Advanced
IP phone make calls based on SIP accounts, IP phone can support 4 independent SIP account, and
each account can be configured to different SIP server.
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 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
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.
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