An invention is disclosed that includes a Foreign Agent that supports Mobile IP and is configured to enable a node visiting the Foreign Agent to send IP packets including voice information via an IP address obtained from an H. The computing system comprises a central processing unit, a graphics processing unit, and a driver. A second header is appended to the data packet. A transportable cable pre-stressing frame is provided, having a first end and a second end with respective outrigger assemblies and at least one pre-stressed cable extending therebetween. The EPC network sends either a TAU accept message or a TAU reject message to the WTRU.