Founded in 2007, Callvox is an international wholesale voice carrier that is based on the principles of teamwork and an intense dedication to servicing the requirements of fixed & mobile operators, MVNOs, and other retail carriers worldwide. Our team is comprised of second and third generation telecom voice traders who have extensive experience building, managing and trading voice capacity on five continents. Callvox is headquartered in New York City, with back offices in Mexico City and Mumbai.