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•
SIP TLS Ports: If you are using SIP over TLS (Transport Layer Security - Se-
curity over TCP), you need to set this field. The default port for TLS is
•
Maximum number of SIP connections per second: This setting specifies
the number of SIP conversations the system will respond to in 1 second. This
setting is useful for deterring against SIP attacks.
•
Maximum number of SIP connections: This setting limits the total number
of SIP connections the system will support. This setting must be configured in
busy environments where resource limitation is an issue.
•
SIP IP Replacement List: This setting applies to a system that is used
in a DMZ zone with NAT (e.g., for remote phones that are connected to
a system which is not on a public IP address). In this case, when the sys-
tem builds the remote SIP packets, it will use the public IP address of the
router. The setting should include a list of local IP addresses and their re-
placements (e.g.,
0.0.0.0/0.0.0.0/75.150.87.9
address in the list, it replaces the local address with the remote address, so the
SIP messages from the system will look as if they were sent from the replaced
IP
address.
The format of the list is LocalAddress/RemoteAddress [LAdr/
RAdr]. Both the LAdr and the RAdr must be an IPv4 or IPv6 address (e.g.,
192.168.1.2/203.4.5.12
Internet
Firewall/
router
•
IP Routing List: The IP Routing List setting is used to override the operat-
ing system IP routing table and is linked to the routing table (this setting will
192.168.1.0/255.255.255.0/192.168.1.1
). DNS addresses are not resolved here.
75.150.87.9
DMZ
75.150.87.9:5060, 1000-10999
192.168.1.1
192.168.0.7
Chapter 2: System Settings
). Whenever the system finds a local
55
5061
.
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