User Manual
32
SIP STUN Configuration:
STUN can support SIP terminal's penetration to NAT in the inner-net. In this way
，
as
long as there is conventional SIP proxy and a STUN server placed in the public net, it
will do; but STUN only supports three NAT modes
：
FULL CONE, restricted, port
restricted.
IF you have stun server .please input stun server address here.
The STUN server default port is 3478
The unit is minute. if you have STUN server .please input interval time for STUN`S
detection on NAT type.
Configure enable/disable SIP STUN
；
if you have stun server .please enabe the
option.
Private Server(SIP2) Configuration.
Specific configuration parameter has the same meaning with public server.
Enable PRACK : Enable / Disable SIP prack function. Default is unchecked.
Prack is same with ACK that is used for temporary response.
