32
is DSP, another is SLIC
□
Phone Out
：
You may adjust DSP chip to control output volume, rang from -32~31dB
□
Phone In
：
You may adjust DSP chip to control input volume, range from -32~31dB
□
FXS Tx
：
YOU may adjust SLIC chip to control output volume, range from 1~ 9
□
FXS Rx
：
You may adjust SLIC chip to control the input volume, range from 1~9
5.1.3 Loop Current control
