802.3af PoE SIP IP Phone
VIP-256PT
28
Item
Descriptions
Domain name
Mode
If or not use domain name in the SIP URI
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
ssages. You can use the
Register me
default setting.
RTP Port
Set the port to send RTP.
IP Ph
for RTP if you set “0”, otherwise use
one will select one idle port
the value user set.
Cancel Message
Enable
When you set enable, an unregistered message will be sent before
regist
not be
ration, while you set disable, unregistered message will
sent b
erent Proxy.
efore registration. You should set the option for diff
Prack Enable
Enable / Disable 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.
