Patent ID: 8135022
Filing Date: 2012-03-13
Classification: H04L,H04M

Abstract:
1. A method for detecting and filtering a spam communication session in a packet network, comprising: receiving at a trusted anchor, over a packet network a first message originating from a first end-user terminal in a first aggregating organization to initiate a communication session with a second end-user in a second aggregating organization, said trusted anchor not being part of said first and second aggregating organizations and said trusted anchor being arranged to route packet communication sessions between said first and second aggregating organizations; in response to the first message, determining at said trusted anchor one or more characteristics of at least one of the first aggregating organization, the first end-user and the first end-user terminal based on characteristics stored in memory associated with the trusted anchor, the memory storing characteristics of end-users, end-user terminals and aggregating organizations forming part of a system for holding communication sessions over said packet network; based on the one or more characteristics, assigning at said trusted anchor respective values to one or more security attributes that are indicative of a likelihood that the communication session is a spam communication session; and transmitting from said trusted anchor over the packet network a second message directed toward the second end-user terminal, the second message containing at least one of the respective values that was assigned to at least one of the security attributes.