User guide

Page 167
Ten Emergency Numbers
System Features
Inter-Tel
®
Axxess
®
Administrator Guide — Issue 11.0, May 2008
Ten Emergency Numbers
The system can store up to ten emergency numbers that are dialed when the Emergency Call
feature is used.
When the Emergency Call feature code (defaults to 911/999) is dialed at intercom dial tone, the
Emergency Call feature will select a trunk (defaults to Trunk Group 1) and then automatically
dial Emergency Number 1. If a station user accesses a trunk or ARS and dials Emergency
Numbers 1-10, the dialed number will automatically override all toll restrictions and trunk
access programming.
If the system is installed in an area where 911/999 service is not available, it is suggested that
the number for the local police or fire department or the telephone company operator be substi-
tuted.
If the database programmer renders this feature inoperative by removing all trunk access and/
or by removing the dialed digit string, the database program will present a warning message
indicating that the feature has been disabled and requiring the programmer to acknowledge or
change this condition before being allowed to continue.
Like all other feature codes, the 911/999 feature code can be changed to another 1- to 5-digit
code, if necessary, but it is not recommended.
An emergency number is blocked if there are no trunks or emergency numbers programmed in
the database, or all trunks in a trunk group are busy.
If the Emergency Call feature is programmed to use ARS, route group 1 (local calls) will be
used even if its dial patterns are reprogrammed.
Emergency calls, by default, use the first local trunk group and will not be sent using node
trunk groups on other nodes. However, when ARS is used to place an emergency call, Route
Group 1 is used even if it contains nodes. This means that the network can access a trunk on a
node other than the user’s node if the user accesses ARS and dials the emergency number.
Local trunks must be installed and used for emergency number trunk access and nodes should
not be used in Route Group 1. When a user places an emergency call, every administrator in
the network receives an emergency alarm.
Emergency/911
Inter-Tel recommends that the system be provisioned to have an appropriate number of Emer-
gency/911 IP resources reserved for both IP endpoints and IP trunks. For instance, if an IP end-
point makes an Emergency/911 call that must go out an IP trunk, sufficient IP resources for the
both the IP endpoint and IP trunk need to be reserved to ensure the call goes through. If an
Emergency/911 call uses ARS to route the call through another node, then the required IP net-
working IP resources also need to be sufficiently reserved on each node the call passes through
to ensure non-blocking. This provisioning includes IP resources for IP trunks if that is the des-
tination.
NOTE: The system is designed so that an Emergency/911 call has priority over all other IP
resource reservations. As long as an IP resource is idle, it will be seized even though not
reserved for Emergency/911.