User's Manual 1012 Document #: LTRT-27045
Mediant 1000B Gateway & E-SBC
Parameter Description
table). In such a scenario, all the physical trunks of the Trunk
Group are set to the Busy Out condition. Each trunk uses the
out-of-service method according to the ISDN/CAS variant.
To configure the method for taking trunks/channels out-of-
service, see the DigitalOOSBehaviorForTrunk_x parameter for
per trunk or the DigitalOOSBehavior parameter for all trunks.
Graceful Busy Out Timeout
configure voip > sip-
definition settings >
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 (i.e., Serving Trunk Group), but maintains
currently active calls for this user-defined timeout. Once this timeout
elapses and there are still active calls, the device terminates the calls
and takes the trunk out-of-service (sending the PSTN busy-out signal).
Trunks without any active calls are immediately taken out-of-service
regardless of the timeout.
The parameter is applicable to the locking of Trunk Groups feature
(see Locking and Unlocking Trunk Groups on page 734) and the Busy
Out feature (see the EnableBusyOut parameter), where
trunks/channels are taken out-of-service.
The range is 0 to 3,600. The default is 0.
Note:
The parameter is applicable only to digital interfaces.
To configure the method for taking trunks/channels out-of-service,
see the DigitalOOSBehaviorForTrunk_x parameter for per trunk or
the DigitalOOSBehavior parameter for all trunks.
Digital Out-Of-Service
Behavior
configure voip > interface
e1-t1 > dig-oos-behavior
[DigitalOOSBehaviorForTru
nk_x]
Defines the method for setting digital trunks to out-of-
parameter is defined per trunk. The parameter is applicable to the
Busy Out feature (see the EnableBusyOut parameter) and the
Lock/Unlock per Trunk Group feature performed in the Trunk Group
Settings table of the Web interface.
[-1] Not Configured = (Default) Use the settings of the
DigitalOOSBehavior parameter ("global" parameter that applies to
all trunks).
[0] Default =
ISDN: Sends ISDN Service messages to indicate out-of-ser
or in-service state for ISDN variants that support Service
messages. For ISDN variants that do not support Service
messages, the device sends an Alarm Indication Signal (AIS)
alarm.
CAS: Sends an Alarm Indication Signal (AIS) alarm.
[1] Service = (Applicable only to T1 ISDN variants that support this
method) Sends ISDN Service messages indicating out-of-
in-service state.
Graceful out-of-service disabled: The device rejects new
incoming calls and immediately takes all channels (idle and
busy) out-of-service, by sending Service messages on the B-
channels. The device disconnects busy channels before it
sends out-of-service Service messages on them.
Graceful out-of-service enabled: The device rejects new
incoming calls. If at least one busy channel exists during the
graceful period, the device immediately takes all idle channels
out-of-service and sends out-of-service Service messages to
the other B-channels as soon as they become idle. When