Patent ID: 6650619
Filing Date: 2003-11-18
Classification: H04Q

Abstract:
In a packet switched telephony system including a signaling subsystem operable to perform a plurality of call-setup functions for each of a plurality of call requests, said call-setup functions cooperatively defining a signaling workload associated with each of said plurality of call requests, a method comprising in combination:identifying a state of congestion in said telephony system; and responsively modifying said signaling subsystem to reduce said signaling workload associated with each of at least a plurality of said call requests, wherein said telephony system includes a gateway/terminal and a signaling server, said gateway/terminal receiving call requests and responsively transmitting a number of signaling request messages to said signaling server, wherein modifying said signaling subsystem comprises switching to a mode in which said gateway/terminal does not transmit authorization messages to said signaling server.