Patent ID: 8570989

Claim:
A method, comprising: receiving, by a system comprising a processor, a voice over Internet protocol communication directed to a portable wireless device; in response to the receiving the voice over Internet protocol communication, determining, by the system, whether the portable wireless device is capable of receiving the voice over Internet protocol communication, and determining, by the system, whether an Internet protocol address has been assigned to the portable wireless device; in response to the portable wireless device being determined to be capable of receiving the voice over Internet protocol communication, and in response to the Internet protocol address being determined not to have been assigned to the portable wireless device, sending, by the system via a wireless control channel, an instruction to the portable wireless device directing the portable wireless device to send, to the system, a request for a temporary Internet protocol address; receiving, by the system, the request for the temporary Internet protocol address from the portable wireless device after the sending the instruction to the portable wireless device; and sending, by the system, an Internet protocol based data packet comprising the temporary Internet protocol address to the portable wireless device.