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 ā0ā,
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 OPTIONS
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.
Anonymous Call If or not enable anonymous call.
Anonymous Call
Block
If or not enable anonymous call block.
Proxy DNS Type Set the proxy DNS type.
Use OB Proxy In
Dialog
If or not enable OB Proxy in dialog.
VPN If or not enable VPN.
Dial Prefix The prefix added before the number user dials.
User Type Select the user type, options are IP and Phone.
Only Recv
Request From
Server
If or not enable only receive request from SIP server.
Request-URI
User Check
If or not enable request-uri user check.
Hold Method Select hold method, options are ReINVITE and Info.
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