CHAPTER72 Configuration Parameters Reference
Mediant 800 Gateway & E-SBC | User's Manual
Parameter Description
configure voip > sip-
definition proxy-and-
registration >
redundancy-mode
[ProxyRedundancyMode]
■ [0] Parking = (Default) The device continues
working with a redundant (now active) Proxy until
the next failure, after which it works with the next
redundant Proxy.
■ [1] Homing = The device always tries to work with
the primary Proxy server (i.e., switches back to the
primary Proxy whenever it's available).
Note: To use this Proxy Redundancy mechanism, you
need to enable the keep-alive with Proxy option, by
setting the parameter EnableProxyKeepAlive to 1 or 2.
'Proxy IP List Refresh Time'
configure voip > sip-
definition proxy-and-
registration > proxy-ip-
lst-rfrsh-time
[ProxyIPListRefreshTime]
Defines the periodic rate (in seconds) at which the
device performs DNS queries to resolve FQDNs (host
names) into IP addresses. For example, if a Proxy Set
is configured with an FQDN and the parameter is
configured to 60, the device queries the DNS server
every 60 seconds, which refreshes the Proxy Set’s list
of DNS-resolved IP addresses.
The valid value is 0, or 5 to 2,000,000. The default is 60.
The value 0 disables periodic DNS queries and DNS
resolution is done only once - upon device reset, device
power up, or new and modified configuration.
'Enable Fallback to Routing Table'
configure voip > sip-
definition proxy-and-
registration > fallback-
to-routing
[IsFallbackUsed]
Determines whether the device falls back to the Tel-to-
IP Routing table for call routing when Proxy servers are
unavailable.
■ [0] Disable = (Default) Fallback is not used.
■ [1] Enable = The Tel-to-IP Routing table is used
when Proxy servers are unavailable.
When the device falls back to the Tel-to-IP Routing
table, it continues scanning for a Proxy. When the
device locates an active Proxy, it switches from internal
routing back to Proxy routing.
Note: To enable the redundant Proxies mechanism, set
the parameter EnableProxyKeepAlive to 1 or 2.
'Prefer Routing Table'
configure voip > sip-
definition proxy-and-
registration > prefer-
routing-table
[PreferRouteTable]
Determines whether the device's routing table takes
precedence over a Proxy for routing calls.
■ [0] No = (Default) Only a Proxy server is used to
route calls.
■ [1] Yes = The device checks the routing rules in the
Tel-to-IP Routing table for a match with the Tel-to-IP
call. Only if a match is not found is a Proxy used.
'Always Use Proxy'
configure voip > sip-
definition proxy-and-
registration > always-
use-proxy
[AlwaysSendToProxy]
Determines whether the device sends SIP messages
and responses through a Proxy server.
■ [0] Disable = (Default) Use standard SIP routing
rules.
■ [1] Enable = All SIP messages and responses are
sent to the Proxy server.
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