SWG-2016/32 User Manual
49
OpenVox Communication Co. ,LTD.
Website: www.openvox.cn
registrations on a network change, use the option below
to disable this feature.
Match External Address
Locally
Only substitute the externaddr or externhost setting if it
matches.
Dynamic Exclude Static
Disallow all dynamic hosts from registering as any IP
address used for statically defined hosts. This helps avoid
the configuration error of allowing your users to register
at the same address as a SIP provider.
Externally Mapped TCP Port
The externally mapped TCP port, when the gateway is
behind a static NAT or PAT.
External Hostname
The external hostname (and optional TCP port) of the
NAT.
Hostname Refresh Interval
How often to perform a hostname lookup. This can be
useful when your NAT device lets you choose the port
mapping, but the IP address is dynamic. Beware, you
might suffer from service disruption when the name
server resolution fails.
RTP Settings
Figure 4-18 RTP Settings