2008 GX470 Hands-Free Telephone Volume
I have 2008 GX470.
When I used a hands-free telephone feature, a mic level was accidentally set to low, so the other party on the phone could hardly hear me.
How can I increase the mic level of the telephone, so that the other party can hear me well?
I checked user manuals, but there is no mentioned of changing telephone’s mic volume.
Thanks.
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