Patent ID: 7890657

Claim:
A system for supporting the transmission of multimedia communications, comprising: a session initiation protocol (SIP) proxy for interfacing with a user equipment device, said SIP proxy including a network address translation device for translating an actual address of the user equipment device in an information packet into a translated address which is used to support media communications for transmission to the user equipment device; a media proxy that receives media communications addressed to the translated address for the user equipment device, said media communications being provided to a policy control and charging enforcement function (PCEF) device for forwarding and policy enforcement of the media communication; a proxy rules and charging function (PCRF) proxy for communicating a correlation between the user equipment device's actual address and the user equipment device's translated address to the PCEF device wherein, the PCEF device uses the translated address for proper forwarding and policy enforcement of media communications to be transmitted to the user equipment device.