AudioCodes Mediant 3000 User Manual

User's Manual 956 Document #: LTRT-89730
Mediant 3000
Parameter Description
call handling whereby the relative importance of various kinds of
communications is strictly defined, allowing higher precedence
communication at the expense of lower precedence communications.
Higher priority calls override less priority calls when, for example,
congestion occurs in a network.
 [2] Emergency = Preemption of IP-to-Tel E911 emergency calls. If
the device receives an E911 call and there are unavailable channels
to receive the call, the device terminates one of the channel calls and
sends the E911 call to that channel. The preemption is done only on
a channel pertaining to the same Trunk Group for which the E911 call
was initially destined and if the channel select mode (configured by
the ChannelSelectMode parameter) is set to other than By Dest
Phone Number (0). The preemption is done only if the incoming IP-to-
Tel call is identified as an emergency call. The device identifies
emergency calls by one of the following:

The destination number of the IP call matches one of the
numbers defined by the EmergencyNumbers parameter. (For
E911, you must define the parameter with the value "911".)

The incoming SIP INVITE message contains the “emergency”
value in the Priority header.
Notes:
 The parameter is applicable to CAS, and ISDN.
 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 532.
Emergency E911 Parameters
E911 Gateway
[E911Gateway]
Enables Enhanced 9-1-1(E9-1-1) support for ELIN handling in a
Microsoft Lync Server environment and routing to a PSTN-based
emergency service provider.
 [0] None = (Default) Disable
 [1] NG911 Gateway = Enables the ELIN Gateway.
 [2] Location Based Manipulations = Enables ELIN Gateway and
location-based manipulation. For more information, see Location
Based Emergency Routing on page 302.
For more information on E9-1-1 in a Lync environment, see Enhanced 9-
1-1 Support for Lync Server on page 292.
Note: The parameter is applicable only to Gateway calls.
[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.
Emergency Special
Release Cause
[EmergencySpecialReleas
eCause]
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 destinat
ion is busy or not
found) or ELIN Gateway (for example, lack of resources or an internal
error).
 [0] = Disable (default)
 [1] = Enable
Emergency Numbers Defines a list of “emergency” numbers.

AudioCodes Mediant 3000 Specifications

General

Brand	AudioCodes
Model	Mediant 3000
Category	Gateway
Language	English