Getting Started
The DEFINITY® Remote Port Security Device (RPSD) is a single line dial-up port protection system that prevents unauthorized access to a host resource. Host resource dial-up ports, called “subscribers,” are protected by the installation of the RPSD Lock hardware unit on the analog interface channel leading to the subscriber port. Access is provided only when the calling party uses the RPSD Key, a hardware unit installed on the analog interface channel on the calling party end.
The RPSD system provides security and control for virtually any type of dial-up port on any host resource, regardless of the type of modem associated with the host’s dial-up ports. This document specifically targets AT&T Business Communications Systems customers and users of the DEFINITY Communication System, System 85, System 75 PBXs, DIMENSION® PBX, and supporting peripheral products, for which reason most references in this document are specific to Business Communications Systems. However, this should not be understood as restricting other applications of the RPSD system.
The RPSD Lock and Key system also provides the system administrator greater control over the PBX or protected host resource administration by enabling the system administrator to specify the time of day that access to a port is permitted or to block any or all access to the line by users of RPSD Keys. In addition, a system activity log provides a real-time record of access attempts and their outcomes. Session summaries track statistics on all successful and failed attempts, providing convenient MIS data resources.
Note: The Remote Port Security Device, if properly installed and managed, clearly provides a significant and substantial barrier to unauthorized access to a dial up communication port.
Note that the Remote Port Security Device cannot be assumed to be impregnable, but needs to be viewed as an important addition to the tools and measures used by system managers to prevent unauthorized access to dial up ports.