HYBREX G1 8-24, Руководство пользователя

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Appendix A- DISA Detailed Description
The following section describes the details of operation, programming and implementation of Direct
Inward System Access (DISA) on the Hybrex G1-824i. This appendix primarily concentrates on the
implementation of DISA with Voice Service Units. DISA call flow is also explained at the end of this
Appendix through the use of a flow chart.
DISA Overview
DISA and the Voice Service Unit provide an end user with the ability to have the telephone system
answer calls, play a greeting to the caller and provide some choices to the incoming caller as to how calls
should be routed. Its most common use is to provide Automated Attendant functions to reduce or
eliminate the need for a person dedicated to the task of answering telephone calls. Through the use of
DISA with the Voice Service unit, outside callers can directly dial individual stations, select one of up to
five stations from a single digit dialing menu, or route themselves to one of a number of people within a
department.
Maintenance personnel may use the DISA feature to make program changes from a remote location such
as their service center. DISA callers may be allowed access to speed dial, and dial 9 CO line groups,
individual CO lines, the system operator and they may also be allowed to invoke the monitor feature for
specific stations or either of the two door phones.
While DISA can be implemented without the use of a Voice Service Unit, most DISA setups make use of
the VSU to provide some level of Auto Attendant capabilities.
Voice Service Unit
The G1-824i can be equipped with a Voice Service Unit daughter-board (G1-VSC). This optional board
provides 60 seconds of recording time that can be dynamically divided into up to 8 different sections and
messages. The G1-VSC mounts on the motherboard of the G1-824i. It is unique in that it does not
require any system resources to operate. No station ports are used in its implementation, so there is no
impact on the configuration of a system when setting up a VSU. One Voice Service Unit can be installed
on a G1-824i.
Programming Options and Parameters
On Hybrex systems, unlike most other systems on the market, a DISA call can be treated as a normal
incoming telephone call until it is answered by the system. As such, most normal operating parameters
for CO lines also apply. They will be described in detail within this section.
05-01-04. DISA Access Delay Time:
This parameter sets the time duration that a DISA trunk will ring prior to connection to return dial tone
or VSC message. (Stations can answer during this time.)
0 = Automatic connection, no ring to the stations.
1-9 = Automatic connection after 2-254 seconds ringing as listed below.
0=0 second 1=2 seconds 2=4 seconds 3=6 seconds 4=8 seconds
5=15 seconds 6=30 seconds 7=60 seconds 8=120 seconds 9=254 seconds
This parameter is important for at least two reasons:
1. If all calls are to be answered exclusively by the Voice Service Unit, Delayed DISA Access should
be set at 0. With this setting, as soon as a call is detected, DISA will answer the call and begin
call processing.
2. If DISA is to be used as a backup method of answering calls, such as an Attendant Overflow,
Mode 05-01-04 should be set to a value that will allow adequate time for an available answering
position to answer the call. This setting will be determined by the urgency that the customer
wishes to place on incoming calls.