AudioCodes Mediant 600 User Manual page 738

Parameter
Web/EMS: Emergency
Numbers
[EmergencyNumbers]
Web: Emergency Calls
Regret Timeout
EMS: Emergency Regret
Timeout
[EmergencyRegretTime
out]
Multilevel Precedence and Preemption (MLPP) Parameters
Web: MLPP Default
Namespace
EMS: Default Name
Space
[MLPPDefaultNamespac
e]
[ResourcePriorityNetwo
rkDomains]
User's Manual
Notes:

This parameter is applicable only to FXO interfaces.

This parameter can also be configured in a Tel Profile.
Defines a list of "emergency" numbers.
For FXS: 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.
For FXO, CAS, and ISDN: 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' on page 369.
The list can include up to four different numbers, where each number
can be up to four digits long.
Example: EmergencyNumbers = '100','911','112'
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: This parameter is applicable only to FXS interfaces.
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 on page 381.
Defines up to 32 user-defined MLPP network domain names
(namespaces). This value is used in the AS-SIP Resource-Priority
header of the outgoing SIP INVITE request. This parameter is used in
combination with the MLPPDefaultNamespace parameter, where you
need to enter the table row index as its value.
This parameter is also used for mapping the Resource-Priority field
value of the SIP Resource-Priority header to the ISDN PRI Precedence
Level IE. The mapping is configured by the field,
EnableIp2TelInterworking:

Disabled: The network-domain field in the Resource-Priority header
738
Mediant 600 & Mediant 1000
Description
Document #: LTRT-83313