| 摘要 |
A network is configured to charge fees at a first rate for transmitting data of a first type and fees at a second, less expensive, rate for transmitting data of a second type. In a first embodiment, at least a portion of the original data transmitted is converted from the first type into the second type before sending the processed data to the network. A corresponding conversion from the second type into the first type is performed at the receiver's side to obtain re-created data from the received data. In a second embodiment, the original data is processed to obtain at least a first portion of data having the first type and a second portion of data having the second type. The at least two portions are sent to the network via different channels ensuring that at least the second portion will be billed at the second, lower rate. |
