Specifications

Description Of Standard Features IMI 66-064
Comdial). The assemblies are designed to connect
directly to the un-interruptable power source (UPS) in-
terface located on the common equipment chassis.
No user intervention is required with this feature, and
no class of service programming is required.
BATTERY BACK-UP INTERFACE
Provision has been made for attaching a Comdial
provided optional battery back-up kit to give full
unintermptable system power in case of an AC power
loss. The switching and trickle charge circuitry are in
the common equipment, while batteries, chassis, and
cable are packaged as a separate option. When
plugged into an active AC power source the common
equipment will constantly charge the attached bat-
teries with a trickle current. Built-in circuitry automat-
ically switches to battery power when AC power is lost.
With batteries at full charge, a fully loaded system will
operate for a minimum of one hour without AC power.
No class of service programming is required.
CALL ANNOUNCE WITH HANDSFREE
ANSWERBACK
The internal speaker at each multiline station provides
call-announce capability over the intercom link. A
handsfree response to a call-announce call can be
made. This response is transmitted by the microphone
built into the handset. Also refer to the discussion
titled, VOICE ANNOUNCE BLOCKI’NG
CALL TRANSFER - SCREENED
Screened call transfer allows outside calls to be trans-
ferred 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 ef-
fected. 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 (TRANS-
FER/CON’FERENCE) key.
FALLING 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
softkeys indicate status of DSS telephones: dark =
idle, steady-on = in use, flash = calling, and flutter =
call back request (if feature is available).
c01vi~d~ AUDIBLE &NGER 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 exter-
nal 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.
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 SEkCTION
INTERCOM
Refer to the discussion titled, PROGRAMMABLE
DSSBLF.
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 inter-
com 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 key. 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 statio’n set in
the do-not-disturb mode hears a fast busy tone. The
feature cannot be overridden by the calling party.
END TO END SIGNALLING
ON INTERCOM
After an intercom call has been established, the sys-
tem can continue to send dialing signals (DTMF tones)
through the intercom path. This feature can be per-
formed from every station in the system, and is used
by peripherals such as an OPX accessory unit and
voice mail equipment. @12PT CTRD TTL = END TO
END SIGNALLING
ON LINES
After an outside call has been established, the system
can continue to send dialing’ signals (DTMF tones)
through the telco network and have them received at
the distant end for inward calf completion (bank by
phone, etc.). This conventional, off-hook dialing fea-
ture can be performed from every station in the sys-
tem. No class of service programming is required.
HANDSFREE ANSWER I‘NHIBIT
The MUTE key on a multiline station can be used to
block all handsfree answerback response. This arran-
2-2