Touchtone Technologies, Inc. (TTI) TTI has been providing carrier services, technology design, alternate billing and domestic and international traffic aggregation in North America since 1998. TTI is the only provider in the industry with tier one agreements for reverse charge and operator convenience calls. TTI was recognized as one of MCI’s “Top Business Partner” in 2005 and today is Verizon’s only aggregator of operator services revenues. This recognition and market positioning results from TTI’s level of expertise and commitment to connect calls when no other calling options are available. TTI’s Alternate Billing Services is used by many U.S. based Operator Services Providers and Clec’s. This is a complete solution allowing for the maximum compensation while providing the most comprehensive service available.