ATLAS 800 functions as T1/T3 bandwidth manager, ISDN access switch, remote access concentrator, 3/1/0 Digital Access Cross-Connect System (DACS), and includes intelligent call routing. It features standalone, rackmount, or wallmount installations. There are two network interfaces, each independently configurable for T1, DSX-1 or PRI operation, eight expansion slots accept hot-swappable modules, 10BaseT Ethernet interface for SNMP/Telnet management. The unit has optional redundant power supply.