Location Based Emergency Routing; Configuring Audiocodes Elin Device; Enabling The E9-1-1 Feature; Configuring The E9-1-1 Callback Timeout - AudioCodes Mediant 800 User Manual

CHAPTER 16 Services
b. 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.

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
Emergency Routing.
Location-based emergency routing is applicable only to the Gateway application.

Configuring AudioCodes ELIN Device

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

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
➢
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.
3. Click Apply.

Configuring the E9-1-1 Callback Timeout

The PSAP can use the ELIN to call back the E9-1-1 caller within a user-defined time interval (in
minutes) from when the initial call established with the PSAP has been terminated. By default, an
ELIN can be used for PSAP callback within 30 minutes after the call is terminated. You can change
this to any value between 0 and 60:
Groups.
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Mediant 800 Gateway & E-SBC | User's Manual
Configuring Location- Based