User Guide

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Provisional Response ACK: 100% reliability for all provisional
message which means it will send ACK every time the IP phone receive
a provisional SIP message from SIP server.
User=phone: If enabled, IP phone will send user=phone within SIP
message.
Anonymous Call: If enabled, all outgoing call for the designated
account will be anonymous number.
Anonymous Call Rejection: If enabled, all incoming anonymous-out
call for the designated account will be rejected.
Is escape non Ascii character: To transfer the symbol to Ascii
character.
Missed Call Log: To display the miss call log.
Prevent SIP Hacking: Enable to prevent SIP from hacking.