Location Based Emergency Routing; Configuring Audiocodes Elin Device; Enabling The E9-1-1 Feature - AudioCodes Mediant 1000 User Manual

2. If the count between ELINs is identical, the device selects the ELIN with the
greatest amount of time passed since the original E9-1-1 call using this ELIN was
terminated with the PSAP. For example, if E9-1-1 caller using ELIN 4257275678
was terminated at 11:01 and E9-1-1 caller using ELIN 4257275670 was
terminated at 11:03, then the device selects ELIN 4257275678.
In this scenario, multiple E9-1-1 calls are sent with the same ELIN.

15.7.3.5 Location Based Emergency Routing

The device supports location-based emergency routing (E-911) in Skype for Business. This
ensures that E-911 calls from remote branches are routed to emergency providers that are
relevant to the geographical area in which the remote branch callers are physically located.
To support this, the device enables routing and SIP header / number manipulation of such
emergency calls based on the geographical location of the caller. The device manipulates
the received destination number (i.e., 911) from the remote branch callers, into a
destination number of an emergency provider that is relevant to the geographical area in
which the remote branch office is located.
For an example on location-based emergency call routing, see ''Configuring Location-
Based Emergency Routing'' on page 292.
Note:
application.

15.7.4 Configuring AudioCodes ELIN Device

This section describes E9-1-1 configuration of the AudioCodes ELIN Gateway deployed in
the Skype for Business environment.

15.7.4.1 Enabling the E9-1-1 Feature

By default, the ELIN device feature for E9-1-1 emergency call handling in a Skype for
Business environment is disabled.

To enable ELIN feature for the SBC application:

For the IP Group through which you want to communicate with the public-safety
answering point (PSAP), configure the 'SBC PSAP Mode' parameter to Enable. For
more information, see Configuring IP Groups on page 333.

To enable ELIN feature for the Gateway application:
1. Open the Priority & Emergency page (Setup menu > Signaling & Media tab > SIP
Definitions folder > Priority and Emergency).
2. From the 'E911 Gateway' drop-down list (E911Gateway), select NG911 Callback
Gateway.
Figure 15-53: Enabling ELIN E9-1-1 for Skype for Business
3. Click Apply.
User's Manual
Location-based emergency routing is applicable only to the Gateway
Mediant 1000B Gateway & E-SBC
290 Document #: LTRT-27045