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4.2.2.5 Line configure/ Line Polarity<br />
/<strong>VoIP</strong> Setup/Line Configure/ Line Polarity<br />
This page defines the Polarity on the phone port of the <strong>VoIP</strong> <strong>Gateway</strong>.<br />
If use the normal phone set to connect gateway, please select “Normal”.<br />
If use PBX or special PSTN line (support polarity invert), then please select<br />
“Invert”.<br />
Please remember to press the Modify button to take it effect. For store back to flash<br />
memory, please press Save Modification (/System Maintenance/Save<br />
Modification/).<br />
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