The Total Access 600R is a cost-effective T1/FT1 access router designed for small and medium businesses, branch offices and campuses. The Total Access 600R provides 1.54 Mbps for "always-on" Internet access or remote office connectivity. With its integrated CSU/DSU, the Total Access 600R provides wide area network access over a standard T1 or fractional T1 circuit. With the Total Access 600R, carriers and enterprises can give multiple users network access over a single T1 connection. For simultaneous access to both a corporate network and the public Internet, the Total Access 600R offers the ability to configure multiple frame relay PVCs. In addition, the Total Access 600R includes NAT/NAPT and IP filtering which provides security from unauthorized access to the user's network. The Total Access 600R also provides a cost-effective campus connectivity solution. When used with private dry copper, the Total Access 600R delivers up to 1.54 Mbps to cross-campus network elements. This solution is ideal for extending LAN segments to other buildings.