Flying Voice Technology IP542N - Line 2;3;4; Network; Internet Port (WAN); PC Port (LAN)

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Carry Port
Information
If or not carry Port information in the SIP URI.
Signal Port
The local port of SIP protocol, default is 5060
DTMF Type
Choose the DTMF type from IN_band, RFC2833 and
SIP INFO.
RFC2833 Payload
(>=96)
User can use the default setting
Register Refresh
Interval
The interval between two normal Register messages.
You can use the default setting.
RTP Port
Set the port to send RTP.
IP Phone will select one idle port for RTP if you set
“0”, otherwise use the value user set.
Cancel Message
Enable
When you set enable, an unregistered message will be
sent before registration, while you set disable,
unregistered message will not be sent before
registration. You should set the option for different
Proxy.
Prack Enable
If or not enable prack.
SIP Ping Enable
If this option enable, IP Phone will send SIP-PING to
Server periodically instead of sending hello packet.
The send interval is Keep-alive interval.
Keep-alive
interval (10-60s)
The interval that IP Phone will send an empty packet
to Proxy.
7.4.3 Line 2/3/4
The parameters of Line 2/3/4 are same as Line 1 except the value of Account Enable parameter.
7.5 Network
This including: basic, wireless, MAC Address Clone, VPN, DMZ and QoS, the picture like below: