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lMl66-083
line class of service programming arranges a line port
for external paging interface.
operations can be performed. Station class of service
programming allows certain buttons to be
programmed as dynamic line buttons
FEATURE INHIBIT
END-TO-END
SIGNALLING
ON INTERCOM
After an intercom call has been established, the system
can continue to send dialing signals (DTMF tones)
through the intercom path. This feature can be
performed from every station in the system, and is
s
used by peripherals such as voice mail equipment.
A large array of individual features can be disabled
system-wide to provide a basic telephone system. A
basic telephone system is useful for installation
environments where a large proportion of the stations
are accessible to unauthorized users thus subject to
tampering or for environments where station users
must be limited as to the variety of features allowed to
them. Features are disabled by system class of
service. Once disabled, they can enabled by turning
on all features at once using the system default
programming.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 call completion (bank by
phone, etc.). This conventional, off-hook dialing
feature can be performed from every station in the
system.
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, audible and visual
signalling will occur and the exclusive hold condition
will revert to a normal line hold condition.
EXCLUSIVE HOLD SYSTEM-WIDE
ENABLE/DISABLE
This feature allow systems that do not require
exclusive hold capability to have it turned off
system-wide through programming. System class of
service programming is used to enable or disable
exclusive hold.
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 the system.
DTMF tones can be dialed through the
line port to provide zone selection if provided by the
external paging amplifier. The dedicated paging port
does not support any “talk-back’ capability even if such
a feature is provided by the external equipment. The
FLEXIBLE RINGING ASSIGNMENTS
Ringing assignments are programmable on a per
station/per line basis. Pinging can be controlled for
every line that has an appearance at each station.
Delayed ringing is assigned to certain lines at each
station through station class of service programming.
Refer to the paragraph titled: Delayed Ringing.
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
allcall.
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 a user to determine that certain lines are
ringing, such as in a night transfer (of ringing) mode,
and go to the nearest telephone and answer the call.
The most common use for this arrangement is as a
night bell eliminating the need for external equipment
as required with the common ringer and auxiliary
ringer interface. The speaker cannot be used for voice
response as the path is one-way only. Use system
class of service programming to assign ringing and
paging to a PA port.
FLEXIBLE STATION AND LINE
CLASS OF SERVICE CONTROL
The extension number of a station and all other
programmable attributes that are initially assigned to a
particular station port and the line, along with all
programmable line attributes that are initially
connected to a particular line port can be re-assigned
to a different port through programming action. This
feature allows adds, moves, and changes without
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