Patent ID: 9553792
Date: 2017-01-24
CPC Classifications: H04L,H04W

Claim:
1. A method of operating a media device, comprising: transmitting an UPDATE request or a reINVITE request corresponding to a user session having a first endpoint that uses a first IP address and port combination of the media device as part of said user session; negotiating, during the user session, a second IP address and port combination for the media device to receive future media packets from the first endpoint during said user session; receiving on the second IP address and port combination of the media device, during the user session, a second media packet from a second endpoint, the second media packet including a second source IP address and port combination identifying the second endpoint; comparing a first IP address of a first source IP address and port combination to a second IP address of the second source IP address and port combination for the second media packet received on the second IP address and port combination; and taking an action based on the result of said comparing.