Forwarding plane functions run in the forwarding element. The network layer is responsible for packet forwarding including routing through intermediate routers. A package forwarding service is different from mail forwarding. The routing information is often processed in conjunction with the routing table (or forwarding table). This is different from the forwarding of IP packets. A number of services provide disposable address forwarding. It contracts with freight forwarding services worldwide. This allows more flexible proxying than is possible with ordinary port forwarding. Local port forwarding is the most common type of port forwarding. See below for a list of alternatives to plain message forwarding. The forwarding will be re-activated to the number registered in the network. They did not interconnect and were used for freight forwarding. This is currently implemented through voice call & SMS forwarding. Conversely, both ring ports of all MRCs are forwarding. FIATA offers a Diploma in Freight Forwarding.