team consistently exhibits a friendly and helpful demeanor in their correspondence, enhancing our partnership. The value that GTT’s testing services bring to our operations instills us with the confidence to deliver viable and dependable international telephony solutions to our customers. Together with GTT, we are committed to maintaining the highest levels of connectivity and reliability for our clientele.
My colleague used Global Telecom Testing for his new mobile app in 89 countries. I used to rely automated testing but he told me about GTT and I was surprised to learn that GTT uses live testers. I had them test my toll free number list of 2,900 numbers and I got back a 100% accurate result, even in countries like Bangladesh, Latvia, the UK, Nicaragua, Ghana, Bahrain, Korea, and Croatia. Thank you Stephen Levenson for your terrific service.
GTT has local testers in all the countries I wanted to test in and I was able to get accurate results for my mobile apps and toll free phone numbers. First I used their automated testing system to save some money. The gave me credits for failed calls and then I used their inn country international human testers for the rest of the numbers to get complete accurate results. Their mobile app testing service was great too as the actually had professional testers in each country I tested in.

The comprehensive testing data provided by GTT serves as a valuable resource, empowering us to analyze connectivity trends and proactively address potential roadblocks. Their team consistently exhibits a friendly and helpful demeanor in their correspondence, enhancing our partnership.
The value that GTT’s testing services bring to our operations instills us with the confidence to deliver viable and dependable international telephony solutions to our customers. Together with GTT, we are committed to maintaining the highest levels of connectivity and reliability for our clientele.
Typically, completing a telecom test for Brazilian phone numbers takes a few minutes to a few hours. The exact time depends on the type of test and network conditions. Simple tests, such as call quality or SMS delivery checks, may take less time. More complex testing, including voice quality monitoring, requires additional time. We complete tests efficiently while delivering accurate and reliable results.
Yes, all our Brazil telecom test results meet international standards. We follow industry best practices for the accuracy and reliability of our testing processes.
Our commitment to these standards allows us to deliver results that align with global telecom benchmarks. If you are testing call quality or SMS delivery, you can trust our data to support your business needs.
Yes, we test international phone numbers originating from Brazil. Our services cover both local and international numbers, giving businesses the ability to evaluate performance from Brazil to destinations around the world. This helps companies with global operations verify that their telecom services meet international communication requirements.
We conduct a variety of telecom tests in Brazil, including call quality testing, SMS delivery testing, and real-time monitoring of network performance.
These tests measure voice clarity, message delivery success, and number functionality. Real-time monitoring captures current results and gives you actionable insights to maintain and improve service quality.
Our testing covers a wide range of Brazilian phone numbers, including mobile, landline, UIFN, and toll-free numbers. This guarantees a comprehensive evaluation of your telecom services. We support testing for all standard number types and help you maintain performance across voice and messaging channels.
When testing voice quality for Brazilian phone numbers, we conduct real-time monitoring to assess call clarity, latency, and overall audio performance. Our unique approach places telecom hardware directly in the homes of in-country staff, allowing us to capture data under real-world conditions. This method delivers accurate insights into the true voice quality on Brazilian networks.
Yes, we test SMS delivery to Brazilian numbers. Testing verifies that messages are sent and received successfully, without delays or failures. We evaluate SMS performance across multiple networks. This produces data that helps optimize messaging services for both local and international communications.
Yes, we can deliver test results broken down by Brazilian region or city. Our testing services capture detailed regional data. We give you insights into telecom performance across urban centers, suburban areas, and more remote locations.
This level of detail is especially useful for businesses that want to monitor service quality, identify weak spots, or optimize network coverage for specific areas. It allows decision-makers to allocate resources effectively, plan infrastructure improvements, and enhance customer experience across all parts of Brazil.
To call another country from Brazil, dial Brazil’s international access code 00, followed by the destination country code and the local phone number. For example, calling the United States requires 00 + 1 + area code + local number.
Using the correct international dialing code guarantees your call connects properly. This system supports reliable communication with overseas business partners, family, or friends, and it is compatible with landlines, mobile phones, and most VoIP services.
Testing international calls from Brazil can help identify any connectivity issues or delays that might affect call quality.
To dial a local number in Brazil, enter a 0 followed by the local number.
This method works for both landlines and mobile phones. Understanding the correct format helps avoid connection errors and ensures smooth communication within Brazil. Testing local numbers can also reveal variations in call quality or latency between different regions and network providers.
To dial a toll-free number in Brazil, use the designated toll-free code, usually starting with 0800, followed by the remaining digits of the number. Calls to these numbers are free from landlines. Therefore, they are ideal for customer service, support hotlines, or business inquiries.
Toll-free numbers simplify communication between companies and clients, encouraging faster response times and improved customer satisfaction. Testing toll-free numbers ensures that they are fully operational, reachable from all regions, and capable of handling expected call volumes without service interruptions.
To dial a UIFN (Universal International Freephone Number) from Brazil, enter the UIFN prefix (+) or 00 followed by the full number.
UIFNs enable customers from multiple countries, including Brazil, to reach your business without incurring charges. This service is particularly valuable for international support lines, global customer service, and cross-border business communications.
Testing UIFN numbers ensures that these freephone lines are fully functional and accessible from various networks. It also confirms that they maintain high-quality connections across multiple countries, helping businesses deliver seamless international customer support.
For any specific testing needs or to request a quote, feel free to contact us directly. We are here to support all your telecom testing requirements in Brazil.
Ready to get started or learn more about how we can help your business?
Call us at (954) 358-6292 or fill out the form below and a company representative will be in touch within 24 hours.