IntroductionYou can connect one analogue line (FXO) and four analogue phones (FXS) to the Hybird 120. Changing the FXO gainIf needed you can change the incoming and outgoing Gain, for this you first need to switch the web-interface to SNMP Browser. See the picture below, Headline - View. - Go to: interfaces - potsIfTable
- Click on the edit icon

Here you can change the potsifTxGain (outgoing) and the potsifRxGain (Incoming) 
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