DS-3 (Digital Signal Level 3) equates to 28 T-1 lines or 45 Mbps. DS-3s have enough bandwidth to allow very large databases to transfer over busy wide area networks and have the capability to handle 672 simultaneous voice conversations. 

Who uses DS-3s? Companies that host high traffic web sites, support web hosting, and need high capacity bandwidth on an as-needed basis, as well as universities/colleges, government offices, and high volume call centers. A full DS3 can accommodate many simultaneous users to meet the requirements of your business.