International Phone Number Testing

International Phone Number Testing

In-Country human testers for toll free and local phone numbers assure accuracy.
GTT's In-Country phone number testing provides phone number testing and toll free phone number testing services in 200 countries using our 800+ professional testers located in key cities around the globe. Our testers are hand selected by GTT for their telecom and UAT testing experience. Local worldwide testers, all interviewed and screened by GTT, to assure that all testing results are the most accurate and reliable possible. All testers speak English and the native language of the country where they live and test. Once a part of GTT's team, they are routinely put through detailed training with stringent guidelines to provide the highest quality of testing and customer service for our customers.

Each month GTT’s quality control team assesses and scores the tester’s reliability to ensure we are providing our clients with the best possible, and unequaled, phone number testing and toll-free number testing services in the world. GTT constantly optimizes testing services by incorporating feedback from our clients and adjusting and adapting our testing parameters to benefit our clients.

In-Country local phone number testing can only be truly reliable by engaging GTT’s professional testers that use real devices under real-world conditions to ensure that your worldwide operations are successful. Automated testing on our Testing Portal allows you to test phone numbers at a lower cost, driving down your overall testing expense, and to re-test failed phone numbers with our in-country local testers. Companies that solely rely on automated testing cannot deliver the accurate results that GTT’s local testers deliver.

GTT’s in-country local testers provide the accuracy and data your company requires. Clients from around the world rely on GTT for one-of-a-kind testing results.