In a configuration with one location, the system routes all outgoing calls to the PSTN according to the Automatic Route Selection (ARS) table for location 1. If gateways are in different locations, you must administer Location Specific Routing for each location.
If a gateway is in a separate location from the main server, you can administer the gateway in locations for Linux and Avaya DEFINITY servers. For more information, see the Avaya Aura®Communication Manager System Capacities Table.
The command for Location Specific Routing is change ars analysis locationX0, where X is the chosen location (2 to 64 or 2 to 44), and 0 is the first placeholder in the analysis table. Once the system displays the table, enter the routing information:
Chosen dialed string (for example, 911)
Minimum and maximum number of digits
Route pattern
Call type
You must also set up the required route pattern information. When you complete this administration, the system routes emergency calls from the location over a CO trunk, a CAMA trunk, or a PRI trunk to the LEC.
If a gateway is connected to the LEC over a CO trunk, the extension of the CO trunk identifies the gateway service address. The service address is the physical location that the PSAP sees. Calls from any telephone that is registered to the gateway display the CO trunk extension to the PSAP. The PSAP then sends the emergency response to the service address.
Use the CO trunk to send and receive emergency calls only. You must verify with the LEC that the extension of the CO trunk is in the PSAP database so that all emergency help is sent to the correct location.
If a gateway is connected to the LEC over a PRI trunk, the system sends an extension to the PSAP based upon how Communication Manager is administered. You must verify with the LEC that all the extensions are in the PSAP database. For more information, see Administering Avaya Aura®Communication Manager.
If you use DID numbers from the main server to administer the extensions at the gateway, the numbers that are used at the gateway must be moved to the CO where the 911 calls terminate. If the numbers are not moved, emergency help is sent to the main server location and not to the gateway location.
If the main server and the gateway are in different LEC jurisdictions:
If you use a CO trunk from the gateway to the central office, follow the procedure as previously described in Step 1. Ensure that the correct extension is in the PSAP database for the CO trunk. All calls that are made from the gateway use this extension. Also ensure that the correct street address is in the PSAP database for the CO trunk. All calls that are made from the gateway use this street address.
If you use a PRI trunk, you can purchase a block of DID extensions from the LEC for your gateway telephones. You can shorten the gateway extensions for private calls within your system. For example, you can shorten extension 765-4321 to 4321.
When the system calls the PSTN, you must use the complete extension so that the number is recognized at the PSAP. For example, the system must send extension 765-4321 to the PSAP. The PSAP does not recognize extension 4321. Some PSAPs require a 10-digit number.
These two scenarios apply to each gateway that is in a separate location. You must repeat each applicable procedure for each gateway that is connected to a server with a unique PSAP. You must also repeat this procedure for each gateway that is in its own location.
You can use the same Location Specific Routing tables and trunks for:
Gateways that are in the same location as the main system
Multiple gateways that are in the same location
Go to the Avaya Support website at http://support.avaya.com for current documentation and knowledge articles related to the Enhanced 911 feature.
