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・SeJng from Web Browser
Check SIP User ID for Incoming INVITE : [Yes]
*It will be blocked unauthorized access to the devices.
Preferred DTMF method： Supply Priority 1, 2 and 3 with the same informaIon as below:
Priority 1：
RFC2833
Priority 2：
In-audio
Priority 3：
SIP INFO
*Set [in-audio] as Priority 1 in case [DTMF inband] are set on Unique Management Page.
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