Dial Emergency

Dial Emergency is a short code and permits specific numbers to be dialed regardless of call barring or a logged out phone.

Manager expects that the configuration of each system should contain at least one short code that is set to use the Dial Emergency feature. If no such short code is present in the configuration then Manager will display an error warning. The importance of the Dial Emergency feature is that it overrides all external call barring that may have been applied to the user whose dialing has been matched to the short code. You must still ensure that no other short code or extension match occurs that would prevent the dialing of an emergency number being matched to the short code.

The short code (or codes) can be added as a system short code or as an ARS record short code. If the Dial Emergency short code is added at the solution level, that short code is automatically replicated into the configuration of all servers in the network and must be suitable for dialing by users on all systems. Separate Dial Emergency short codes can be added to the configuration of an individual system. Those short codes will only be useable by users currently hosted on the system including users who have hot-desked onto an extension supported by the system.

Determining the Caller’s Location

It is the installers responsibility to ensure that a Dial Emergency short code or codes are useable by all users. It is also their responsibility to ensure that either:

the trunks via which the resulting call may be routed are matched to the physical location to which emergency service will be despatched

or

the outgoing calling line ID number sent with the call matches the physical location from which the user is dialing.

Hot-Desking Users

In addition to the location requirements above, you must also remember that for users who hot desk, from the networks perspective the user’s location is that of the system hosting the extension onto which the user is currently hot desked. If that is an IP extension then that location is not necessarily the same as the physical location of the server.

Emergency call setup

Routing of emergency calls is based on a call resolving to a Dial Emergency short code. Based on the location value for the extension making the call, routing is performed as configured in the Emergency ARS. Emergency calls have maximum priority and are not delayed in any way.

Configuring emergency call routing

Create a Dial Emergency system short code. See Dial Emergency.

Note that the Line Group ID value in the Dial Emergency short code is the fallback route. If the system cannot find a location or an Emergency ARS, it will try to use the Line Group ID to route the call.

  1. Create an ARS containing a Dial short code or a Dial Emergency short code. See ARS.

  2. Create a Location and set the Emergency ARS to the ARS created in step 2. See Location.

  3. Open the Extn tab for an extension that will use the location defined in step 3 and set the Location value to the location defined in step 3. Note that once you define a location, you must set a system Location value on the System | System page.

For non-IP based extensions, the system location value is used as the default. For IP based extensions,  the location value is set to Automatic. An attempt is made to match the extension’s IP address to the subnet configured in the location. If the match is cannot be made, the location value defaults to the system location value.

From the extension used in step 3, dial the Dial Emergency short code. IP Office checks the location value and determines the emergency ARS set for the location. Once the emergency ARS is found, IP Office will try to match the Telephone Number in the Dial Emergency short code to a short code in the ARS and use it to make the emergency call.


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