Version 6.6 211 Mediant 2000
User's Manual 16. Control Network
Parameter Description
page (see Configuring Trunk Group Settings on page 281) you can
configure a Serving IP Group to where you want to route specific Trunk
Group channels, and all other device channels then use the default Proxy
Set. You can also use IP Groups in the Outbound IP Routing Table (see
Configuring the Outbound IP Routing Table on page
309) to configure the
default Proxy Set if the parameter PreferRouteTable is set to 1.
To summarize, if the default Proxy Set is used, the INVITE message is
sent according to the following preferences:
 To the Trunk Group's Serving IP Group ID, as defined in the Trunk
Group Settings table.
 According to the Outbound IP Routing Table if the parameter
PreferRouteTable is set to 1.
 To the default Proxy.
Typically, when IP Groups are used, there is no need to use the default
Proxy and all routing and registration rules can be configured using IP
Groups and the Account tables (see 'Configuring Account Table' on page
215).
Proxy Address
[ProxyIp_IpAddress]
Defines the address (and optionally, port number) of the Proxy server. Up
to five addresses can be configured per Proxy Set.
The address can be defined as an IP address in dotted-decimal notation
(e.g., 201.10.8.1) or as an FQDN. You can also specify the selected port in
the format, <IP
address>:<port>.
If you enable Proxy Redundancy (by setting the parameter
EnableProxyKeepAlive to 1 or 2), the device can operate with multiple
Proxy servers. If there is no response from the first (primary) Proxy defined
in the list, the device attempts to communicate with the other (redundant)
Proxies in the list. When a redundant Proxy is located, the device either
continues operating with it until the next failure occurs or reverts to the
primary Proxy (refer to the parameter ProxyRedundancyMode). If none of
the Proxy servers respond, the device goes over the list again.
The device also provides real-time switching (Hot-Swap mode) between
the primary and redundant proxies (refer to the parameter
IsProxyHotSwap). If the first Proxy doesn't respond to the INVITE
message, the same INVITE message is immediately sent to the next Proxy
in the list. The same logic applies to REGISTER messages (if RegistrarIP
is not defined).
Notes:
 If EnableProxyKeepAlive is set to 1 or 2, the device monitors the
connection with the Proxies by using keep-alive messages (OPTIONS
or REGISTER).
 To use Proxy Redundancy, you must specify one or more redundant
Proxies.
 When a port number is specified (e.g., domain.com:5080), DNS
NAPTR/SRV queries aren't performed, even if ProxyDNSQueryType is
set to 1 or 2.
Transport Type
[ProxyIp_TransportT
ype]
Defines the transport type of the proxy server.
 [0] UDP
 [1] TCP
 [2] TLS
 [-1] = Undefined
Note: If no transport type is selected, the value of the global parameter
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