| 摘要 |
<p>The invention relates to a method for controlling the volume in a communication device interface unit connected to a communication device base station, where the interface unit comprises a signal path for a speaker containing unit, where the input level is adjusted by a volume control and where the output is out put level is controlled simultaneously the same volume control. The invention further relates to a communication device interface unit comprising: the interface unit comprises a first signal path for a speaker containing unit, where the interface unit comprises a volume control for manually controlling output volume, where the interface unit comprises a first control circuit for controlling the level of the input to the interface unit and a second control circuit for controlling the output from the interface unit, where the first and the second control circuits are controlled by the same volume control.</p> |
