AudioCodes Mediant 800B MSBR User Manual page 285

User's Manual
Parameter
Web: Proxy Keep Alive Time
EMS: Keep Alive Time
CLI: voip-network proxy-set > proxy-keep-
alive-time
[ProxySet_ProxyKeepAliveTime]
Web: Keep-Alive Failure Responses
CLI: keepalive-fail-resp
[ProxySet_KeepAliveFailureResp]
Web: Proxy Load Balancing Method
EMS: Load Balancing Method
CLI: voip-network proxy-set > proxy-load-
balancing-method
[ProxySet_ProxyLoadBalancingMethod]
Version 6.8
Description
parameter. If the device receives a SIP response
code that is also configured in the 'Keep-Alive Failure
Responses' parameter (below), the device considers
the Proxy as down. You can also configure whether
to use the device's IP address or string name
("gateway name") in the OPTIONS message (see the
UseGatewayNameForOptions parameter).

[2] Using Register = Enables the Proxy Keep-Alive
mechanism using SIP REGISTER messages. The
device sends the REGISTER message every user-
defined interval, configured by the RegistrationTime
parameter (Gateway application) or
SBCProxyRegistrationTime parameter (SBC
application). Any SIP response from the Proxy -
success (200 OK) or failure (4xx response) - is
considered as if the Proxy is "alive". If the Proxy does
not respond to INVITE messages sent by the device,
the Proxy is considered as down (offline).
If you enable Proxy Keep-Alive mechanism, the device
can operate with multiple Proxy servers (addresses) for
redundancy and load balancing (configured by the
'Proxy Load Balancing Method' parameter).
Notes:

For Survivability mode for User-type IP Groups, this
parameter must be enabled (1 or 2).

If this parameter is enabled and the Proxy uses the
TCP/TLS transport type, you can enable CRLF Keep-
Alive mechanism, using the UsePingPongKeepAlive
parameter.
Defines the interval (in seconds) between Keep-Alive
messages sent by the device when the Keep-Alive
mechanism is enabled.
The valid range is 5 to 2,000,000. The default is 60.
Note: This parameter is applicable only if the 'Enable
Proxy Keep Alive' parameter is set to Using Options.
Defines SIP response codes that if any is received in
response to a keep-alive message using SIP OPTIONS,
the device considers the Proxy as down.
Up to three response codes can be configured, where
each code is separated by a comma (e.g., 407,404). By
default, no responses are defined. If no responses are
configured or responses received are not those
configured, the proxy is considered "alive".
Note: The SIP 200 response code is not supported by
this feature.
Enables the Proxy Load Balancing mechanism per
Proxy Set.

[0] Disable = Load Balancing is disabled (default)

[1] Round Robin = A list of all possible Proxy IP
addresses is compiled. This list includes all IP
addresses per Proxy Set after necessary DNS
resolutions (including NAPTR and SRV, if
285
21. Control Network
Mediant 800B MSBR