Porsche CDR-31 2011 Driver Manual page 45

Problem
The person you are speaking to can hear
an echo of his voice.
The handsfree unit produces a distorted
sound.
Please contact your Porsche Partner if you experience recurrent problems with your mobile telephone.
Cause
The CDR-31 volume is too high or the mi-
crophone setting for the handsfree unit is
too sensitive.
The volume for the handsfree unit is too
high.
Solution
f Decrease the volume of the CDR-31
or
f Decrease the output (microphone) level.
Please refer to Section "ADJUSTING THE MICROPHONE VOLUME"
on page 40.
f Reduce the volume set for the input (loudspeaker).
Please refer to Section "ADJUSTING THE SPEAKER VOLUME" on
page 40.
43
Troubleshooting