AudioCodes Mediant 2000 User Manual page 554

Parameter
[TrunkPSTNAlertTimeout_ID]
Web: B-Channel Negotiation
EMS: B-Channel Negotiation For
Trunk Mode
[BChannelNegotiationForTrunk_
x]
[SendISDNServiceAfterRestart]
EMS: Support Redirect InFacility
[SupportRedirectInFacility]
[CallReroutingMode]
SIP User's Manual
outgoing calls to PSTN. This timer is used between the time
that an ISDN Setup message is sent to the Tel side (IP-to-Tel
call establishment) and a Connect message is received. If
Alerting is received, the timer is restarted.
In the ini file parameter, ID depicts the trunk number, where 0 is
the first trunk.
The range is 1 to 600. The default is 180.
Determines the ISDN B-channel negotiation mode.

[-1] Not Configured = use per device configuration of the
BChannelNegotiation parameter (default).

[0] Preferred = Preferred.

[1] Exclusive = Exclusive.

[2] Any = Any.
Notes:

This parameter is applicable to ISDN protocols.

The option 'Any' is only applicable if TerminationSide is set
to 0 (i.e., User side).

The x represents the trunk number, where 0 is the first trunk.
Enables the device to send an ISDN SERVice message per
trunk upon device reset. The messsage (transmitted on the
trunk's D-channel) indicates the availability of the trunk's B-
channels (i.e., trunk in service).

[0] = Disable (default).

[0] = Enable.
Determines whether the Redirect Number is retrieved from the
Facility IE.

[0] = Not supported (default).

[1] = Supports partial retrieval of Redirect Number (number
only) from the Facility IE in ISDN Setup messages. This is
applicable to Redirect Number according to ECMA-173 Call
Diversion Supplementary Services.
Note: To enable this feature, the parameter
ISDNDuplicateQ931BuffMode must be set to 1.
Determines whether ISDN call rerouting (call forward) is
performed by the PSTN instead of by the SIP side. This call
forwarding is based on Call Deflection for Euro ISDN (ETS-300-
207-1) and QSIG (ETSI TS 102 393).

[0] Disable (default)

[1] Enable = Enables ISDN call rerouting. When the device
sends the INVITE message to the remote SIP entity and
receives a SIP 302 response with a Contact header
containing a URI host name that is the same as the device's
IP address, the device sends a Facility message with a Call
Rerouting invoke method to the ISDN and waits for the
PSTN side to disconnect the call.
Note: When this parameter is enabled, ensure that you
configure in the Inbound IP Routing Table' (PSTNPrefix ini file
parameter) a rule to route the redirected call (using the user
part from the 302 Contact header) to the same Trunk Group
from where the incoming Tel-to-IP call was received.
554
Description
Document #: LTRT-68814
Mediant 2000