AudioCodes Mediant 500L MSBR

User's Manual 300 Document #: LTRT-10466
Mediant 500L MSBR
Parameter Description
Web/EMS: Enable Proxy Keep
Alive
CLI: voip-network proxy-set >
proxy-enable-keep-alive
[ProxySet_EnableProxyKeep
Alive]
Enables the device's Proxy Keep-Alive mechanism, which checks
communication with the Proxy server.
 [0] Disable (default).
 [1] Using Options = Enables the Proxy Keep-Alive mechanism
using SIP OPTIONS messages. The device sends these
messages every user-defined interval, configured by the 'Proxy
Keep Alive Time' 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.
Web: Proxy Keep Alive Time
EMS: Keep Alive Time
CLI: voip-network proxy-set >
proxy-keep-alive-time
[ProxySet_ProxyKeepAliveTi
me]
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.
Web: Keep-Alive Failure
Responses
CLI: keepalive-fail-resp
[ProxySet_KeepAliveFailureR
esp]
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.
Web: Proxy Load Balancing
Method
EMS: Load Balancing Method
CLI: voip-network proxy-set >
proxy-load-balancing-method
[ProxySet_ProxyLoadBalanci
ngMethod]
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
configured). After this list is compiled, the Proxy Keep-Alive
mechanism (according to parameters EnableProxyKeepAlive
and ProxyKeepAliveTime) tags each entry as 'offline' or 'online'.