METHOD AND APPARATUS FOR PROVIDING COMMUNICATIONS SECURITY USING A REMOTE SERVER

摘要

A communications system featuring a remote security server (120) is provided. The system allows the validation of requests for access to a communications network (112) to be performed implemented, without the need to distribute a security algorithm to individual client devices. In addition, changes to the security algorithm can easily be made, because such changes need only be made in the security server itself, and in the communications server (116) to which access is desired. The present invention is particularly useful in connection with communication services provided as part of a private branch exchange.