NEC ELECTRA ELITE IPK II, Руководство пользователя

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Document Revision 4C Electra Elite IPK II
2 - 412 E911 Compatibility

Emergency Routing
When an extension user dials 911, the system can automatically find a trunk for the call. The
system can choose a route to which the user normally does not have access. If all normal routes
are busy, the system can even disconnect an active call and place the emergency call. E911
Compatibility uses the flexibility of the Automatic Route Selection Call Route Options to route 911
emergency calls (even in systems in which ARS is not enabled).

E911 Outgoing Dialing
The E911 calls follow the trunk group route programming. You can use the flexibility of the Automatic
Route Selection Call Route Options for additional routing options.

Forced Disconnect Follows Timer to Disconnect Call
When all lines in the programmed route are busy and the system must drop a call to place a 911 call, the
system waits the time set in Program 81-01 before disconnecting the call.

Compatibility with Customer Provided E911 Equipment
The system can automatically send a 911 call to customer-provided E911 equipment (such as the
Proctor 911 ANI-LINK System II). The E911 equipment dials emergency service and provides the
caller’s extension number to the emergency personnel. When using this type of equipment, the
system must be programmed to send E911 calls to the trunk connected to the E911 box. This is
done by assigning the trunk to the E911 trunk group and using ARS to route all 911 calls to that
port. The Dial Treatment must then be set to send the extension number and 911 to that port. This
is usually accomplished using XRE in the Dial Treatment, but check the requirements of your E911
box.

Calling Party Number (CPN) Presentation from Station
With ISDN installed, the system can provide the Calling Party Number (CPN) Presentation from
Station. No additional customer-provided 911 equipment is required.
Uninstalled Trunks in Trunk Group Prevent Call from Dialing Out
By system default, all trunks in Program 14-05-01 Trunk Group are in group 1. When placing a 911 call,
the system tries to access the trunks defined in the group. If the trunks do not exist, the call does not dial
out. For E911 to function correctly, remove any uninstalled trunks from the trunk group.
If Program 21-01-12 : System Options for Outgoing Calls – Dial 911 Routing Without Trunk Access is set
to 0 (trunk access code required), when using the Dial Number Preview feature and dialing 9+911, if all
trunks are busy, the user hears a busy signal and the call does not dial out.
If option PRG 21-01-12 is set to 1 (trunk access code not required) and using Dial Number Preview, 911
is dialed, the system disconnects a trunk and dials the call.
Dial Number Preview is when a telephone number is first dialed (previewing the number in the display)
then SPEAKER or the line key is pressed to place the call.