Comdial ExecuTech N0308 User guide

Printed in U.S.A. IMI66–064.04
7/91
XE Key System
System Manual
The information in this publication is applicable
for the following common equipment:
Model Manufacturing Code
N0308 Rev J and later
N0308-AT Rev J and later
N0616 Rev J and later
N0616-AT Rev J and later
N0820 Rev M and later
N0820-AT Rev M and later
R
ISO 9001 Certified

Comdial®strives to design the features in our communications systems to be fully
interactive with one another. However, this is not always possible, as the
combinations of accessories and features are too varied and extensive to insure total
feature compatibility.
Accordingly, some features identified in this publication will not operate if some
other feature is activated. Comdial disclaims all liability relating to feature
non-compatibility or associated in any way with problems which may be
encountered by incompatible features. Notwithstanding anything contained in this
publication to the contrary, Comdial makes no representation herein as to the
compatibility of features.
Issued: 2/12/97

Table of Contents IMI 66-064
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Table of Contents IMI 66-064
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IMI 66-064 Table of Contents

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System Description IMI 66-064
CHAPTER 1
SYSTEM DESCRIPTION
SECTION 1
INTRODUCTION
MANUAL SCOPE
This publication contains a complete description of the
ExecuTech model XE electronic key system. The
manual is divided into:
•System Description
•Feature Description
•Installation
•System Programming
•System Operation
•Maintenance
This issue of publication IMI 66-064 supersedes all
previous issues and includes information previously
discussed in the following Technical Advisory Bulletins:
TAB036A - Software Enhancements
N0308 Revision C and later
N0616 Revision C and later
N0820 Revision D and later
N1024 Revision D and later
•Automatic dialing with DSS/BLF consoles
•OHVA and DSS/BLF with DB32S-xx adjunct feature
module
•OHVA signaling enhancements
•Unscreened call transfer
•Extended DTMF tones
•Idle line preference through an OPX port
•Auto-save feature
TAB047 - Programming Clarifications
All models, all revisions
•Expanded explanation of line assignment and button
mapping
TAB048A- Software Enhancements
N0308 Revision H and later
N0616 Revision H and later
N0820 Revision K and later
N1024 Revision K and later
•System speed dial toll restriction override
•SOHVA groups
TAB059A-Software Enhancement
N0308 REV J and later Software Issue 8
N0308-AT REV J and later Software Issue 8
N0616 REV J and later Software Issue 8
N0616-AT REV J and later Software Issue 8
N0820 REV M and later Software Issue 11
N0820-AT REV M and later Software Issue 11
N1024 REV M and later Software Issue 11
N1024-AT REV M and later Software Issue 11
K0308 REV J and later Software Issue 8
K0616 REV J and later Software Issue 8
K0820 REV M and later Software Issue 11
K1024 REV M and later Software Issue 11
Product codes for software upgrade kits:
PSUXE-1 REV 8
NO308, N0308-AT, NO616, N0616-AT, K0308, K0616
PSUXE-2 REV 11
NO820, N0820-AT, N1024, N1024-AT, K0820, K1024
•Programmable Feed-Back Tone
RELATED PUBLICATIONS
Related publications, which contain additional
information applicable to this electronic key system, are
available from the manufacturer.
They are as follows:
GENERAL INFORMATION
•IMI 01-001 Compliance Requirements To FCC Rules
and Regulations Part 68 and 15
•IMI 01-005 Handling Of Electrostatically Sensitive
Components
USER INFORMATION
•GCA 70-110 Attendant Guide
•GCA 70-111 Station User Guide
INSTALLER INFORMATION
•IMI 66-065 Class Of Service Programming Chart
1-1

IMI 66-064 System Description
SECTION 2
SYSTEM SPECIFICATIONS
SPECIFICATION MODEL NUMBER
SYSTEM CAPACITY N0308 N0616 N0820 N1024
LINES: 3 6 8 10\\
STATIONS: 8 16 20 24
DSS/BLF CONSOLES: 4 8 20 24
INTERCOM PATHS: 1 3 3 2
MAXIMUM SIMULTANEOUS
INTERCOM CONVERSATIONS: 1 3 3 2
POWER REQUIREMENTS
(Fullly loaded system)
AC POWER: 117V +/- Singlephase - all models
.4A .5A .8A. .8A
25W 45W 65W 65W
40VA 60VA 80VA 80VA
DIMENSIONS (approximate)
COMMON EQUIPMENT:
WIDTH (inches): 10.4 13.1 15.6 15.6
HEIGHT (inches): 14.9 19.4 21.1 21.1
DEPTH (inches): 3.0 3.0 3.0 3.0\
WEIGHT (pounds): 9.0 13.0 16.5 17.0
STATIONS:
FOOTPRINT (inches): 6.5 x 8.5
WEIGHT (pounds): 1.9
STATION CABLE REQUIREMENTS
TYPE: Twisted, non-shielded, #24AWG
MAXIMUM LENGTH: 1,500 feet for multiline stations
SWITCHING PRINCIPLE: Solid-state, space-division analog switching with stored program
control
OPERATING ENVIRONMENT\
TEMPERATURE: 32-122 degrees F (0-50 degrees C)
HUMIDITY: 90 percent relative, non-condensing
TERMINATIONS
LINE: Standard, 6-conductor minijack (USOC RJ14C)
STATION: Standard, 50-pin female connectors for connection to external
distribution field on models N0616, N0820, and N1024.
Standard 6-conductor minijack (USOC RJ14C) for model N0308.
1-2

MUSIC INTERFACE
INPUT LEVEL: 3 Volts peak-to-peak maximum
INPUT IMPEDANCE: Approximately 500 Ohms
CONNECTOR: RCA phono jack
CENTRAL OFFICE LIMITS
LOOP LIMITS: 1,900 Ohms maximum loop
CABLE INSULATION
LEAKAGE: 15,000 Ohms minimum
INDUSTRY REGULATORY
STANDARDS FCC Certified, part 15 (Class A)
FCC Registered (fully protected)
UL listed (power supply only)
EIA RS478
Bell publication 48002 guidance
Hearing aid compatible handset
MEMORY RETENTION
AFTER POWER LOSS 30 hours minimum (typically 200 hours)
FCC REGISTRATION NUMBER CVW7WC-12829-KF-E
RINGER EQUIVALENCE NUMBER 0.4B
PRODUCT CODE Common Equipment
N0308 3-line, 8-station
N0616 6-line, 16-station
N0820 8-line, 20-station
N1024 10-line, 24-station
Telephones
6702X 2-line monitor
6706X 6-line monitor
6714X 14-line monitor with SOHVA
Optional Telephones
6614E 10x14 monitor with SOHVA (Rev D and later)
6614T 10x14 speaker with SOHVA (Rev C and later)
6620E 5x20 monitor with SOHVA (Rev D and later)
6620T 5x20 speaker with SOHVA (Rev I and later)
Consoles
EB32X 32-button console
DB32S 32-button console with call announcer speaker
LCD Conversion
PCCXE Conversion Kit
6600E LCD cpeakerphone with SOHVA (Rev B and later)
Software Upgrade Kit
PSUXE-1 N0308 and N0616
PSUXE-2 N0820 and N1204
System Description IMI 66-064
1-3

SECTION 3
GENERAL INFORMATION
CONFIGURATION
The model XE electronic key telephone system
consists of an electronic Key Service Unit (KSU), also
referred to as common equipment, dedicated
electronic key telephones, and interconnecting wiring
consisting of small, 4- or 6-conductor, twisted-pair
cable.
The station and line capacity of the various family
members are per the following chart.
MODEL CO/PBX STATION
NO. CAPACITY CAPACITY
N0308 3 8
N0616 6 16
N0820 8 20
N1024 10 24
The model XE telephone system is full featured, and
supports a specially designed group of key telephones
(model 67xxx-xx series) described below. In addition,
it also supports the following ExecuTech multiline
telephone models 6614E, 6614T, 6620E, 6620T, 6414
and 6414S. (If a model 6414S-xx is used, a moderate
volume setting may be required to avoid the possibility
of a squeal being sounded through the station speaker
during call announce and/or background music
operations.)
An optional kit supplied clock/chip socket assembly
can be added to allow the model XE system to support
the operation of a model 6600S or 6600E ExecuTech
LCD speakerphone in addition to the telephones
mentioned above. The product code for this LCD
upgrade kit is PCCXE. This kit is available through
normal distribution channels for field installation.
When this LCD upgrade kit is installed in an XE
system, the model number designation is changed
from Nxxxx to Kxxxx. The new model numbers
become as follows: K0308, K0616, K0820 and K1024.
The LCD speakerphone will provide the following
feature displays for the user’s convenience:
•Time and Date
•Call Duration Time
•Do Not Disturb
•Line Identification When Chosen Followed By The
Numbers Dialed
•Intercom Calling Party Identification
•Intercom Number Dialed
•Re-display Of Call Time Of Last Call When HOLD
Key Is Pressed
A software upgrade kit is available for field installation.
The EPROM chip supplied in this kit will revise the
operating system software of the XE system to the
latest factory issued level. The product code for the
software upgrade kits are:
PSUXE-1 for N0308 and N0616
PSUXE-2 for N0820 and N1024
These kits are available through normal distribution
channels.
COMMON EQUIPMENT DESCRIPTION
The common equipment is a fully electronic device. It
is essentially a special purpose computer system
acting as a communications controller between central
office (CO), private branch exchange (PBX), or
CENTREX supplied lines and the proprietary
telephone stations. The software architecture of the
common equipment provides complete system support
and great flexibility of operation.
The common equipment is contained in a functional,
modern-style metal housing of contemporary design in
keeping with the needs of the modern office
environment. It is engineered to be wall or rack
mounted. The outline dimensions of the common
equipment cabinet are illustrated in Figure 1-1.
STATION DESCRIPTION
The model 67xxx-xx telephone stations are electronic,
microprocessor-controlled devices. They allow not
only multiline pickup but also single button access to
features available from the serving CO, PBX, or
CENTREX switch as well as the common equipment.
The outline dimensions of the system stations are
illustrated in Figure 1-2 and the images are illustrated
in Figure 1-3.
The stations provide the following features:
•Full modular connection
•4 fixed feature buttons with indicators
•SPKR
•MUTE
•HOLD
•ITCM
•2 fixed feature buttons without indicators
•TAP
•TRANS/CONF
•Programmable buttons with and without indicators
•7-foot, 6-conductor line cord
IMI 66-064 System Description
1-4

•6 position, 4- or 6-conductor modular line jack
•K-type handset (hearing aid compatible)
•Ringer volume control (Off, Low, and High)
•Desk/wall reversibility
DSS/BLF CONSOLE DESCRIPTION
The DSS/BLF console is an optional device designed
to be a companion to a system attendant station in
high call volume situations that require a dedicated call
transfer location. The console provides a direct station
selection (DSS) intercom, and an associated busy
lamp field (BLF). It also provides one-key access to
all-call when that feature is available.
The console may also be installed at any station port
to work in conjunction with a companion station
connected to an adjacent paired port.
The model EB32X-xx, DB32-xx, DB32S-xx, DB40-xx
and DB70-xx DSS/BLF consoles are all compatible
with the XE system. The station port to which they are
connected must be programmed as a DSS/BLF
console port. The console buttons are fixed for
DSS/BLF operation beginning with station 10 and
ending with the maximum station number in the
system. Theses buttons also provide autodial locations
at a second level of storage (accessed with the HOLD
button function). Additionally, any buttons, from
beyond system station capacity through a maximum of
32, are available as autodial locations at the first level
of storage. For example, a model N1024 key system
and a EB32X-xx or DB32-xx console will fix the first 24
console buttons as DSS/BLF buttons, and provide the
remaining eight buttons as autodial buttons. Plus, it
will provide autodial locations at the second level of
storage for the first 24 buttons. A total of 32 autodial
storage locations are provided. For larger consoles,
any buttons beyond a maximum of 32 will still be
blanked. For this reason, it is recommended that the
larger consoles (DB40 and DB70) not be used unless
absolutely necessary since the XE system has a
maximum station capacity of 24 stations thus leaving
these consoles with a large quantity of blanked
buttons.
The DB32S-xx Adjunct Feature Module can be used to
provide off-hook voice announce (OHVA) to a station
already busy on a call and allow subsequent
handsfree answerback (HFAB) by that station user.
The DB32S-xx Module can also be used as a
DSS/BLF console at the same time if desired. The
station port to which the Adjunct Feature Module is
connected must be programmed for the feature that is
required. When both DSS/BLF and OHVA operation
are required, the station port to which the console is
connected must be programmed as an Off-Hook Call
Announce port. When only DSS/BLF operation is
required, program the port as a DSS/BLF Console
port.
System Description IMI 66-064
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System Description IMI 66-064
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CHAPTER 2
DESCRIPTION OF SYSTEM FEATURES
ACCESS DENIED
Access to particular lines can be denied at certain
stations in the system through system programming.
This feature is programmable on a per line/per station
basis as part of system or administration
programming.
ADD-ON CONFERENCE
(2 INTERNAL, 1 EXTERNAL PARTIES)
This system feature allows a station, while operating in
a private mode, to add another station to an outside
call.
ALL-CALL PAGING
(VIA STATION SPEAKERS)
All-call paging allows all of the stations to receive
announcements at the same time through the station
speaker. Origination of announcements must be via a
station handset. Each station can be programmed to
receive and/or to originate an all-call page. The
system default condition is that all stations have both
receive and originate capability. The arrangement of
paging as all-call is controlled by both system and
administration programming. See the discussion titled,
Zone Paging (via Station Speakers).
ALL INTERCOM LINKS
BUSY INDICATION
When all intercom paths are busy, the system causes
the intercom light at each station to be on steady.
AUTO DIAL
Each multiline station provides programmable dialing
features. Programmable buttons can be programmed
to store numbers for automatic dialing purposes. The
stored numbers can be up to fifteen digits in length
and can include line or intercom selection, numbers, #,
S, pauses, and flash signals. A pause is stored each
time the HOLD button is pressed, and a flash signal is
stored each time the TAP button is pressed. The
pause and flash intervals are programmable. Any
programmable button that does not have a line
assignment can be programmed as an auto dial.
Additionally, an auto dial number can be stored as a
secondary function at every button programmed for
direct station selection. Often used host PBX or
CENTREX feature access codes can be stored at a
programmable button location to provide one-button
access to the features. Also refer to the discussions
titled, Automatic Pause Insertion, Station Speed Dial,
and Programmable DSS/BLF.
AUTO-SAVE FEATURE
The auto-save feature can be used to save the last
manually dialed number at any unprogrammed button
or at a specific button that was previously reserved for
this purpose. The button chosen for auto-save must be
blank and not currently programmed as a DSS button,
line select button, or auto dial button. An auto-save
can be made at a button previously used as an
auto-save button; however, the previously stored
number will be over-written. As many manually dialed
numbers can be saved in this manner as there are
separate unused buttons to be used for storage. If a
dialed number is longer than 15 digits, two or more
buttons can be used to save portions of it for later
chain dialing.
AUTOMATIC ABANDONED
HOLD RELEASE
If a distant party abandons a hold condition and
disconnects, the central office (CO) will send a forward
disconnect signal to the telephone system. When the
key system detects this signal, it will drop the line from
the hold condition and return it to service. The forward
disconnect signal may be either 50 msec. or 350
msec. and the key system is programmable to match
this time interval. Both the system and the
administration programming can be used to set the
time interval between hang-up and line-drop.
AUTOMATIC HOLD TRANSFER TO INTERCOM
(ANSWER HOLD)
If the intercom line is selected while an outside line call
is active, this system feature causes the outside call to
be automatically placed on hold.
AUTOMATIC PAUSE INSERTION
When the system stores a dialed number for later
redial, it automatically stores a pause whenever the
user waits between digits. The automatic pause is
inserted in the stored number sequence at the point
where the manual pause in dialing occurred. The wait
time is programmable between 2 sec. and 750 msec.
The wait period is programmable by system or
administration programming.
AUTOMATIC PRIVACY
(PROGRAMMABLE)
A line can be made private or non-private through
class of service programming. In the private mode, a
station has exclusive use of the line during a call. No
other station can access that line unless it is included
through the use of the add-on conference feature. In
the non-private mode, all stations with that line
System Description IMI 66-064
2-1

appearance can gain access at the same time
(sometimes known as common line pickup). A line is
specified as private or non-private through system or
administration programming. Also see the discussion
titled, Add-on Conference And Privacy Release.
AUTOMATIC REDIAL (OF BUSY
NUMBER OR UNANSWERED CALL)
Automatic redial of the last dialed number can be
made available at every station through button
programming. In most cases, the station user must
program a button for use as an auto redial button;
however, some telephone models provide an A16
button as part of the A-button field and this provides
an auto redial function as a fixed feature. With this
feature, a busy number or an unanswered call can be
redialed repeatedly. Once automatic redial is
activated, the station will select the line, automatically
dial the number, and wait for a response. It will do this
once a minute for approximately 10 minutes. The user
must lift the handset to take immediate control if the
call is completed. Users of the optional speakerphone
station can take control by pressing the SPKR button
instead of lifting the handset.
AUXILIARY EQUIPMENT INTERFACE
A non-key system telephone device or data device can
be connected ahead of the common equipment on
certain line ports across the tip and ring leads. Special
terminals in the line jack are provided for this purpose.
The system can detect an off-hook condition in the
connected device, and turn on the line status light at
the key system telephone stations with access to the
line to indicate the busy condition.
AUXILIARY STATION RINGER
INTERFACE
The auxiliary station ringer interface provides
“dry-contact” relay closures whenever station 17 rings.
The contact closures track the ringing pattern of
station 17, and can be used to control an external
signalling device. When a particular station port is
programmed to function as a PA port, the auxiliary
ringer interface relay contacts automatically become
supervisory contacts. They close when the PA port is
called. In this configuration, they are used to enable
an external PA system. Also refer to the discussion
titled, Common Audible Ringer Interface.
BACKGROUND MUSIC
If an external music source is provided, background
music can be turned on and off at individual stations.
Background music automatically turns off during calls.
Also refer to the discussion titled, External Music
Source.
BASIC KEY SERVICE (1A2)
The system provides all of the basic, 1A2-type, key
service features. These features are: selective line
pickup, common line pickup, multiline pickup, and
hold.
BATTERY BACK-UP
(CHASSIS, CABLE, AND BATTERIES)
Battery back-up assemblies including chassis, cable,
and battery are offered as optional kits (available from
Comdial). The assemblies are designed to connect
directly to the un-interruptable power source (UPS)
interface 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
uninterruptable 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
batteries with a trickle current. Built-in circuitry
automatically 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 Blocking
CALL PICKUP - DIRECTED
A user at any station can dial a special prefix code,
followed by the number of a ringing station, to answer
a ringing call at that station.
CALL PICKUP - SYSTEM
A user at any station can dial a special code and
answer a ringing call at any station in the system. The
feature can be enabled or disabled by system or
administration programming.
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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.

IMI 66-064 System Description
2-4
DSS/BLF CONSOLE (OPTIONAL)
The DSS/BLF Console is designed to be a companion
to any system station. It is useful with high call
volumesystems which require a dedicated call transfer
location. The console provides a one-button direct
station selection (DSS) intercom and an associated
busy lamp field (BLF). It also provides one-button
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-paired port. System or administration
programming is used to program a station port as a
DSS/BLF port.
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 to station ports that
are programmed as OPX unit ports. This feature can
be performed from every station in the system, and is
used by peripherals such as an OPX unit and voice
mail equipment.
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 call completion (bank by
phone, etc.). This conventional, off-hook dialing
feature can be performed from every station in the
system. No class of service programming is required.
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.
System or administration programming can enable this
feature.
EXTERNAL PAGING INTERFACE
A station port or line port can be programmed to
interface with an external paging amplifier. The
paging amplifier can then be dial accessed through the
station port or directly accessed through the line port
from other stations in the system. DTMF tones can be
dialed through the interface to make a zone selection if
zone paging is provided by the external paging
amplifier. System or administration programming can
be employed to program a station port as an external
paging port. Only system class of service
programming can be used to program a line port as an
external paging port.
EXTENDED DUAL TONE MULTIPLE
FREQUENCY (DTMF) TONES
The model XE telephone system can access
answering machines, banking computers, voice mail
equipment, etc. that require DTMF tones which are
longer than the standard 80 msec. tone. A shift to a
longer tone of preprogrammed length is automatically
made 10 seconds after a line is selected or 10
seconds after the last digit is dialed. A user can shift
from one tone length to the other by pressing the
HOLD button and then reselecting the line. It is
recommended that the shortest duration possible be
chosen. DTMF generation is a system feature and if
several stations are using the extended DTMF feature
at the same time, a delay in the time between button
press and tone sound may be noticed.
FLEXIBLE LINE ASSIGNMENT
Refer to the discussion titled, Square/non-Square
System.
FLEXIBLE RINGING ASSIGNMENTS
Ringing assignments are programmable on a per
station/per line basis. Ringing can be controlled for
every line that has an appearance at each station.
Direct, or immediate, ringing can be programmed for
some assigned lines and delayed ringing programmed
for others. Direct or delayed ringing is programmed
through system or administration programming.
HANDSFREE ANSWER INHIBIT
The MUTE button on a multiline station can be used to
block all handsfree answerback response. This
arrangement will prevent a station user from
monitoring another station site using the monitoring
ability of the voice announce feature. When the
button is pressed, all handsfree answerback is
disabled thus inhibiting any off-site monitoring. The
speaker light will flash to indicate that this feature is
active. Also refer to the discussion titled, Mute.
HEADSET INTERFACE
A station port can be programmed to allow the
operation of special telephones which provide the user
with a headset option. Programming for this feature is
through either system or administration programming.
HEARING AID COMPATIBLE HANDSET
The station handset is compatible with
magnetically-coupled hearing aids.
IDLE LINE PREFERENCE
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