CHAPTER68 Configuration Parameters Reference
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
configure voip > sip-
definition settings >
emerg-nbs
[EmergencyNumbers]
FXS interfaces: When one of these numbers is dialed,
the outgoing INVITE message includes the SIP
Priority and Resource-Priority headers. If the user
places the phone on-hook, the call is not disconnected.
Instead, a Hold Re-INVITE request is sent to the
remote party. Only if the remote party disconnects the
call (i.e., a BYE is received) or a timer expires (set by
the EmergencyRegretTimeout parameter) is the call
terminated.
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:
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