Inter-Tel Microprocessor Key Installation And Maintenance Practices Manual

							INTER-TEL PRACTICES 
FEATURES 
SECTION 340-100-208 
Issue 3, April 1983 
FEATURES . 
CONTENTS PAGE 
CONTENTS 
PAGE 
1.00 
2.00 
3.00 INTRODUCTION ..................... .2-2 
INTERNAL COMMUNICATIONS. ...... .2-2 
Automatic Intercom Availability ........ .2-2 
Private Multi-Path Intercom Calls ...... .2-2 
Two-Digit Dialing or Single Key 
DSS/BLF............................2- 3 
Intercom Alert Tone. .................. .2-3 
Full-Duplex Handsfree Intercom Calls , . .2-3 
Microphone ON/OFF Indication ........ .2-3 
Private Intercom Calls ................. .2-3 
Automatic Intercom Callback .......... .2-4 
Automatic Handset/Handsfree Control .. .2-4 
Called Party Forced Release ........... .2-4 
Intercom Camp-On ................... .2-4 
Call Waiting Signal .................... .2-4 
Call Forwarding ....................... .2-4 
Consultation Hold .................... .2-5 
Intercom Transfer. .................... .2-5 
Do-Not-Disturb.. .................... ..2- 5 
EXTERNAL COMMUNICATIONS ...... -2-5 
Line Status Indicators ................. .2-5 
Outgoing Call Multi-Line Key Selection .. .2-6 
C.O. Line Queuing .................... .2-6 
Privacy on C.O. Lines ................. .2-6 
Pushbutton Dialing ................... .2-6 
Last Number Redial ................... .2-6 
Speed Dialing of Frequently Diale,d 
Numbers.. ........................ ..2- 6 
Outside Dial Tone Restore ............. .2-7 
Line Key Skipping .................... .2-7 
Automatic Handset Handsfree Control ... .2-7 
On-Hook Monitoring/Dialing .......... .2-7 
Music-On-Hold.. .................... ..2- 7 
Automatic C.O. Line Release (System 
Programmable) ..................... .2-7 
Hold Recall Time ..................... .2-7 
Operator’s Recall Time ................ .2-8 
Intercom Call Waiting Signal ........... .2-8 
Call Splitting ......................... .2-8 
Call Hold.. .......................... ..2- 8 
Conference Calls (Two Inside Parties, One 
Outside Party) ...................... .2-8 
Conference Calls (Two Outside Parties, 
One Inside Party .................... .2-9 
Distinctive Central Office Ring Indica- 
tions .............................. ..2- 9 
Night Ring Mode ...................... .2-9 4.00 
5.00 
6.00 
7.00 
8.00 MOVING CALLS AND LOCATING 
PERSONNEL.. ...................... ..2- 9 
Call Transfer ........................ 2-10 
Call Transfer to Hold ................. 2-10 
Transfer Recall Time (System 
Programmable) 
.................... 2-10 
Reverse Transfer. .................... 2-l 0 
Transfer Cancel (Call Screening) ..... 2-10 
Transfer Search, ..................... 2-10 
Zone Paging l-4 and All-Page ........ 2-10 
Message Waiting Indication. .......... 2-11 
Message Center ..................... 2-l 1 
Executive Priority Call Waiting ........ 2-l 1 
External Paging Speakers ............ 2-l 1 
Account Codes ...................... 2-11 
Multiple Speed Dialing ............... 2-l 2 
Station Transfer Security ............. 2-l 2 
DSS/BLF STATION SPECIAL FEATURES 2-12 
Key Functions of the DSS/BLF.. . . . . . . 2-12 
Visual Indications of the DSS/BLF . . . . 2-12 
Intercom Dialing with the DSS/BLF . . . 2-13 
Call Transfer with the DSS/BLF . . . . . . . 2-13 
Call Transfer to a Busy Station with the 
DSS/BLF . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13 
Reverse Transfer with the DSS/BLF . . . 2-13 
Call Screening with the DSS/BLF . . . . . 2-13 
Activating the Message Waiting Indication 
With the DSS/BLF . . . . . . . . . . . . . . . . . 2-13 
ON-SITE PROGRAMMING . . . . . . . . . . . 2-13 
Special Modes of Operation . . . . . . . . . . . 2-13 
Types of Programming Parameters.. . . 2-14 
PROGRAMMABLE STATION HARDWARE 
FEATURES .......................... 2-15 
Digit 1 Dial (Switch 1) 
................ 2-15 
Speed Transfer (Switch 2) ............ 2-15 
Off-Hook Ring (Switch 3). ............ 2-15 
Night Station (Switch 4) 
.............. 2-15 
Full-Duplex (Switch 5) 
............... 2-15 
Executive Priority Call Waiting 
(Switch 6) 
......................... 2-16 
Do-Not-Disturb (Switch 7). ........... 2-16 
DIAGNOSTICS AND ‘SYSTEM SELF- 
TESTING (OPTIONAL). .............. 2-16 
Test Program 
........................ 2-16 
Online Monitor (DNMN) .............. 2-16 
Display Program (DISP) ............... 2-16 
Enable Error Messages ............... 2-16 
REST Program 
....................... 2-16 
Page 2-l  
						

							FEATURES 
SECTION 340-100-200 
issue 3, April 1983 
CONTENTS PAGE 
9.00 SYSTEM RS-232C OUTPUTS.. . . . . . . . 2-16 
Station Message Detail Recording. . . . . 2-16 
Error Messages . . . . . . . . . . . . . . . . . . . . . . 2-16 
1.00 INTRODUCTION 
This section contains the purposes, definitions and 
operating instructions associated with all opera- 
tional features of the INTER-TEL Microprocessor 
Key (MPK) system. Where practical, general tele- 
phone terminology is used to describe the precise 
operation of the system. More condensed feature 
operating instructions can be found in the MPK User 
Guide also available from INTER-TEL under sepa- 
rate cover. 
Some features are fixed by the version number of 
the software; others are hardware switch-selectable 
or software programmable by inlstallation personnel. 
All features may be divided into the following categories: 
A. 
6. 
C. 
D. 
E. 
F. 
G. Internal Communications. These features are 
associated with station-to-station communica- 
tions within the same MPK system. Refer to 
Section 2.00. 
External Communications. These features are 
associated with calls that are connected to C.O. 
lines. Refer to Section 3.00. 
Moving Calls and Locating Personnel. These 
features are associated with transferring calls 
within the system and locs.ting personnel. Refer 
to Section 4.00. 
DSS/BLF Station Special Features. These fea- 
tures are associated with the optional Direct 
Station Selector and Busy Lamp Field (DSSBLF). 
Refer to Section 5.00. 
On-Site Programming. These features include 
the programming modes of operation and types 
of service available to the MPK system. Refer to 
Section 6.00. 
Programmable Sta,ion Hardware Features. 
These features include those programmable by 
hardware switches inside the keyset. Refer to 
Section 7.00. 
Diagnostics and System Self-Testing. These 
features include thc.t;e associated with diagnos- 
tics and testing of the MPK system. Refer to 
Section 8.00. INTER-TEL PRACTICES 
, 
,’ 
H. Systern RS-232C Outputs. These features in- 
clude those associated with the RS-232C port 
outputs. Refer to Section 9.00. 
2.00 INTERNAL COMMUNICATIONS 
This section defines the features associated with 
station-to-station communications, including: 
Automatic Intercom Availability 
Private Multi-Path intercom Calls 
Two-Digit Dialing or Single Key DSS/BLF 
Intercom Alert Tone 
Full-Duplex Handsfree intercom Calls 
Microphone ON/OFF indication 
Private Intercom Calls 
Automatic Intercom Callback 
Automatic HandseVHandsfree Control 
Called Party Forced Release 
Intercom Camp-On 
Call Waiting Signal 
Call Forwarding 
Consultation Hold 
Intercom Transfer 
Do-Not-Disturb 
2.01 Automatic intercom Availability 
Ready availability of an intercom channel provides 
for rapid and efficient access to pushbutton dialing 
and the many other possible system features. 
On the MPK system, automatic intercom availability 
means that the intercom is automatically available 
for dialing any time you 
take the handset off-hook 
and hear an intercom dial tone through the handset: 
or, press the ON/OFF key, and hear an intercom dial 
tone through the internal speaker. (Intercom dial 
tone may be differentiated from outside dial tone by 
its higher frequency.) 
Environmental acoustics, as well as proximity of the 
system, may produce less than satisfactory hands- 
free full-duplex intercom calling. 
2.02 Private Multi-Path intercom Calls 
The private multipath intercom calls feature guar- 
antees that your voice path cannot be broken into by 
any other caller. Instead, the MPK system allows the 
introduction of special tones into the voice path to 
signal that a call is camped-on or waiting on hold to 
communicate with you. 
Page 2-2  
						

							INTER-TEL PRACTICES 
The MPK system supports up to five private intercom 
calls simultaneously. After you access the intercom 
and complete dialing, the system automatically 
selects an intercom path and completes the private 
call. If there are already five calls active, any caller 
trying to place an intercom call receives a busy 
signal (short single tones) after trying to access a 
station, regardless of whether the station is active or 
inactive. Also with five intercom calls active, any 
outside call ringing into the operator cannot be 
transferred to another station since the transfer 
requires an intercom path. 
2.03 Two-Digit Dialing or Single Key DSWBLF 
Two-digit or single key dialing boosts rapid access 
to communication paths. By simply dialing a two- 
digit number (10-41) on a keyset, or by pressing a 
single key on the optional DSS/BLF, you may place 
an intercom call to any keyset station in the MPK 
system. 
2.04. Intercom Alert Tone 
An intercom alert tone provides a reliable means of 
alerting you to an incoming call. By taking advantage 
of this feature you can eliminate the possibility of 
any invasion of privacy which might occur if your 
intercom is turned on without your knowledge. 
The MPK incoming intercom alert tone is an audible 
double beep which occurs at a station receiving an 
incoming intercom call. After the incoming inter- 
com alert tone, the caller may request the desired 
party by name. 
2.05 Full-Duplex Handsfree Intercom Calls 
Full-duplex handsfree intercom calls allow the called 
party to communicate freely without the handset 
and without the need for either party to wait to talk 
until the other has stopped talking (“voice switch- 
ing”). 
To acknowledge a full-duplex intercom call hands- 
free, simply answer “Yes” in a normal voice after 
hearing the intercom alert tone and the voice an- 
nouncement of the caller. You may converse in a 
normal voice. 
If you have difficulty hearing the voice of the other 
party, adjust the voice volume control on the right 
side of the keyset. FEATURES 
SECTION 340-l 00-200 
Issue 3, April 1983 
2.06 Microphone ON/OFF indication 
A microphone ON.indication confirms the precise 
transmission of your voice over the microphone in 
the handsfree mode. It functions with the incoming 
intercom alert tone (see Section 2.04) to further 
safeguard the privacy of your conversation against 
unwanted listeners. 
The MPK microphone ON/OFF indication consists 
of a lamp underthe ON/OFF key which lights whenever 
the amplification level of the handset microphone is 
elevated to operate in the handsfree mode. This 
occurs when receiving an intercom call on any 
keyset, unless station option 4 (ring intercom first 
- see Section 340-100-400) is programmed. It will 
also occur when placing an intercom or outside call 
from a station set that has switch 5 closed (full- 
duplex speakerphone) inside the keyset. When 
switch 5 is closed, pressing the ON/OFF key is the 
same as lifting the handset and all station communi- 
cation may be conducted handsfree. To terminate 
calls in this mode, press the ON/OFF key a second 
time. This will act the same as hanging up the 
receiver. 
NOTE: On stations which have been adapted for 
full-duplex speakerphone operation (DIP 
switch 5 closed), an external speaker must 
be connected to eliminate feedback. 
2.07 Private Intercom Calls 
The private intercom calls feature ensures that the 
receiving party answers your call manually, and that 
there is no voice announcement; 
To place a private intercom call, simply press the 
pound (#) key after dialing the extension number 
and waiting for adouble beep. This causes the called 
party’s phone to ring with short continuous double 
beeps, a signal that the caller wishes to speak 
privately. To answer, the called party must lift the 
handset or press the ON/OFF key. (Note: if the 
called party elects to press the ON/OFF key, privacy 
is, of course, eliminated on the receiving end.) 
You may also receive privately all intercom calls 
arriving at your station by programming station 
option 4 (ring intercom first) into your keyset. In this 
case, you must always answer by lifting the handset 
or pressing the ON/OFF key, regardless of whether 
the calling party desires a private call. See Section 
340-l 00-400. 
Page 2-3  
						

							FEATURES 
SECTION 340-100-200 
Issue 3, April 1983 
2.08 Automatic intercom Callback 
intercom call queuing assures you of access to a 
busy station as soon as that station becomes avail- 
able. This feature differs from intercom camp-on 
(see Section 2.11) in that waiting off-hook is not 
necessary. 
After reaching a busy party and hearing a busy 
signal, you may queue onto that extension by 
pressing the pound (#) key, listening for intercom 
dial tone and hanging up. You will then receive 
continuous short double beeps from the station 
when the called party becomes available. Pick up the 
handset and you will be automatically connected. If 
the callback is not answered within 15 seconds, the 
callback is canceled. 
The maximum number of callbacks allowed is five 
per system (intercom or C.O. line) and one per 
station. 
NOTE: If executive priority call waiting (switch 6) is 
enabled, callbacks wil/ !?of be allowed from 
that station. 
2.09 Automatic Handset/Han&free Control 
Automatic handset/handsfree control maximizes 
system versatility during an incoming intercom call 
by allowing you to switch easily! between handset 
and handsfree operation. 
To switch from handset to handsfree control during 
an outgoing intercom call, press the ON/OFF key 
and hang up. To switch from handsfree to handset 
control, simply lift the handset. This can only be 
done on stations that have been adapted for full- 
duplex speakerphone operation (DIP switch 5 
closed). 
NOTE: On stations which have been adapted for 
full-duplex speakerphone operation, (DIP 
switch 5 closed), an external speaker must 
be connecfed to eliminate feed back. 
To switch between handset and handsfree control 
during an incoming intercom call, simply hang up or 
pick up the handset. The ON/OFF key will light to 
advise you when you are in the handsfree mode. 
2.10 Called Party Forced Release 
Called party forced release helps you to switch 
quickly from an intercom call received by your 
station to a C.O. line. INTER-TEL PRACTICES 
After a handsfree conversahon, release the called -*:, 
party by pressing any u-nused line key. .,,’ 
2.11 Intercom Camp-On 
When calling an intercom party that is busy, you may 
use the camp-on feature to ensure that you com- 
municate with the party as soon as the station 
becomes free. 
To camp on, simply wait until the busy signal (short 
single beeps) ceases after calling the busy extension. 
You will receive music-on-hold (if system is 
equipped for MOH) until the called party answers. 
NOTE: A continuous busy signal indicates that a 
previous camp-on is in effect. 
2.12 Call Waiting Signal 
The call waiting signal ensures that important at- 
tempts to communicate with you will not go un- 
noticed. 
The MPK call waiting signal is a fast-flashing 
HOLD/FWD key and one double tone heard through I 
the handset or speaker. This indicates that there is 
another call “camped-on” or waiting to be answered. 
Note that the calling party will not hear or see any 
signals except music-on-hold. 
Station DIP switch 3 must be enabled to hear the call 
waiting signal on the handset. 
2.13 Call Forwarding 
The call forwarding feature frees you from forced 
attendance at a particular station by allowing you to 
forward all your calls to another keyset. 
To forward all your calls, simply go off-hook, press 
the HOLD/FWD key, dial the extension number 
where you wish to receive the calls, and hang up. 
The HOLD/FWD key will flash at a medium rate 
(once per set, 60 IPM), indicating that all calls have 
been forwarded to another station. 
Only the station receiving the forwarded calls can 
reach the station which initiated thecall forwarding. 
To release a phone from the call forward mode, go 
off-hook, press the HOLDIFWD key and hang up. ’ 
The HOLD/FWD lamp will go out; queues and ring- 
in lines will not forward; and a call on hold will not 
forward on recall. 
Page 2-4  
						

							INTER-TEL PRACTICES 
2.14 Consultation Hold 
Consultation hold grants ready access to all the 
consultation resources available to your system 
during an intercom call, without need to disconnect 
and redial. 
To place an intercom call on hold in order to 
“consult” with another station, press the HOLD/FWD 
key and then dial (within 4 seconds) the desired 
intercom number, or (for an outside call) a line 
number and the numberof the outside party that you 
wish to consult. The HOLD/FWD lamp will flash. 
When the party you are consulting hangs up, you 
will be connected to the call on hold. Replacing the 
handset will connect you handsfree to the waiting 
party. 
NOTE: Consultation on hold can only be used with 
both stations 
off-/100/c. 
2.15 Intercom Transfer 
The intercom transfer feature allows any intercom 
call to be transferred to ring at any other station in 
your MPK system, even if the station is busy. 
To transfer an intercom call, answer the call (pick up 
your handset), press the XFR/CONF key, dial the 
desired extension number on the dial pad, voice 
announce the call, if desired, and then hang up. 
2.16 Do-Not-Disturb 
A station in the do-not-disturb mode will not receive 
any paging announcements or incoming calls except 
lines which are programmed to ring in. Theoutgoing 
features, however, will still be operational. 
By going off-hook, pressing the HOLD/FWD key 
followed by the asterisk (‘) key and hanging up, you 
can place your phone in the do-not-disturb mode. 
The HOLD/FWD key on your station set will flash at 
a medium rate (once per second, 60 IPM). As a signal 
to the operator, the DSS key for your station (if the 
system is equipped with an optional DSS/BLF) will 
flash at a slow rate (once every two seconds, 30 IPM) 
and an attempted call will produce a modified busy 
signal. Switch 7 inside the keyset must be closed for 
the do-not-disturb feature to function. 
A station will ring in the night mode (for incoming 
C.O. calls, but not for intercom calls) when the 
station is in the do-not-disturb mode if switch 4 
(night station) inside the phone has been closed. FEATURES 
SECTION 340-100-200 
Issue 3, April 1983 
Placing the operator’s station in the do-not-disturb 
mode places the system in night ring mode. See 
Section 3.22. 
To release do-not-disturb, lift the handset and press 
the HOLD/FWD key. 
3.00 EXTERNAL COMMUNICATIONS 
This section defines the features associated with 
calls that are connected to C.O. lines. Features 
discussed include: 
Line Status Indicators 
Outgoing Call Multi-Line Key Selection 
C.O. Line Queuing 
Privacy on C.O. Lines 
Pushbutton Dialing 
Last Number Redial 
Speed Dialing of Frequently Dialed Numbers 
Outside Dial Tone Restore 
Line Key Skipping 
Automatic HandseVHandsfree Control 
On-Hook Monitoring/Dialing 
Music-On-Hold 
Automatic C.O. Line Release (System 
Programmable) 
Hold Recall Time 
Operator’s Recall Time 
Intercom Call Wajting Signal 
Call Splitting 
Call Hold 
Conference Calls (Two Inside Parties, One 
Outside Party) 
Conference Calls (Two Outside Parties, One In- 
side Party) 
Distinctive Central Office Ring Indications 
Night Ring Mode 
3.01 Line Status Indicators 
Line status indicators communicate quickly and 
precisely the status of each CO. line in the system, 
thereby eliminating the need for guesswork or time- 
consuming trial-and-error methods. 
The status of lines l-4 or l-10 are indicated by the 
light-emitting diode (LED) located within each line 
key. The various flashing rates of the LED’s indicate 
the status of each line (where “IPM” is Interruptions 
Per Minute): 
Double flash - Indicates a line you have answered. 
Page 2-5  
						

							FEATURES 
SECTION 340-100-200 
Issue 3, April 1983 
Slow flash - Indicates an incoming call is on 
(every 2 sets, that line. 
30 IPM) .I 
Medium flash - Indicates the line is on hold on 
(every set, your phone. 
60 IPM) 
Fast flash - Indicates that a line placed on hold 
(twice a set, or transferred is recalling back to 
120 IPM) the station, or that a call has been 
transferred to the station. 
Steady light - Indicates that the outside line is in 
use by another station. 
Slowest flash - Indicates that a conference is in 
(every 4 sets, progress. 
15 IPM) 
3.02 Outgoing Call Multi-Line Key Selection 
Multi-line key selection reduces waiting time for 
initiating important outside communications. The 
MPK system allows you to choose one of four or ten 
line keys (dependir’g on your keyset) to place an 
outside call. 
3.03 C.O. Line Queuing 
Use of the CO. line queuing feature ensures your 
access to a busy line as soon as it becomes available. 
Queue onto a line by lifting the handset, pressing the 
busy line key (you will hear a busy signal), pressing 
the pound (#) key and hanging up. The station set will 
produce long bursts of tone and the line key will flash 
at a slow rate (once every 2 seconds, 30 IPM) when 
the line becomes available. To place your call, lift the 
handset, press the line key flashing at the slow rate 
and dial the desired number. 
There may be one line queue per station or five per 
system at the same time. In the rare instance where a 
ring-in occurs during the 1.2 second disconnect of 
the C.O. line you are queuing, you may receive a 
momentary ring-in on your station before it is discon- 
nected, and you are re-entered in the queue. If you are 
able to seize the line within the 1.2 second disconnect 
of the C.O. line, you may be connected. 
3.04 Privacy on C.O. Lines 
Privacy on C.O. lines safeguards your conversations 
from unwanted access by other parties. INTER-TEL PRACTICES 
To ensure privacy, any C.O. line which is in use may 
not be accessed by any other station unless the 
conferencing feature (see Sections 3.19 and 3.20) is 
utilized. 
3.05 Pushbutton Dialing 
Pushbutton dialing, faster and more convenient than 
conventional rotary system dialing, has become a 
standard of most modern key systems. This feature is 
standard on all MPK keysets. The pushbutton dialing 
on this system can be serviced by non-DTMF Central 
Offices. 
3.06 Last Number Redlal 
Last number redial saves dialing time when you reach 
a busy outside number and wish to redial automat- 
ically. You may also use last number redial if you have 
not hung up but have been disconnected and wish to 
re-establish the connection. 
To use the last number redial feature after dialing a 
busy number or being disconnected, simply press the 
DIAL/MSG key without hanging up. This causes the 
system to automatically drop and reaccess the C.O. 
line, and to redial the number. 
To redial the last number dialed after hanging up, lift 
the handset, and select an outside line key, press the 
DIALIMSG key and the asterisk (*) key. The system 
will automatically redial the last number dialed. Note 
that this feature will not work if the last number dialed 
manually was longer than 10 digits or diaied via the 
speed dial feature (see Section 3.07). 
3.07 Speed Dialing of Frequently Dialed Numbers 
To save you dialing time, each multi-line station may 
store up to 10 frequently-dialed numbers (each up to 
lOdigits in length) which may then bedialed automat- 
ically by pressing the DIAL/MSG key and a single 
digit on the dial pad. 
Numbers are stored by pressing the DIAL/MSG key 
and any single digit O-9on the dial pad for the memory 
location followed by the frequently-used number that 
you wish to store. Repeat for all numbers that you 
wish to store, choosing a new memory location for 
each number. Then press the ON/OFF key. 
Stored numbers are erased by disconnecting the line 
cord to the station set or by entry of a new number in a 
specific memory location. Onboard battery back-up 
cannot prevent loss of these numbers if power to the 
Page 2-6  
						

							INTER-TEL PRACTICES FEATURES 
SECTION 340-100-200 
Issue 3, April 1983 
station is lost. System battery back-up can prevent 
the numbers from being lost during AC power outages. 
To dial a stored number, simply lift the handset, select 
an available line key, press the DIAL/MSG key and the 
memory code. Forgetting to press an available line 
key before pressing the DIAL/MSG key and the 
memory code, will erase the stored number. 
3.08 Outside Dial Tone Restore 
Outside dial tone restore prevents others from 
accessing a line which you wish to keep in order to 
place another call. 
After making an outside call, simply press the line key 
a second time instead of hanging up. The system will 
automatically restore the outside dial tone. 
3.09 Line Key Skipping 
Line key skipping saves you from having to hang up 
and wait for dial tone each time you finish a call and 
want to start another. 
While on an outside line, you may select another line 
by pressing a second outside line key. This will 
automatically release the first line and access the 
second line. 
3.10 Automatic HandseVHandsfree Control 
Optional handset/handsfree control provides added 
system versatility for external communications as 
well as for internal communications (see also Section 
2.08). 
DIP switch 5 inside the keyset station should be 
closed for this feature to function properly. To switch 
from handset to handsfree control during an out- 
going call, simply press the ON/OFF key and hang up. 
To switch from handsfree to handset control, lift the 
handset. The ON/OFF key will light to advise you 
when you are in the handsfree mode. 
NOTE: On stations which have been adapted for full- 
duplex speakerphone operation (DIPswitch 5 
closed), an external speaker must be con- 
nected to eliminate feedback. 
3.11 On-Hook Monitoring/Dialing 
With the on-hook monitoring feature, stations not 
equipped with optional external speakers may be 
used to monitor handsfree an outside line such as time, weather, recorded messages and waiting on 
hold. 
To monitor on-hook, simply press the ON/OFF key 
and a line key, then dial the outside number. 
When this feature is in use, the handset microphone is 
not activated. For this reason, you may not speak to 
an outside party although the phone speaker is 
connected to amplify the receiving part of the call. 
3.12 Music-On-Hold 
Music-on-hold not only reassures pote’ntial cus- 
tomers that they are still connected, but also serves to 
make the wait as pleasant as possible. 
Any MPK station or outside line placed on hold will 
receive music-on-hold. The CPU board is shipped 
with a standard melody integrated circuit chip with 
the song “Holidilia.” 
An external music source 
adapter is also available. 
3.13 Automatic C.O. Line Release (System Pro- 
grammable) 
Automatic C.O. line release allows you to help dictate 
the conditions under which the system will retain or 
release a C.O. line. 
The MPK automatic CO. line release feature ensures 
that only 100 millisecond interruptions on a CO. line 
that is on hold will automatically release that-line. This 
can be optionally set at 1.2 seconds by entering 
system option 6 (1.2 second held call loop release) 
into the system. 
3.14 Hold Recall Time 
The capability to program a hold recall time not only 
ensures that calls placed on hold will not go 
unanswered, but also ensures that the hold recall time 
for returning an unanswered call on hold to the 
sender is the most appropriate for your particular 
office environment. ‘. 
Because of the programmable hold recall time 
feature, a CO. call that has been placed on hold on a 
station will ring back to that station after a program- 
mable hold recall time period has expired. This time is 
initially set to 60 seconds but may be reprogrammed 
from 1 to 255 seconds. See also Section 3.15. 
Page 2-7  
						

							FEATURES 
SECTION 340-100-200 
Issue 3, April 1983 
3.15 Operator’s Recall Time 
The operator’s recall time functions with the hold 
recall time to ensure doubly that no call goes 
unanswered. 
Because of this feature, a C.O. call that has been 
placed on hold will automatically ring back to the 
operator after ringing back to the station, if no action 
at the station was taken within the second program- 
mable hold recall time parameter. 
If the system is in night mode, a call does not return to 
the operator but remains at the station for 10 minutes. 
3.16 Intercom Call Waiting Signal 
An intercom call waiting signal alerts you to a waiting 
intercom call without jeopardizing the privacy of your 
CO. call. 
The intercom call waiting signal feature causes a 
station on an intercom call or a CO. call to receive 
one double beep over its handset (not audible to the 
outside party). The HOLD/FWD key will flash at a fast 
rate (twice per second) when an intercom call is 
incoming to the station (camped-on). As soon as the 
outside call is terminated, the intercom call will be 
connected automaticaliy or the station may split (see 
Section 3.17) between the two calls. 
DIP switch 3 inside the keyset must be closed to hear 
the intercom incoming call waiting signal on the 
handset. For those station users not desiring off-hook 
ringing, the visual signal (flashing HOLD/FWD) will 
still appear. 
3.17 Call Splitting 
Call splitting allows you to switch easily between an 
ongoing outside call and a camped-on intercom call. 
To use this feature during an outside call, simply 
press the HOLD/FWD key. This puts the outside call 
on hold and connects the intercom call to the station. 
To return to the outside call, press the line key 
flashing at the medium rate (once a second, 60 IPM). 
This returns the intercom call to a camped-on 
condition and reconnects the outside call that was 
placed on hold. 
If a busy line key is pushed accidentally, a busy tone 
will be heard. The original line key lamp will be 
extinguished but the call may not drop unless the 
outside party hangs up. Pressing the line key INTER-TEL PRACTICES 
immediately will reconnect you to the party and light 
the lamp on the line key.  
. 
3.18 Call Hold 
With the call hold feature, a station may be used in any 
other available manner during a CO. call. 
Place a C.O. call on hold by pressing the HOLD/FWD 
key. The line key of the held call will flash et a medium 
rate (once a second, 60 IPM) on all keysets and you 
will hear intercom dial tone. A call on hold will flash at 
a medium rate and can be picked up at any station. 
3.19 Conference Calls (Two Inside Parties, One 
Outside Party) 
Using the versatile MPK conference call feature, two 
inside parties and one outside party can share a 
conversation on the same line. 
To set up a conference call between two inside 
parties and one outside party while you are on an 
outside call, ask the outside party to hold. Then press 
the XFFVCONF key and dial the extension number of 
the inside party to be conferenced. After you instruct 
the inside party to lift the handset, press the 
XFFVCONF key. Your XFR/CONF lamp will be lit 
steady and the XFR/CONF lamp of the second party 
will be flashing. To end the conference call, press the 
asterisk (*) key and replace the handset. All parties 
will be disconnected. 
If the second party does not go off-hook before the 
XFFVCONF key is pressed a second time, you will be 
dropped back to dial tone and redialing the extension 
will be necessary to re-establish the conference. 
If the second party is busy, you must press the line 
key to re-enter the line. 
If you put the conference on hold (by pressing the 
HOLD/FWD key), you may re-enter the conference 
by pressing the XFR/CONF key. 
Only one conference at a time can be set up from a 
station. 
If necessary you may split to another incoming 
intercom call by pressing the HOLD/FWD key. You 
may then re-enter the conference by pressing the. 
XFIVCONF key, hookflashing and pressing the 
XFFVCONF key again. 
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							INTER-TEL PRACTICES 
NOTE: If the outside party chooses to hang up while 
you are still split to the intercom call, the 
conference will be dropped. 
To eliminate only yourself from the conference call, 
hang up. The outside party will still be connected to 
the remaining inside phone. 
To drop the second inside party only, place the 
outside party on hold by pressing the HOLD/FWD 
key. 
If the second inside party in a conference goes on- 
hook, presses the HOLD/FWD or certain other keys 
twice, the second inside party cannot re-enter the 
conference and the outside party will be connected to 
the other inside party. 
3.20 Conference Calls (Two Outside Parties, One 
inside Party) 
The conference call feature can also be used to set up 
a conference between two outside parties and one 
inside party (see also Section 3.19). 
To arrange a conference call between two outside 
parties and one inside party, select an available line 
key and dial the first outside party. Ask the party to 
hold, press the HOLD/FWD key, call the second 
outside party to be conferenced and press the 
HOLD/FWD key again. With both outside parties 
holding, press the XFFVCONF key. This will bring all 
parties together in a conference. To end the confer- 
ence, press the asterisk (*) key and replace the 
handset. All parties will be disconnected. 
To split to an incoming intercom call waiting, just 
hang up. You will be automatically connected to the 
incoming intercom call. To split to another incoming 
C.O. call, hookflash and press the slow (once every 
two seconds, 30 IPM) flashing line key. 
To eliminate only yourself from the conference call, 
simply hang up. (Note: because of the loop start 
function, it may be necessary to press the asterisk [‘I 
key as well to drop the conference.) The other two 
parties will still be connected until either party hangs 
up. To re-enter, pick up the handset and press the 
XFRKONF key. 
Only one conference at a time can be set up from a 
station. If you choose to place the other parties on 
hold, you can re-establish the conference by pres- 
sing the XFFVCONF key. This will conference the 
calls on hold on the two lowest number line keys. FEATURES 
SECTION 340-100-200 
Issue 3, April 1983 
If either outside party hangs up during conferencing, 
dial tone will be heard by both remaining parties. To 
eliminate the dial tone, place the remaining outside 
party on hold and press the medium (once a second, 
60 IPM) flashing line key to resume conversation. 
3.21 Distinctive Central Office Ring Indications 
An incoming C.O. call beeps distinctively for two 
seconds every three seconds when the station is 
on-hook. If the station is off-hook (and switch 3 is 
closed) the call will beep once every 15 seconds 
through the handset. However, only the inside party 
will hear the beeping tone. 
3.22 Night Ring Mode 
The night ring mode feature modifies operation of the 
system to reflect night time office activity. Instead of 
ringing only the operator, incoming C.O. calls ring all 
the station sets specifically programmed to be night 
stations. Outgoing features of the system remain the 
same. 
The system may be placed in night ring mode simply 
by placing the operator’s station in the do-not- 
disturb mode (going off-hook, pressing the HOLD/ 
FWD key followed by the asterisk [‘I key and hanging 
up). To designate a keyset as a night station, enable 
DIP switch 4 inside the station. 
4.00 MOVING CALLS AND LOCATING PERSON- 
NEL 
This section defines the features associated with 
transferring calls within the system and locating 
personnel. The features discussed include: 
Call Transfer 
Call Transfer to Hold 
Transfer Recall Time (System Programmable) 
Reverse Transfer 
Transfer Cancel (Call Screening) 
Transfer Search 
Zone Paging 1-4 and All-Page 
Message Waiting Indication 
Message Center 
Executive Priority Call Waiting 
External Paging Speakers 
Account Codes 
Multiple Speed Dialing 
Station Transfer Security 
Page 2-9  
						

							. -. -. -..-- 
SECTION 340-100-200 
Issue 3, April 1983 
4.01 Call Transfer 
was transferred to hold and press the XFR/CONF key. 
The call will then appear on hold (medium’flashing 
The call transfer feature allows any C.O. call to be 
line key, 60 IPM) at your station. To establish the 
transferred to any other station in your MPK system, connection, press the line key f!ashing at the medium 
even if the station is busy. rate. 
To transfer a call, answer the call (press the slow 
flashing line key), press the XFFVCONF key (the line 
key will flash at a medium rate), dial the desired 
extension number on the dial pad, voice announce 
the call, if desired, and then hang up. (See also 
Section 4.03.) 
4.02 Call Transfer to Hold 
The call transfer to hold feature allows anyC.0. call to 
be transferred to hold at any other station in your 
MPK system. 
To transfer a call to hold, answer the incoming call 
(press the slow flashing line key), press the XFR/ 
CONF key (the line key will. flash at a medium rate), 
dial the desired extension on the keypad, and press 
the HOLD/FWD key. The call will then appear on hold 
at the dialed extension and ;lou will be returned to the 
intercom dial tone. 
4.03 Transfer Recall Time (System Programmable) 
A transfer recall time, like the hold recall time 
discussed in Section 3.14, helps ensure that no call 
goes unattended. A transfer red call that has not been 
answered within a programmable transfer recall time 
limit will automatically resall to the station that 
initiated the transfer. It will then ring on that station 
for a single hold recall time. If still not answered, it will 
recall to the operator’s station. 
4.04 Reverse Transfer 
Reverse transfer allows you the freedom to move 
from station to station withcut risking the loss of your 
calls. 
With the reverse transfer feature, you can answer 
from any keyset any C.O. call that is ringing or was 
transferred to hold at another station, unless the 
station is in the do-not-disturb mode. (Of course, if 
the call is on hold or ringing in, it is flashing at all 
stations and can beaccessed by pressing the flashing 
line key.) 
To reverse transfer a call, lift the handset at any 
station, dial the extension where the call is ringing or Reverse transfer is allowed for calls which are ringing 
at the operator’s station. Lines on hold at the 
operator’s station may not be reverse transferred. 
4.05 Transfer Cancel (Call Screening) 
The transfer cancel feature may be used to return 
transferred calls to your station (call screening) if the 
party to which the call is transferred is not there or 
refuses the call. 
If the party requested refuses the transferred call 
(before going on-hook to complete the transfer) or is 
unavailable, press the medium flashing line key 
(once a second, 60 IPM) instead of the hookswitch. 
This action will cancel the transfer and reconnect the 
outside party to your phone. See also Section 4.06. 
4.08 Transfer Search 
The transfer search feature allows a station to search 
through a series of extensions to Ic ;ate a party before 
transferring a call. 
After answering the outside call, press XFREONF 
and dial the first extension. Anncunce the call and 
hang up or (to continue the search), press XFfVCONF 
and dial another extension. Repeat as desired until 
you have found the party, then hang up. 
4.07 
Zone Paging l-4 and All-Page 
Any MPK station may also be used as a versatile 
public address device. Paging announcements may 
be 
made to all or specific pre-determined groups of 
key stations. 
To make a paging announcement, lift the handset and 
press the asterisk (*) key followed by any single digit 
between 1 and 5 on the dial pad. The digit pressed 
will select the group of stati0r.s to receive the 
announcement. On the 1032T MO Jel only, you may 
press the SPCL key for an all-zone page instead of 
pressing asterisk (‘) and 5 on the keypad. 
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