Options
Definition
Local Network
Format:192.168.0.0/255.255.0.0 or 172.16.0.0./12. A list of IP address or IP ranges which are located inside a NATed
network. This gateway will replace the internal IP address in SIP and SDP messages with the external IP address when a
NAT exists between the gateway and other endpoints.
Local Network
List
Local IP address list that you added.
Subscribe
Network Change
Event
Through the use of the test_stun_monitor module, the gateway has the ability to detect when the perceived external network
address has changed. When the stun_ monitor is installed and configured, chan_sip will renew all outbound registrations
when the monitor detects any sort of network change has occurred. By default this option is enabled, but only takes effect
once res_stun_monitor is configured. If res_stun_monitor is enabled and you wish to not generate all outbound registrations
on a network change, use the option below to disable this feature.
Match External
Address Locally
Only substitute the exeternaddr or externhost setting if it matches
Dynamic
Exclude Static
Disallow all dynamic hosts from registering as any IP address used for staticly defined hosts .This helps avoid the
configuration error of allowing your users to register at the same address as a SIP provide.
Externally
Mapped TCP
Port
The externally mapped TCP port, when the gateway is behind a static NAT or PAI
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
External
Hostname
The external hostname (and optional TCP port) of the NAT.
External Hostname=hostname[:port] is similar to
“External address”. Examples:
External Hostname=
foo.dyndns.net
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.
Advanced: RTP Settings
Table 4-2-3 Definition of RTP Settings Options
Options
Definition
Start of RTP Port Range
Start of range of port numbers to be used for RTP.
End of RTP port Range
End of range of port numbers to be used for RTP.
Parsing and Compatibility
Table 4-2-4 Instruction of Parsing and Compatibility