AudioCodes Mediant 500L MSBR

User's Manual 868 Document #: LTRT-10466
Mediant 500L MSBR
Parameter Description
Out-of-Service (Busy Out) Parameters
Web/EMS: Enable Busy Out
CLI: busy-out
[EnableBusyOut]
Enables the Busy Out feature.
 [0] Disable (Default)
 [1] Enable
When Busy Out is enabled and certain scenarios exist, the device
does the following:
 Analog: The FXS port behaves according to the settings of the
FXSOOSBehavior parameter such as plays a reorder tone when
the phone is off-hooked, or changes the line polarity.
 Digital: All BRI trunks are automatically taken out of service by
taking down the D-Channel.
These behaviors are done upon one of the following scenarios:
 The device is physically disconnected from the network (i.e.,
Ethernet cable is disconnected).
 The Ethernet cable is connected, but the device is unable to
communicate with any host. For this scenario, the LAN Watchdog
feature must be activated (i.e., set the EnableLANWatchDog
parameter to 1).
 The device can't communicate with the proxy (according to the
Proxy Keep-Alive mechanism) and no other alternative route
exists to send the call.
 The IP Connectivity mechanism is enabled (using the
AltRoutingTel2IPEnable parameter) and there is no connectivity
to any destination IP address.
Notes:
 Analog:

The FXSOOSBehavior parameter determines the behavior of
the FXS endpoints when a Busy Out or Graceful Lock occurs.

FXO endpoints during Busy Out and Lock are inactive.

For additional optional behavior, see the LifeLineType
parameter.
 Digital:

The Busy Out behavior depends on the PSTN protocol type.

The Busy-Out condition can also be applied to a specific
Trunk Group. If there is no connectivity to the Serving IP
Group of a specific Trunk Group (defined in the Hunt Group
Settings table), all physical trunks pertaining to that Trunk
Group are set to the Busy-Out condition. Each trunk uses the
proper Out-Of-Service method according to the ISDN/CAS
variant.

For configuring the method for taking trunks/channels out-of-
service, see the DigitalOOSBehaviorForTrunk_x parameter
for per trunk or the DigitalOOSBehavior parameter for all
trunks.
Web/EMS: Graceful Busy Out
Timeout [sec]
CLI: graceful-bsy-out-t-out
[GracefulBusyOutTimeout]
Defines the timeout interval (in seconds) for Out-of-Service graceful
shutdown mode for busy trunks (per trunk) if communication fails
with a Proxy server (or Proxy Set). In such a scenario, the device
rejects new calls from the PSTN (Serving Trunk Group), but
maintains currently active calls for this user-defined timeout. Once
this timeout elapses, the device terminates currently active calls and
takes the trunk out of service (sending the PSTN busy-out signal).
Trunks on which no calls are active are immediately taken out of
service regardless of the timeout.