Comdial Impact Dsu Instructions Manual

Do Not Disturb Inhibit
The system can be programmed to inhibit any station from entering the DND mode.
System class of service programming is used to program this feature.
Do Not Disturb Override
Stations can be provided with DND override capability which will allow them to call a
station that is set in the DND mode. The Executive/Attendant Override feature must also
be active for DND override feature to function. Station class of service programming is
used to assign this feature.
Dual Intercom
This...

Dynamic Line Buttons
Through class of service programming, the programmer can arrange certain idle line
buttons to serve as dynamic line buttons. This feature allows the system to temporarily
assign a line to a station that normally does not have the line assigned to it, and have that
line appear on a dynamic line button. While the call is appearing on the dynamic line
button (LED on), any normal call handling operations can be performed. Station class of
service programming allows certain buttons to be...

Executive/Attendant Override
This feature allows the user of a station, upon encountering a busy signal at another
station, to dial a code that will override the busy signal of a call, sound a warning tone,
and allow access to the existing conversation. This feature is enabled through station
class of service programming.
External Paging Interface
A dedicated paging port or a spare line port can be interfaced with an external paging
amplifier. The paging amplifier can then be dial-accessed by stations in...

Flexible Ringing Assignments Of PA Port
The PA port can be programmed for flexible ringing assignments and zone pages. Any
desired lines can be programmed for direct ring, delay ring, or night transfer (of ringing)
at this port. Paging can be to programmed zone or to all-call. A speaker can be connected
to the PA port to sound the ringing that is generated by the system and sent to this port
and paging announcements when they are sent to the programmed zone. Using such an
arrangement, it is possible for...

Full Button Programmability Of Features
A programmer, or in many cases the users themselves, can make most system features
available at programmable buttons merely by storing the specific access codes necessary
for dialing the features. Storable features include those that can utilize lamp (on/off)
supervision (e.g., call park orbits). The system will store all feature access codes except
for those requiring Transfer/Conference button action. It will store continuous strings of
digits (including presses...

Hold
Abandoned Hold Release
If an on-hold party hangs up at the CO/PBX end of a connection, causing an interruption
in the line current, the system will drop the line from the hold condition and return it to
service. The time interval between hang-up and line-drop is programmable in line class
of service programming with choices of either 50 msec or 350 msec. This feature is
usually dependent upon special arrangements that must be made at the CO end of the
connection. The line select indicator will turn...

Exclusive Hold
Exclusive hold prohibits a held call from being retrieved by any other station. The
exclusive hold condition also links the held call to the timed hold recall timeout feature.
After timeout, the system causes audible and visual signaling to occur reverts the
exclusive hold condition to a normal line hold condition.
Exclusive Hold System-Wide Enable/Disable
This feature allows programmers to use system class of service programming to enable or
disable exclusive hold capability on a...

Idle Line Preference
When a station is programmed for idle line preference, it will automatically be connected
to the first assigned idle line. The system can be programmed on a per station basis to
enable idle line preference. When idle line preference is enabled, taking the handset
off-hook will automatically connect the station to any assigned line that is idle and has
been arranged for this feature. The line button will not have to be pressed. If this feature
is used in conjunction with prime line...

the handset is lifted) or places the outside line on hold (if digits are dialed) and causes
intercom dial tone to return to the IST.
Pressing and releasing the hookswitch is commonly known as flashing the hookswitch or
performing a FLASH. Some ISTs are equipped with a TAP button, Users can press the
TAP button to cause the same effect as performing a FLASH.
The system provides a feature that allows IST users to FLASH an outside line for some
purpose (for example, to access a host system feature). Since...

·Intercom call to station already busy on intercom rings in subdued fashion and
flashes indicator associated with other intercom button.
·With both intercom lines busy, a third intercom call results in a subdued off-hook
voice announce (if enabled) at busy station.
·Pressing a DSS button while on an active intercom call will drop the distant party
unless the automatic hold feature is enabled for the intercom line through class of
service programming.
The hold button can be used, however, to place an...