Mitel 8520 User manual

MITEL
8520
Telephone User Guide

Mitel®8520 Telephone User Guide – Issue 14, June 2010
8520 Telephone Quick Reference Guide
This guide provides information for frequently used
features. For more information about these and other
features, refer to the user guide. For voice mail
information, refer to the voice mail user guide for your
system.
Feature Buttons
Most of the following feature codes work when your
telephone is idle. However, if you are on an active call or
if the telephone is off-hook, you may need to press
(Special) to activate the feature before you enter
the feature code.
If you make a mistake when entering numbers or
characters, you can press the MUTE button to move the
cursor to the left and delete the characters entered, or
you can press *to cancel the feature.
Commonly Used Feature Codes
Contact your system administrator for more information
about system features.
Button Action
Activates features while on active calls.
Provides volume control.
Scrolls through feature options.
Activates Handsfree Mode.
Turns speaker on and off.
Places the current call on hold.
CALL Selects an outside line or answers a
call.
IC Answers an intercom (internal) call.
MUTE Mutes the microphone. Left/backspace
when entering dialpad characters.
DND Turns DND mode on or off.
PAGE Selects a page zone to place a page.
STN SPDL Views or accesses Station Speed-Dial
numbers.
SYS SPDL Views or accesses System Speed-Dial
numbers.
REDIAL Redials a telephone number.
CNF Places a conference call.
TRANSFER Transfers the current call.
MSG Connects to Inter-station and voice
messages. Toggles between Alpha
Mode and Numeric Mode.
FWD Forwards the call to the specified
number. Right/forward when entering
dialpad characters.
ANSWER Answers calls.
OUTGOING Selects an outgoing line for external
calls.
Feature Code
ACD Agent – Log In/Out 328
Automatic IC Call Access – On/Off 361
Automatic Trunk Call Access – On/Off 360
Background Music – On/Off 313
Call Forward – All Calls 355
Call Logging 333
Conference 5
Default Station 394
Directory 307
Display Time And Date 300
Do-Not-Disturb – On/Off 372
Dynamic Extension Express – On/Off 364
Dynamic Extension Express Handoff 388
Handsfree – On/Off 319
Headset – On/Off 317
Hold – Individual 336
Hold – System 335
Hunt Group – Remove/Replace 324
Message – Cancel Left Message 366
Message – Delete Message 368
Message – Leave Message 367
Message – Messages Menu 365
Microphone Mute – On/Off 314
Page Receive – On/Off 325
Program Buttons 397
Program Station Password 392
Programmable Buttons – Default 395
Queue (Callback) Request 6
Record-A-Call 385
Reverse Transfer (Call Pick-Up) 4
Ring Tone Selection 398
Station Speed Dial 382
Station Speed Dial – Programming 383
Switch Keymap 399
System Forward – On/Off 354
System Speed Dial 381
View Button Assignments 396

Mitel®8520 Telephone User Guide – Issue 14, June 2010
Answering Calls
Lift the handset, or press (Speaker) to answer
a call while using a headset or to answer a call in
Handsfree Mode.
Placing Emergency Calls
Dial the emergency number (911 U.S. or
999/112 Europe). The system immediately places
the emergency call as soon as you dial the
number, even if you do not select an outside line.
Placing Internal (Intercom) Calls
With or without the handset lifted, dial the
extension number. If you enter incorrect digits,
you can press the MUTE button to move the
cursor backward, deleting the last digits entered.
If you are using Handsfree Mode, listen for the
double tone, and then begin to speak.
Placing External Calls
Press the OUTGOING button or enter the
Outgoing Call access code (the default code is
8), and then dial the number.
Redialing External Numbers
With or without the handset lifted, press the
REDIAL button. The system automatically
selects a line and dials the number.
Transferring Calls to Other Extensions
1. While on the call, press the TRANSFER button,
and then enter the extension number.
2. Do one of the following:
• Wait for an answer, announce the call, and
then hang up. If the extension is
unavailable, press the flashing IC or Call
button to return to the caller.
• Hang up to transfer the call and disconnect
the call from your telephone.
Forwarding Calls
1. Press the FWD button, and then enter the
feature code, if applicable. ENTER FORWARD
DEST appears.
2. Enter the extension number, or press the
OUTGOING button (the default code is 8), and
then dial the telephone number.
Placing Conference Calls
1. While on the first call, press the CNF button to
place the call on hold. CALL NEXT PARTY TO
CNF appears.
2. Place a call to the next conference party. For
external calls, press the OUTGOING button or
enter the Outgoing Call access code (8is the
default code), and then dial the number.
3. After the party answers, announce the
conference, and then press the CNF button to
place the call on hold. If necessary, repeat this
step to add the remaining conference party.
4. Press the CNF button again to start the
conference. CNF IN PROGRESS appears.
Viewing and Responding to Messages
1. With the handset on-hook, press the MSG
button. Messages are displayed as first in/first
out. If there is more than one message, you can
repeatedly press the MSG button to scroll
through the messages.
2. When the desired message is displayed, press #
or lift the handset for privacy, and then press # to
respond. (If your handset is off-hook and you
press the MSG button, you automatically place a
call to the party or message center who left the
message.)
Using Do-Not-Disturb
1. Press the DND button, and then do one of the
following:
• Press (Up) or (Down) to scroll
through the messages.
• Enter the two-digit number for the DND
message.
2. If applicable,enter the additional text for the
DND description.
3. Press (Speaker) or lift and replace the
handset.
Placing a Page Announcement
1. Press the PAGE button.
2. Enter the page-zone number (0to 9).
3. After the tone, make your announcement, and
then hang up.

Mitel®8520 Telephone User Guide – Issue 14, June 2010 Page i
Notice
This guide is released by Mitel Networks Corporation and provides information necessary to use the
8520 Telephone. The guide contents, which reflect current Mitel standards, are subject to revision or change without
notice.
Some features or applications mentioned may require a future release and are not available in the initial release.
Future product features and applications are subject to availability and cost. Some features or applications may
require additional hardware, software, or system administrator assistance.
For sales, service, or technical support, contact your local authorized provider:
If you do not know the contact information for your local provider, use the “Partners” link at the top of the Mitel home
page (www.mitel.com) to find a location near you.
If you have any questions or comments regarding this user guide or other technical documentation, contact the
Technical Publications Department (USA) at:
[email protected]
Mitel®is a registered trademark of Mitel Networks Corporation.
All other trademarks mentioned in this document are the property of their respective owners, including Mitel Networks
Corporation. All rights reserved.
© 2003–2010 Mitel Networks Corporation
Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or
promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse
any copyrighted component of this work in other works must be obtained from Mitel.
Enter provider information above.

Page ii Mitel®8520 Telephone User Guide – Issue 14, June 2010
Important Safety Instructions and Precautions
Remember the following safety guidelines when using the telephone.
Programming Emergency Numbers
Make sure to do the following when programming emergency numbers and/or making test calls to emergency
numbers:
• Remain on the line and briefly explain to the dispatcher the reason for the call.
• Perform tests during off-peak hours such as early morning or late evenings.
Safety Notices
The following notices may appear on the product or in the technical documentation.
Maintenance and Repair
There are no user serviceable parts inside the telephones. For repairs, return the telephone to an authorized Mitel
provider.
Product Disposal Instructions
This symbol indicates that the product is classified as electrical or electronic equipment and should not be disposed of with
other commercial or household waste at the end of its working life. For appropriate disposal and recycling instructions,
contact your local Mitel provider.
The Waste of Electrical and Electronic Equipment (WEEE) Directive (2002/96/EC) was established by the European Union to
minimize negative impact on the environment, control hazardous substances, and curtail landfill expansion by using the best
available recovery and recycling techniques.
Depending upon which software version your telephone system is using, some of the features included in this guide
may not be available for your telephone. Check with your system administrator to see which software version your
telephone system currently uses and if there are any feature restrictions for your system.
Notice Description
Caution indicates a potentially hazardous situation which, if not avoided, may result in minor
or moderate injury and/or damage to the equipment or property.
Warning indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury.
Danger indicates an imminently hazardous situation which, if not avoided, will result in death
or serious injury.
The exclamation point within an equilateral triangle indicates that important operating and
maintenance (servicing) instructions are included in the literature accompanying the
product.
NOTE Changes or modifications not expressly approved by Mitel may void the user’s right to operate the
equipment.

Mitel®8520 Telephone User Guide – Issue 14, June 2010 Page iii
Phone Usage
This equipment is not for connection to the telephone network or public coin phone service. It is only for use when
connected to Mitel systems.
WARNING
When using your telephone equipment, basic safety precautions should always be followed to reduce the risk
of fire, electric shock and injury to persons, including the following:
• Do not use this product near water, for example, near a bath tub, wash bowl, kitchen sink or laundry
tub, in a wet basement, or near a swimming pool.
• Avoid using a phone (other than a cordless type) during an electrical storm. There may be a remote risk
of electric shock from lightning.
• Do not use the telephone to report a gas leak in the vicinity of a leak.
• Do not connect directly to the Public Switched Telephone Network (PSTN). Any connection of this
phone to an off premise application, an out of plant application, any other exposed plant application, or
to any equipment other than the intended application may result in a safety hazard, and/or defective
operation, and/or equipment damage. “Exposed plant” means where any portion of the circuit is subject
to accidental contact with electric lighting or power conductors operating at a voltage exceeding 300
volts between conductors or is subject to lightning strikes.
• The socket outlet, if used, shall be located near the equipment and shall be easily located by the user.
• Use only Mitel approved power adaptors.
• The handset supplied with the telephone is not certified for use with any other phone. Use of the
handset with any other phone may have the potential to cause hearing loss in the event of a lighting
strike on the outside plant wiring.

Page iv Mitel®8520 Telephone User Guide – Issue 14, June 2010
Notice to Canadian Customers
The Class B digital apparatus complies with Canadian ICES-003.
Notice to U.S. Customers
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Notice to European Customers
We, Mitel Networks LTD.
Of, Mitel Castlegate Business Park
Portskewett
Caldicot
NP26 5YR
UK
Declare that for the hereinafter mentioned product the presumption of
conformity with the applicable essential requirements of
DIRECTIVE 1999/5/EC OF THE EUROPEAN
PARLIAMENT (RTTE DIRECTIVE) AND OF THE COUNCIL is given.
Mitel Telephone: 8520
Any unauthorized modification of the product voids this Declaration.
For a copy of the original signed Declaration of Conformity (in full conformance with EN45014), please contact the Regulatory
Approvals Manager at the above address.

Contents
Mitel®8520 Telephone User Guide – Issue 14, June 2010 Page v
Contents
Getting Started 1
Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
About Your Telephone. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Feature Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Handset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Message Indicator Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Programmable Buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Dialpad Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Feature Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Phone Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Comfort and Safety Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Headset Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Personalizing Your Phone 9
Adjusting the Viewing Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Changing Volume Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Changing the Ring Tone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Adjusting the Display Contrast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Listening to Background Music . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Changing the Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Using the Dialpad Buttons to Enter Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Using Programmable Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Default Access Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Outside Line Access Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Extension Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Default Feature Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Viewing Button Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Resetting Programmable Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Resetting the Telephone to the Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Switching Keymaps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Activating Door Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Contents
Page vi Mitel®8520 Telephone User Guide – Issue 14, June 2010
Answering and Placing Calls 19
Answering Calls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Answering Waiting Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Using Automatic Call Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Redirecting Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Using Automatic Trunk Answer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Placing Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Placing Emergency Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Placing Internal Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Requesting a Callback (Queuing the Phone). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Using Camp-on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Using Off-Hook Voice Announce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Placing External Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Redialing a Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Using Speed Dial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Using System Speed Dial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Using Station Speed Dial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Storing Station Speed-Dial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Dialing Station Speed-Dial Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Deleting Station Speed-Dial Entries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Assigning Speed-Dial Numbers to Programmable Buttons . . . . . . . . . . . . . . . . . . . . . . . . 26
Using the Directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Using Account Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Call Features 29
Using Handsfree Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Enhanced Speakerphone Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Using Ring Intercom Always . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Using Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Placing Calls On Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Entering a Hookflash. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Transferring Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Transferring Calls to Other Extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Transferring Calls to External Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Using Reverse Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Viewing Your System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Viewing Caller ID Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Contents
Mitel®8520 Telephone User Guide – Issue 14, June 2010 Page vii
Forwarding Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Manual Call Forwarding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
System Forwarding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Using Dynamic Extension Express . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Placing Conference Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Adding a Conference Party . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Transferring a Conference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Dropping Out of a Conference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Ending a Conference and Placing all Parties on Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Using Record-A-Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Using Group Listen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Using Call Logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Using Secondary Extension Buttons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Using Configuration Assistant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Changing Your Station Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Accessing Configuration Assistant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Changing the Dynamic Extension Express Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Changing the DND Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Changing the Manual Call Forwarding Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Using Remote Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Changing the Dynamic Extension Express Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Changing the DND Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Changing the Manual Call Forwarding Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Changing Your Station Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Messages 45
Using Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Leaving Messages at Other Extensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Viewing and Responding to Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Canceling Messages Left at Other Extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Deleting Waiting Inter-Station Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Using Do-Not-Disturb (DND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Using Reminder Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Paging Other System Users . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Placing a Page Announcement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Enabling or Disabling the Page Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Contents
Page viii Mitel®8520 Telephone User Guide – Issue 14, June 2010
Hunt Groups 51
Logging in to ACD Hunt Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Logging out of ACD Hunt Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Stopping the ACD Hunt Group Wrap-up Timer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Other Hunt Group Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Requesting Agent Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Diverting Hunt Group Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Hunt Group Supervisor Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Accepting or Rejecting Agent Help Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Monitoring Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Stealing Hunt Group Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Using Barge-In . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Troubleshooting 55
Contact Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Index 59

Mitel®8520 Telephone User Guide – Issue 14, June 2010 Page 1
Getting Started
Getting Started
Welcome
The instructions in this guide are for using the8520 Telephone on the Mitel 5000
Communications Platform (CP). The Quick Reference Guide located at the beginning of this
guide is an overview of frequently used features.
Your telephone should be powered on and ready to use. If the display is blank, or if the display
name, extension number, or time or date are incorrect, contact your system administrator for
assistance.
Because a variety of voice mail products work with the Mitel 5000 CP, this guide does not
include voice mail instructions. For voice mail instructions, refer to the voice mail user guide for
your system. For example, refer to the Enterprise Messaging, Basic Voice Mail, and Embedded
Voice Mail Card User Guide, part number 835.3205, or the Mitel NuPoint Unified Messaging
User Guide (on the Mitel Web site (http://edocs.mitel.com). Contact your system administrator
for more information about your voice mail system.
NOTE
Because many phone features can be programmed to perform various tasks,
some features may work differently than the descriptions in this guide. Contact
your system administrator for more information.

Getting Started
Page 2 Mitel®8520 Telephone User Guide – Issue 14, June 2010
About Your Telephone
Your telephone is equipped with a two-line display, a hearing aid-compatible handset, a
Message Indicator lamp, an internal speaker and microphone, and two basic types of buttons.
• Dialpad buttons: Allow you to enter numbers and letters.
• Feature buttons: Provide quick access to various phone and voice mail features.
This photo shows the external components of the telephone. See “Feature Descriptions” on
page 3 for more information about the telephone features.
1 – Handset 5 – Programmable buttons
2 – Display 6 – Dialpad buttons
3 – Message Indicator lamp 7 – Feature buttons
4 – Hold button 8 – Speaker
1 1
8
2
3
4
5
6
7

Mitel®8520 Telephone User Guide – Issue 14, June 2010 Page 3
Getting Started
Feature Descriptions
The following sections describe default configurations. Your telephone may be programmed
differently. Contact your system administrator for more information. See “About Your Telephone”
on page 2 for phone feature locations.
Handset
The handset provided with this equipment is hearing aid compatible (HAC). If you are using a
headset or if you are in Handsfree Mode, you do not need to use the handset.
Display
The phone has a two-line display. When the telephone is idle, the display shows your extension
number, your username, the time of day, and the date. At other times it might show reminder
messages, Do-Not-Disturb (DND) messages, number dialed, call sources, elapsed time of calls,
current call costs, error messages, and so on.
Following are the feature display abbreviations:
Abbreviation Word or Phrase
ACCT CODE Account Code
CNF Conference
DEST Destination
DIR Directory
DND Do-Not-Disturb
EXT Extension
LOGS Call Logging
MSG Message
RCL Recall
SPKR Speaker
SPKRPHN Speakerphone
STN SPD Station Speed Dial
SYS SPD System Speed Dial
TFR Transfer
TG Trunk Group (a group of outside lines)
TRNK Trunk (an outside line)
MISSED (number) Missed Calls

Getting Started
Page 4 Mitel®8520 Telephone User Guide – Issue 14, June 2010
Message Indicator Lamp
The Message Indicator lamp flashes or stays lit to indicate call, message, and feature activity.
See “Using Messages” on page 45.
Message Indicator lamp signals are described in the following table.
Programmable Buttons
Most of the buttons on your telephone are preprogrammed by the system administrator;
however, you can program some of the telephone buttons for quick access to features or
speed-dial entries. See “Using Programmable Buttons” on page 13 for instructions.
Dialpad Buttons
Use the dialpad buttons to dial phone numbers, enter feature codes, and to enter characters
when using features that require text input.
Speaker
The speaker provides audio for handsfree calls and background music. See “Using Handsfree
Mode” on page 29 for information about handsfree calls. See “Listening to Background Music”
on page 10 for more information about background music.
NOTE
By default, the Message Indicator lamp is lit when you receive new messages.
However, this lamp can be programmed for other functions. Contact your system
administrator for more information.
Message Indicator Lamp Signal Description
Rapidly flashing You have an incoming call.
Slowly flashing You have a waiting message or callback message.
On You are on a call or using a feature.
Off Your telephone is idle.

Mitel®8520 Telephone User Guide – Issue 14, June 2010 Page 5
Getting Started
Feature Buttons
Feature buttons provide quick access to commonly used features. See the following table for
descriptions.
Button Action
(Special) Activates features while on active calls. Depending on how your system
is configured, you may need to press this button before you dial a
feature code.
(Up) (Down) Provides volume control for the ringer, handset, and speaker.
Scrolls through feature options.
(Speaker) Activates Handsfree Mode (speakerphone). See “Using Handsfree
Mode” on page 29.
Activates features.
(Hold) Places the current call on hold.
CALL Selects an outside line or answers a call.
IC Answers an intercom (internal) call.
MUTE Mutes the microphone.
Left/backspace when entering dialpad characters. See “Using the
Dialpad Buttons to Enter Characters” on page 11.
DND Turns DND mode on or off. See “Using Do-Not-Disturb (DND)” on
page 47.
PAGE Selects a page zone to place a page.
STN SPDL Views or accesses Station Speed-Dial numbers.
SYS SPDL Views or accesses System Speed-Dial numbers.
REDIAL Redials last external telephone number.
CNF Places a conference call.
TRANSFER Transfers the current call.
MSG Connects to Inter-station and voice messages.
Toggles between Alpha Mode and Numeric Mode when entering dialpad
characters.
FWD Forwards the call to the specified number.
Right/forward when entering dialpad characters. See “Using the Dialpad
Buttons to Enter Characters” on page 11.
ANSWER Answers calls.
OUTGOING Selects an outgoing line for external calls.

Getting Started
Page 6 Mitel®8520 Telephone User Guide – Issue 14, June 2010
Phone Signals
The phone has several audio and visual signals to indicate feature activity. The following are a
few helpful tips:
• Any buttons that are lit or blinking indicate call or feature activity.
• All phone button lamps illuminate at the same time for a few seconds when the telephone
is reset or powered on.
• The following actions may cause an error tone:
oPressing an invalid button combination.
oSelecting a restricted feature.
oDialing a restricted or invalid number.
oDialing too slowly between digits.
oWaiting too long before performing the next step.
To correct, hang up and try again.
• Many features “time-out” if you wait too long before performing the next step. If this
happens, you must start over.
• “Off-hook” means the handset is in use. “On-hook” means the handset is idle.
Comfort and Safety Tips
Observe the following comfort and safety tips when using the telephone:
• Do not cradle the handset: Prolonged use of the handset can lead to neck, shoulder, or
back discomfort, especially if you cradle the handset between your neck and shoulder. If
you frequently use the telephone, you might find a headset more comfortable. See
“Headset Instructions” on page 7.
• Adjust the viewing angle:The built-in stand tilts to give you a better view of the buttons.
See “Adjusting the Viewing Angle” on page 9.
• Protect your hearing: Because prolonged exposure to loud sounds can contribute to
hearing loss, keep the volume at a moderate level. You can adjust the volume levels of the
handset receiver or headset. See “Changing Volume Levels” on page 9.

Mitel®8520 Telephone User Guide – Issue 14, June 2010 Page 7
Getting Started
Headset Instructions
When using a headset, press (Speaker) to connect to or disconnect from calls.
If you have both a headset and a handset connected to your telephone and you are using the
headset, you can quickly transfer audio to the handset by lifting the handset from the cradle.
Press (Speaker) to transfer the call back to the headset before replacing the handset in the
cradle.
To connect and activate the headset:
1. Insert the headset jack into the Headset port located on the back of the telephone. See
“Phone Signals” on page 6.
2. Dial 317 to turn the headset on. HEADSET MODE ON appears.
To turn off Headset Mode and activate the handset and speakerphone:
Dial 317.HEADSET MODE OFF appears. The handset or speakerphone is now
activated.
NOTES
The headset must be hearing aid compatible (HAC).
If your headset has a power-saver mode, make sure the system administrator has
enabled the “Headset Connect Tone” feature. If this is not enabled, you may miss
the first few seconds of an incoming call.