Miami--BellSouth Corp. said Tuesday it would build a network access point in Miami in an attempt to build a faster Internet gateway between the United States and Latin America. The move is significant because, as the Web has grown as a commercial medium, little has been done to add additional spots where information can be switched between servers. In fact, the original seven exchange points created when the Internet was used as a nuclear defense system are still the major intersections for Web traffic. BellSouth's system will be the eighth, and will be designed to handle real-time video conferencing and other high-bandwidth uses. Budget for the Miami hub and marketing plans for the project were not disclosed.