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4S Wireless Gateways User Manual
59
Dynamic
Exclude
Static
Dynamic hosts are not allowed to register with the static
host's IP address, which will avoid the same IP registration
error.
Externally
Mapped
TCP Port
The externally mapped TCP port, when the gateway is
behind a static NAT or PAT.
External Address
The external address (and optional TCP port) of the NAT.
External Address = hostname[:port].
Specifies a static address[:port] to be used in SIP and SDP
messages. Examples:
External Address = 12.34.56.78
External Address = 12.34.56.78:9900.
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.
Figure 4-3-3 RTP Settings
Table 4-3-3 Definition of RTP Settings Options
Options
Definition
Start of RTP Port Range
Start of port numbers to be used for RTP.