Configure the ELIN Gateway Option

To enable an Emergency Location Identification Number (ELIN) gateway to support connections to an emergency service provider, you must configure the ELIN gateway option on the Oracle® Enterprise Session Border Controller (E-SBC). Oracle delivers the E-SBC pre-configured with the 911 and 112 Public Safety Answering Point (PSAP) callback numbers. You can add more PSAP numbers, as needed. You can also specify the length of time that you want the E-SBC to retain ELIN mappings.

• Determine the preferred length of time, in minutes, that you want the E-SBC to retain ELIN mappings.
• Determine whether or not you want to add more PSAP callback numbers.

The E-SBC requires ELIN configuration at the global level, rather than at the session-agent, realm-config, or sip-interface level. Select the spl-config option under system for this ELIN configuration. In the following configuration you can set the time limit for retaining ELIN mappings and you can add more PSAP callback numbers.

To configure the ELIN Gateway option:

1. Access the spl-config configuration element.

   ORACLE# configure terminal
   ORACLE(configure)# system
   ORACLE(system)# spl-config
   ORACLE(spl-config)# 

2. Type select, and press Enter.
3. Type spl-options +Elin-Gateway=<value>, and press Enter. Valid values: 30 or 60.

   ORACLE(spl-config)#spl-options +Elin-Gateway=60

4. (Optional) Type spl-options +Elin-Add-PSAP="<value>", where <value> is one or more PSAP numbers, and press Enter. For multiple numbers, place the numbers within quotes, separate the numbers with a comma, and use no spaces. A single number does not require enclosure in quotes. Examples: +Elin-Add-PSAP=999 and +Elin-Add-PSAP="999,000,114".
5. Save and activate the configuration.