AudioCodes Mediant 4000 SBC, Руководство пользователя

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CHAPTER 16 Services
Mediant 4000 SBC | User's Manual
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 4257
2 75678 was terminated at 11:01
and E9-1-1 caller using ELIN 425727567 0 was terminated at 11:03 , then the device
selects ELIN 425727567 8 .
In this scenario, multiple E9-1-1 calls are sent with the same ELIN.
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 Groups .
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:
➢
To configure the E9-1-1 callback timeout
1. Open the Priority & Emergency page ( Setup menu > Signaling & Media tab > SIP
Definitions folder > Priority and Emergency ).
2. In the 'E911 Callback Timeout' field (E911CallbackTimeout), enter the required callback
timeout.
3. Click Apply .
Configuring SBC IP-to-IP Routing Rule for E9-1-1
To route incoming E9-1-1 calls to the emergency service provider's PSAP server, you need to
configure routing rules in the IP-to-IP Routing table for routing between the emergency callers' IP
Group and the PSAP server's IP Group. The only special configuration is to define the emergency
number (e.g., 911) in the 'Destination Username Pattern' parameter of the IP Group belonging to the
E9-1-1 callers. The following example shows IP-to-IP routing rules for E9-1-1 in a Skype for
Business environment:
This feature is applicable only to the SBC application.
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