The Cisco AS5300 universal access server is a versatile data communications platform that provides the functions of an access server, router, and digital modems in a single modular chassis. The access server is intended for Internet service providers (ISPs), telecommunications carriers, and other service providers that offer managed Internet connections, and also medium- to large-sized sites that provide Voice over IP, and both digital and analog access to users on an enterprise network. By terminating both analog and digital calls on the same chassis simultaneously, the access server provides you with a clear, simple, and easy migration path from today's analog dial access services to tomorrow's digital dial access services. The access server includes three slots in which you can install a combination of cards. Octal E1/PRI card with serial support contains Bantam jacks for troubleshooting purposes. In the Octal cards they are controlled through the software.