AudioCodes Mediant 500L MSBR

User's Manual 924 Document #: LTRT-10466
Mediant 500L MSBR
Parameter Description
 The incoming SIP INVITE message contains the
“emergency” value in the Priority header.
Notes:
 This parameter is applicable to FXS/FXO, CAS, and ISDN.
 For FXO interfaces, the preemption is done only on existing
IP-to-Tel calls. In other words, if all the current FXO channels
are busy with calls that were initiated by the FXO (i.e., Tel-to-
IP calls), new incoming emergency IP-to-Tel calls are
dropped.
 MLPP and Emergency services can also be configured in a
Tel Profile.
 For more information, see ''Pre-empting Existing Call for
E911 IP-to-Tel Call'' on page 458.
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
EMS: Enable 911 PSAP
[Enable911PSAP]
Enables the support for the E911 DID protocol, according to the
Bellcore GR-350-CORE standard. This protocol defines
signaling between E911 Tandem Switches and the PSAP, using
analog loop-start lines. The FXO device can be installed instead
of an E911 switch, connected directly to PSAP DID loop-start
lines.
 [0] = Disable (default)
 [1] = Enable
Notes:
 This parameter is applicable only to FXO interfaces.
 This parameter can also be configured in a Tel Profile.
Web/EMS: Emergency Numbers
CLI: emerg-nbs
[EmergencyNumbers]
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.