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NAT
To display NAT-related settings.
UDP Keeps Alive message:
If enabled, IP phone will send UDP
keep-alive message periodically to router to keep NAT port alive.
UDP Alive Msg Interval:
Keep alive message interval.
Rport:
Remote Port, if enabled, it will add Remote Port into outgoing SIP
message for designated account.
Conference
To select Local or network conference.
Type:
To select desired conference type
Conference URI:
If network conference is selected, a network
conference URI will be needed to be input.