公开(公告)号：US11095681B2

公开(公告)日：2021-08-17

申请号：US16768092

申请日：2018-02-28

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Pawel Jurzak ,  Dominik Dziok ,  Adam Marynowski

IPC: H04M3/51 ,  H04M3/436 ,  H04W4/90 ,  H04L29/06 ,  H04W76/50

Abstract: An emergency answering center and a method of handling a distributed denial of service attack on an emergency answering center are provided. The emergency answering center receives an emergency call from a current caller. The emergency answering center determines websites visited by the current caller prior to calling the emergency answering center. If the number of calls received at the emergency answering center within a predetermined time period exceeds a predetermined threshold, the emergency answering center compares the websites visited by the current caller prior to calling the emergency answering center to a list of websites visited by other callers within the predetermined time period. If the websites visited by the current caller match at least a subset of the list of websites visited by other callers within the predetermined time period, the emergency answering center processes the emergency call in an alternate manner that is different from the regular manner of processing emergency calls.