Global Telecom Testing (GTT) supports over 200 countries with more than 800 local testers for testing mobile apps, phone numb ... er testing, global roaming and IVR platforms. GTT enables our clients to establish a local presence and highly reliable testing environment by leveraging the world's largest privately owned global footprint. By utilizing GTT's local testers, you will have access to the resources you need to increase customer retention and revenues. Customers gain universal understanding of their in-country user experience, make actionable corrective decisions with measurable ROI, and collaborate on those decisions with telecom carriers. http://www.globaltelecomtesting.com/ read more