AudioCodes Mediant 500 E-SBC, Руководство пользователя

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User's Manual 814 Document #: LTRT-10437
Mediant 500 E-SBC
Parameter Description
Emergency E911 Parameters
[E911Gateway] Enables Enhanced 9-1-1(E9-1-1) support for ELIN handling in
Microsoft Lync Server 2010 environment.

[0] = Disable (default)

[1] = Enable

[2] = Location-based manipulations
[E911CallbackTimeout] Defines the maximum interval within which the PSAP can use
the ELIN to call back the E9-1-1 caller. This interval starts from
when the initial call established with the PSAP is terminated.
The valid range is 1 to 60 (minutes). The default is 30.
Web: Emergency Special Release
Cause
CLI: emrg-spcl-rel-cse
[EmergencySpecialReleaseCause]
Enables the device to send a SIP 503 "Service Unavailable"
response if an emergency call cannot be established (i.e.,
rejected). This can occur, for example, due to the PSTN (for
example, the destination is busy or not found) or ELIN Gateway
(for example, lack of resources or an internal error).

[0] = Disable (default)

[1] = Enable
Web/EMS: Emergency Numbers
CLI: emerg-nbs
[EmergencyNumbers]
Defines a list of “emergency” numbers.
For 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
418 .
The list can include up to four different numbers, where each
number can be up to four digits long.
Example: EmergencyNumbers = ‘100’,’911’,’112’
Multilevel Precedence and Preemption (MLPP) Parameters
Web: MLPP Default Namespace
EMS: Default Name Space
CLI: 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 on page
432 .
[ResourcePriorityNetworkDomains] 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