3.9.5 Advanced Settings
User can setup the ICMP echo, Send Anonymous CID, Management from WAN in this page. If you enable the
"Send Anonymous CID", it will hide the phone number from the send side; the receiver will not show the phone
number at the LED pad of phone. The Polarity Reversal can support the billing system, if user wants to cooperate
with the billing system. When you finished the setting, please click the Submit button. If there is nothing need to
change, please click the Save Change Item in the left side, then click the Save button. The change you made will
save into the system and the system will reboot automatically.
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