Patent ID: 8315245
Filing Date: 2012-11-20
Classification: H04L

Abstract:
1. In a voice over IP network including a plurality of voice over IP network edge devices associated with a plurality of source destinations and target destinations, a method for controlling mass calling events, comprising: detecting, on a port of a voice over IP network edge device, a percentage increase in port utilization associated with a plurality of telephone calls; in response to the percentage increase in port utilization exceeding a first threshold, determining a number of telephone calls in the port to a common target destination over a predefined interval; in response to the number of telephone calls to the common target destination exceeding a second threshold during the predefined interval, identifying the number of telephone calls to the common target destination as a mass calling event; and controlling calls to the common target destination in response to detecting the mass calling event; wherein the controlling calls includes sending, to a voice over IP network edge device associated with the common target destination, a provisioning instruction to block at least some packets associated with the mass calling event, providing a call announcement, re-routing traffic associated with the mass calling event, and reducing a quality of service.