According to our records, this business is located at 508 Broadway in Highland (in Madison County), Illinois 62249, the location GPS coordinates are: 38.7392256 (latitude), -89.6848335 (longitude). D T I is categorized under Wholesale Telephone Equipment and Systems (SIC code 5065). Known organization president is Doug Macclymont. You can contact the company by phone at (618) 651-0517.