Patent ID: 9001699
Filing Date: 2015-04-07
Classification: H04L,H04M

Abstract:
1. A method of maintaining a blacklist of unacceptable originating IP addresses at a media relay, comprising: receiving a data packet at an idle port of a media relay; adding the originating IP address of the received data packet to the blacklist; receiving call setup signaling at the media relay after the data packet has been received and after the originating IP address of the data packet has been added to the blacklist, wherein the call setup signaling indicates that the media relay should expect to receive data packets bearing the media of an IP communication from the originating IP address of the received data packet; and removing the originating IP address of the received data packet from the blacklist in response to receipt of the call setup signaling when the call setup signaling is received immediately after the originating IP address of the received data packet was added to the blacklist.