AudioCodes Mediant 800 MSBG User Manual page 806

Parameter
Web: Digital Out-Of-Service
Behavior
EMS: Digital OOS Behavior For
Trunk Value
[DigitalOOSBehaviorFor
Trunk_ID]
SIP User's Manual
play an RBT. No PI is sent in the ISDN Alert message
(unless the parameter ProgressIndicator2ISDN_ID is
configured differently). In this case, the PBX/PSTN
should play an RBT tone to the originating terminal by
itself.
Note: Receipt of a 183 response results in an ISDN
Progress message (unless SIP183Behaviour is set to
1). If SIP183Behaviour is set to 1 (183 is handled the
same way as a 180 + SDP), the device sends an Alert
message with PI = 8, without playing an RBT.
[3] Play tone according to received media. The behaviour is
similar to [2]. If a SIP 180 response is received and the
voice channel is already open (due to a previous 183 early
media response or due to an SDP in the current 180
response), the device plays a local RBT if there are no prior
received RTP packets. The device stops playing the local
RBT as soon as it starts receiving RTP packets. At this
stage, if the device receives additional 18x responses, it
does not resume playing the local RBT.
Note: For ISDN trunks, this option is applicable only if
LocalISDNRBSource is set to 1.
Determines the method for setting digital trunks to Out-Of-
Service state per trunk.
[-1] Not Configured = Use the settings of the
DigitalOOSBehavior parameter for per device (default).
[0] Default = Uses default behavior for each trunk (see note
below).
[1] Service = Sends ISDN In or Out of Service (only for
ISDN protocols that support Service message).
[2] D-Channel = Takes D-Channel down or up (ISDN only).
[3] Alarm = Sends or clears PSTN AIS Alarm (ISDN and
CAS).
[4] Block = Blocks trunk (CAS only).
Notes:
This parameter is applicable only if the parameter
EnableBusyOut is set to 1.
The default behavior (value 0) is as follows:
ISDN: Use Service messages on supporting variants
and use Alarm on non-supporting variants.
CAS: Use Alarm.
When updating this parameter value at run-time, you must
stop the trunk and then restart it for the update to take
effect.
To determine the method for setting Out-Of-Service state for
all trunks (i.e., per device), use the DigitalOOSBehavior
parameter.
The ID in the ini file parameter name represents the trunk
number, where 0 is the first trunk.
806
Mediant 800 MSBG
Description
Document #: LTRT-12804