| 摘要 |
A method and apparatus for automatically adjusting the transmit power level of a data communication equipment (DCE) device being used in an environment in which one or more telephones and one or more DCEs may be connected to the same twisted wire pair. When a telephone goes off-hook, the receiver of the DCE notifies the processor of the DCE that the telephone has gone off-hook. The receiver comprises an equalizer which generates a tap signature based on the off-hook condition of the telephone and deliver the tap signature to the processor. The processor compares the tap signature with tap signatures stored in a memory device until a match has occurred. The processor then reads the transmit power level associated with the matching tap signature out of the memory device and sets the transmit power level of the transmitter of the DCE to the transmit power level read out of the memory device.
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