Specifications

Introduction
IMI 66-031
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The system attendant station (station 10) can be called whenever the 0
key is dialed on the intercom line.
The ringing pattern of an incoming call follows the ringing pattern of
fhe TELCO or PBX system.
The ringing pattern of a tone signalled
intercom call presents two tone bursts sounded every 4 seconds. A
voice signalled intercom sounds two tone bursts one time.
Any station can be set to a do-not-disturb mode with the MONITOR.
key.
While in this mode,
the station will not ring on any incoming
call nor will it accept an intercom call.
The DSS/BLF Console is an optional console device designed to be a
companion to a regular system station.
It is useful with high call
volume systems which require a dedicated call transfer location.
The
console provides 24ikey direct station selection (DSS) intercom and an
associated busy lamp field (BLF).
It also provides one-key access to
system-wide! all-call paging.
The console is designed to be connected
to any station port and serve as a companion to the station connected
to the adjacent data-line paired port.
Installation of this option to
a system does not affect any features currently available to the
companion station.
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A faceplate mounted volume control on each station can be adjusted to
set the audio level of the call announce speaker output, A bottom
mounted volume control on each station can be adjusted to set the
audio level of the tone ringer.
The system can accept DTMF tones from a station, send them through the
TELCO network,
and hav.e them received at the distant end for inward
call completion at the distant system.
This conventional, off-hook
dialing mode can be performed from every station in the system.
Pressing the HOLD key twice,
when placing a call on hold, effects an
exclusive hold. condition.
Exclusive hold links the held call to the
timed hold recall timeout feature.
Exclusive hold prohibits the held
call from being picked up at any other station during the programmed
timeout period.
After timeout,
audible and visual signalling will
occur and the exclusive hold condition will revert to a normal line
hold condition.
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