User guide

System Description IMI 66-064
2-3
CALL TRANSFER - SCREENED
Screened call transfer allows outside calls to be
transferred from one station to another, via the
intercom link, in one of two ways. If both stations have
access to the line, a common line pickup transfer can
be effected. If the other station does not have access
to the incoming line, transfer can still take place using
the system transfer feature. For a screened transfer, a
call is transferred to another station with a pre-transfer
announcement by the transferring party. Transferring
of calls is accomplished with the T/C
(TRANSFER/CONFERENCE) button.
CALL TRANSFER - UNSCREENED
An active call can be transferred to another station
without being announced. The transferred call will ring
the other station and await an answer. The call will
automatically ring back to the transferring station after
a programmable recall period. A transferred call will
only ring if the station is idle. If the other station is busy
on intercom or is already ringing with another call, the
transferred call will immediately recall the transferring
station. If the other station is idle or has background
music enabled, it will start ringing immediately. If it is in
any other state, it will not ring until it returns to an idle
state.
CALLING STATION IDENTIFICATION
If the station number of a calling station has been
programmed into the DSS/BLF of a called station, the
calling station will be identified by the flashing BLF
light at the called station. The lights adjacent to
programmable buttons indicate status of DSS
telephones: dark = idle, steady-on = in use, and
flash = calling.
CLASS OF SERVICE PROGRAMMING (EACH LINE
AND STATION)
Each line and station in the system can be
programmed with a unique class of service operating
condition. Class of service programming can be
performed using instructions provided in Chapter 4.
CLASS OF SERVICE PROGRAMMING (FROM MAIN
STATION)
Both system and administration class of service (COS)
programming is performed from station 10 after a base
level programming step is entered. System COS
programming is used by the installer to configure the
system and assign the line conditions. Administration
COS programming is used by the on-site administrator
to re-configure the system as required. Line condition
assignment is not a part of administration
programming. Refer to Chapter 4 for programming
details.
COMMON AUDIBLE RINGER INTERFACE
Connections are available at the key service unit
which provide “dry-contact” relay closures whenever
an incoming line rings. These contact closures track
the ringing pattern and can be used to control an
external signalling device. When a particular station
port is programmed to be a PA port, the common
audible ringer interface contact points automatically
become supervisory contacts which close when the
PA port is called. In this configuration, they are used
to enable an external PA system. Also, see the
discussion titled, Auxiliary Station Ringer Interface.
DEFAULT FUNCTIONAL PROGRAM
At initial power up of the system, the operating
features are set to a specific group of operating
conditions (default conditions). The default conditions
provide a complete operating system for normal use.
The system can be left as a defaulted system or
operating conditions can be reprogrammed if desired.
A system can be defaulted at any time using the
master clear procedure included with the system class
of service programming; however, this action also
clears all user stored auto dial and speed dial
numbers.
DELAYED RINGING
Refer to the paragraph titled, Flexible Ringing
Assignments.
DIAL 0 FOR SYSTEM ATTENDANT
The system attendant station (station 10) is signalled
whenever the digit 0 is dialed on the intercom line.
DIRECT STATION SELECTION
INTERCOM
Refer to the discussion titled, Programmable
DSS/BLF.
DISTINCTIVE RINGING
The ringing cadence of an incoming call is the same
as the ringing cadence of the TELCO, PBX, or
CENTREX system. The ringing cadence of an
intercom call presents two tone bursts sounded every
4 seconds.
DO NOT DISTURB
Any station can be set to a do-not-disturb mode using
the SPKR button. While in this mode, the station will
not ring on any incoming call nor will it accept an
intercom call. A party making an intercom call to a
station set in the do-not-disturb mode hears a fast
busy tone. The feature cannot be overridden by the
calling party.