AudioCodes Mediant 800 - Page 1364

CHAPTER72 Configuration Parameters Reference
Mediant 800 Gateway & E-SBC | User's Manual
Parameter Description
FXO, CAS, and ISDN interfaces: These emergency
numbers are used for the preemption of E911 IP-to-Tel
calls when there are unavailable or busy channels. In
this scenario, the device terminates one of the busy
channels and sends the emergency call to this
channel. This feature is enabled by setting the
CallPriorityMode parameter to 2 (“Emergency”). For a
description of this feature, see Pre-empting Existing
Call for E911 IP-to-Tel Call.
The list can include up to four different numbers, where
each number can be up to four digits long. For
example:
EmergencyNumbers = ‘100’,’911’,’112’
'Emergency Calls Regret Timeout'
configure voip > sip-
definition settings >
emerg-calls-regrt-t-out
[EmergencyRegretTimeout]
Defines the time (in minutes) that the device waits
before tearing-down an emergency call (defined by the
parameter EmergencyNumbers). Until this time
expires, an emergency call can only be disconnected
by the remote party, typically, by a Public Safety
Answering Point (PSAP).
The valid range is 1 to 30. The default is 10.
Note: The parameter is applicable only to FXS
interfaces.
Multilevel Precedence and Preemption (MLPP) Parameters
'MLPP Default Namespace'
mlpp-dflt-namespace
[MLPPDefaultNamespace]
Determines the namespace used for MLPP calls
received from the ISDN side without a Precedence IE
and destined for an Application server. This value is
used in the Resource-Priority header of the outgoing
SIP INVITE request.
■ [1] DSN (default)
■ [2] DOD
■ [3] DRSN
■ [5] UC
■ [7] CUC
Note:
■ If the ISDN message contains a Precedence IE,
the device automatically interworks the "network
identity" digits in the IE to the network domain
subfield in the Resource-Priority header. For more
information, see Multilevel Precedence and
Preemption.
■ The parameter is applicable only to digital
interfaces.
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