Mitel 6873i User manual

Mitel 6873i SIP Phone
RELEASE 6.0.0 USER GUIDE
58016338 REV00
April, 2021

Notice
The information contained in this document is believed to be accurate in all respects but is not warranted by Mitel Networks™
Corporation (MITEL®). The information is subject to change without notice and should not be construed in any way as a commit-
ment by Mitel or any of its affiliates or subsidiaries. Mitel and its affiliates and subsidiaries assume no responsibility for any errors
or omissions in this document. Revisions of this document or new editions of it may be issued to incorporate such changes.No
part of this document can be reproduced or transmitted in any form or by any means - electronic or mechanical - for any purpose
without written permission from Mitel Networks Corporation.
Trademarks
The trademarks, service marks, logos and graphics (collectively “Trademarks”) appearing on Mitel's Internet sites or in its publi-
cations are registered and unregistered trademarks of Mitel Networks Corporation (MNC) or its subsidiaries (collectively "Mitel")
or others. Use of the Trademarks is prohibited without the express consent from Mitel. Please contact our legal department at
[email protected] for additional information. For a list of the worldwide Mitel Networks Corporation registered trademarks, please
refer to the website: http://www.mitel.com/trademarks.
®,™ Trademark of Mitel Networks Corporation
© Copyright 2021, Mitel Networks Corporation
All rights reserved

Software License Agreement
Mitel, hereinafter known as “Seller”, grants to Customer a personal, worldwide, non-transferable, non-sublicenseable and non-
exclusive, restricted use license to use Software in object form solely with the Equipment for which the Software was intended.
This Product may integrate programs, licensed to Mitel by third party Suppliers, for distribution under the terms of this agreement.
These programs are confidential and proprietary, and are protected as such by copyright law as unpublished works and by inter-
national treaties to the fullest extent under the applicable law of the jurisdiction of the Customer. In addition, these confidential
and proprietary programs are works conforming to the requirements of Section 401 of title 17 of the United States Code.
Customer shall not disclose to any third party such confidential and proprietary programs and information and shall not export
licensed Software to any country except in accordance with United States Export laws and restrictions.
Customer agrees to not reverse engineer, decompile, disassemble or display Software furnished in object code form. Customer
shall not modify, copy, reproduce, distribute, transcribe, translate or reduce to electronic medium or machine readable form or
language, derive source code without the express written consent of the Seller and its Suppliers, or disseminate or otherwise
disclose the Software to third parties. All Software furnished hereunder (whether or not part of firmware), including all copies
thereof, are and shall remain the property of Seller and its Suppliers and are subject to the terms and conditions of this agree-
ment. All rights reserved.
Customer's use of this software shall be deemed to reflect Customer's agreement to abide by the terms and conditions contained
herein. Removal or modification of trademarks, copyright notices, logos, etc., or the use of Software on any Equipment other than
that for which it is intended, or any other material breach of this Agreement, shall automatically terminate this license. If this
Agreement is terminated for breach, Customer shall immediately discontinue use and destroy or return to Seller all licensed soft-
ware and other confidential or proprietary information of Seller. In no event shall Seller or its suppliers or licensors be liable for
any damages whatsoever (including without limitation, damages for loss of business profits, business interruption, loss of busi-
ness information, other pecuniary loss, or consequential damages) arising out of the use of or inability to use the software, even
if Seller has been advised of the possibility of such damages.

Contents
WELCOME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
ABOUT THIS GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
DOCUMENTATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
PHONE FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION AND SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . 2
CLEANING THE 6873I TOUCHSCREEN . . . . . . . . . . . . . . . . . . . . 2
IP PHONE KEYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
KEY PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
KEY DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
DIALPAD KEYS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
E.164 SUPPORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
GETTING STARTED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
PLUGGING IN AND STARTING THE PHONE . . . . . . . . . . . . . . . . . 8
NETWORK CONNECTED/NETWORK DISCONNECTED . . . . . . .10
UI OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
HOME SCREEN . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
LINE SELECTION SCREEN . . . . . . . . . . . . . . . . . . . . . . .15
DETAILED-VIEW CALL SCREEN . . . . . . . . . . . . . . . . . . . .16
MULTI-VIEW CALL SCREEN . . . . . . . . . . . . . . . . . . . . . .18
TOUCHSCREEN UI NAVIGATION . . . . . . . . . . . . . . . . . . . . . . .19
METHODS OF CUSTOMIZING YOUR PHONE . . . . . . . . . . . . . . . 20
PHONE OPTIONS THROUGH THE IP PHONE UI . . . . . . . . . . . . . . .20
SIMPLIFIED OPTIONS LIST . . . . . . . . . . . . . . . . . . . . . .22
USING THE IP PHONE UI . . . . . . . . . . . . . . . . . . . . . . .22
Log Issue Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
PHONE OPTIONS THROUGH THE MITEL WEB UI . . . . . . . . . . . . . .23
USING THE MITEL WEB UI . . . . . . . . . . . . . . . . . . . . . .23

PHONE STATUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
PHONE STATUS THROUGH IP PHONE UI . . . . . . . . . . . . . . . . . .27
FINDING YOUR PHONE’S IP ADDRESS . . . . . . . . . . . . . . . . . . . .29
PHONE STATUS THROUGH THE MITEL WEB UI . . . . . . . . . . . . . . .31
SIP ACCOUNT STATUS . . . . . . . . . . . . . . . . . . . . . . . .31
TIME AND DATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
TIME ZONE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
SET DATE AND TIME . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
BLUETOOTH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
ENABLING AND DISABLING BLUETOOTH FUNCTIONALITY . . . .39
PAIRING A BLUETOOTH HEADSET . . . . . . . . . . . . . . . . . .40
PAIRING A BLUETOOTH HANDSET . . . . . . . . . . . . . . . . .42
UNPAIRING A BLUETOOTH DEVICE . . . . . . . . . . . . . . . . .44
CONNECTING TO A DIFFERENT PAIRED BLUETOOTH DEVICE . . .45
DIRECTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
EXTERNAL SOURCES . . . . . . . . . . . . . . . . . . . . . . . . .48
CREDENTIALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
CALL FORWARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
LOCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
PASSWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
CONFIGURING A USER PASSWORD . . . . . . . . . . . . . . . . .51
PHONE LOCK . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
CONFIGURING LOCK SETTINGS USING THE MITEL WEB UI . . . .54
DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Audio Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . .56
AUDIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
AUDIO MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
HEADSET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
RING TONES AND TONE SETS . . . . . . . . . . . . . . . . . . . .61
DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
HOME SCREEN SETTINGS . . . . . . . . . . . . . . . . . . . . . .66
BRIGHTNESS SETTINGS . . . . . . . . . . . . . . . . . . . . . . . .69
DIALING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
LIVE DIALPAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
SPEED DIAL EDIT . . . . . . . . . . . . . . . . . . . . . . . . . . .70
RESTART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
RESTARTING YOUR PHONE USING THE IP PHONE UI . . . . . . .71
RESTARTING YOUR PHONE USING THE MITEL WEB UI . . . . . .71
EMERGENCY DIAL PLAN . . . . . . . . . . . . . . . . . . . . . . . . . . .72
DEFINING AN EMERGENCY DIAL PLAN USING THE MITEL WEB UI 72
LINE AND CALL APPEARANCES . . . . . . . . . . . . . . . . . . . . . . 74

CONFIGURING SOFTKEYS . . . . . . . . . . . . . . . . . . . . . . . . . 75
STATE-BASED SOFTKEYS . . . . . . . . . . . . . . . . . . . . . . . . . . .79
SOFTKEY DISPLAY BEHAVIOR . . . . . . . . . . . . . . . . . . . . . . . . .80
LINE KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
CONFIGURING A LINE KEY USING THE MITEL WEB UI . . . . . . .82
BLINKING SOFTKEY ICON SUPPORT FOR LINE KEYS . . . . . . . .82
SPEED DIAL KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
SPEED DIAL PREFIX . . . . . . . . . . . . . . . . . . . . . . . . . .83
PRESS-AND-HOLD TO CREATE A SPEED DIAL (APPLICABLE TO SOFTKEYS, DI-
ALPAD KEYS, EXPANSION MODULE KEYS) . . . . . . . . . . . . .83
CREATING A SPEED DIAL KEY USING THE SPEED DIAL EDIT OPTION (APPLI-
CABLE TO SOFTKEYS, DIALPAD KEYS, EXPANSION MODULE KEYS) 85
CREATING A SPEED DIAL SOFTKEY USING THE MITEL WEB UI . .86
CREATING DIALPAD SPEED DIAL KEYS USING THE MITEL WEB UI 87
Press-and-Hold to Edit a Speed Dial . . . . . . . . . . . . . . . .87
DO NOT DISTURB (DND) KEY . . . . . . . . . . . . . . . . . . . . . . . . .88
CONFIGURING A DND KEY USING THE MITEL WEB UI . . . . . . .88
BUSY LAMP FIELD (BLF) KEY . . . . . . . . . . . . . . . . . . . . . . . . .89
BLINKING SOFTKEY ICON SUPPORT FOR BLF KEYS . . . . . . . . .89
CONFIGURING A BLF KEY USING THE MITEL WEB UI . . . . . . .90
BLF/LIST KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
CONFIGURING A BLF/LIST KEY USING THE MITEL WEB UI . . . .91
CONFIGURING XMPP AVATAR . . . . . . . . . . . . . . . . . . . .93
AUTOMATIC CALL DISTRIBUTION (ACD) KEY (FOR SYLANTRO CALL MANAGERS)
93
CONFIGURING AN AUTOMATIC CALL DISTRIBUTION (ACD) KEY USING THE
MITEL WEB UI . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
UTILIZING THE ACD FEATURE USING THE IP PHONE UI . . . . . .94
XML KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
CONFIGURING AN XML KEY USING THE MITEL WEB UI . . . . . .97
ACCESSING THE XML SERVICE USING THE IP PHONE UI . . . . . .97
FLASH KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98
CONFIGURING A FLASH KEY USING THE MITEL WEB UI . . . . . .98
SPRECODE KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98
CONFIGURING A SPRECODE KEY USING THE MITEL WEB UI . . .99
Park/Pickup Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
CONFIGURING PARK/PICKUP KEYS USING THE MITEL WEB UI . 100
UTILIZING THE PARK CALL/PICKUP PARKED CALL FEATURE USING THE IP
PHONE UI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
LAST CALL RETURN KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
CONFIGURING A LAST CALL RETURN KEY USING THE MITEL WEB UI 102
CALL FORWARD KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
CONFIGURING A CALL FORWARD KEY USING THE MITEL WEB UI 103
BLF/XFER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
BLF/XFER KEY REQUIREMENTS AND FUNCTIONALITY . . . . . . 103
CONFIGURING A BLF/XFER KEY USING THE MITEL WEB UI . . . 104

SPEED DIAL/XFER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
SPEED DIAL/XFER KEY REQUIREMENTS AND FUNCTIONALITY . 105
CONFIGURING A SPEED DIAL/XFER KEY USING THE MITEL WEB UI 105
SPEED DIAL/CONF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
CONFIGURING A SPEED DIAL/CONF KEY USING THE MITEL WEB UI 106
SPEED DIAL/MWI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
CONFIGURING A SPEED DIAL/MWI KEY USING THE MITEL WEB UI 108
DIRECTORY KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
CONFIGURING A DIRECTORY KEY USING THE MITEL WEB UI . . 110
CALLERS LIST KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
CONFIGURING A CALLERS LIST KEY USING THE MITEL WEB UI . 111
OUTGOING REDIAL KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
CONFIGURING A OUTGOING REDIAL KEY USING THE MITEL WEB UI 112
CONFERENCE KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
CONFIGURING A CONFERENCE KEY USING THE MITEL WEB UI 113
TRANSFER KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
CONFIGURING A TRANSFER KEY USING THE MITEL WEB UI . . 114
INTERCOM KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
CONFIGURING AN INTERCOM KEY USING THE MITEL WEB UI . 114
PHONE LOCK KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
CONFIGURING A PHONE LOCK KEY . . . . . . . . . . . . . . . . 115
PAGING KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
CONFIGURING A PAGING KEY USING THE MITEL WEB UI . . . . 116
USING THE PAGING KEY . . . . . . . . . . . . . . . . . . . . . . 117
DISCREET RINGING KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
CONFIGURING A DISCREET RINGING KEY . . . . . . . . . . . . . 118
CALL HISTORY KEY . . . . . . . . . . . . . . . . . . . . . . . . . 119
CONFIGURING A CALL HISTORY KEY USING THE MITEL WEB UI 119
EMPTY KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
CONFIGURING AN EMPTY KEY USING THE MITEL WEB UI . . . 120
NONE KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
DELETING A KEY’S FUNCTION USING THE MITEL WEB UI . . . . 121
MAKING CALLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122
DIALING A NUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
PRE-DIALING A NUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . 122
USING HANDSFREE SPEAKERPHONE . . . . . . . . . . . . . . . . . . . 123
USING A HEADSET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
VOLUME CONTROLS FOR THE HEADSET MICROPHONE . . . . . 124
MAKING AND RECEIVING CALLS USING A HEADSET . . . . . . . 124
USING INTERCOM FUNCTIONALITY . . . . . . . . . . . . . . . . . . . . 125
USING THE ICOM KEY . . . . . . . . . . . . . . . . . . . . . . . 125
OUTGOING REDIAL LIST . . . . . . . . . . . . . . . . . . . . . . . . . . 126
ACCESSING THE OUTGOING REDIAL LIST . . . . . . . . . . . . . 127
EDITING ENTRIES IN THE OUTGOING REDIAL LIST . . . . . . . . 128
DELETING ALL ENTRIES IN THE OUTGOING REDIAL LIST . . . . 129

DELETING AN ENTRY IN THE OUTGOING REDIAL LIST . . . . . . 130
COPYING ENTRIES TO THE LOCAL DIRECTORY . . . . . . . . . . 130
MUTE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
RECEIVING CALLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .132
ANSWERING AN INCOMING CALL . . . . . . . . . . . . . . . . . . . . . 132
DEFLECTING AN INCOMING CALL . . . . . . . . . . . . . . . . . . . . . 133
SENDING AN INCOMING CALL TO VOICEMAIL . . . . . . . . . . . . . . 133
HANDLING CALLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135
PLACING A CALL ON HOLD . . . . . . . . . . . . . . . . . . . . . . . . . 135
WHEN ON HOLD . . . . . . . . . . . . . . . . . . . . . . . . . . 135
AUTOMATIC HOLD . . . . . . . . . . . . . . . . . . . . . . . . . 136
RETRIEVING A HELD CALL . . . . . . . . . . . . . . . . . . . . . 136
TRANSFERRING CALLS . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
BLIND TRANSFER . . . . . . . . . . . . . . . . . . . . . . . . . . 136
CONSULTATIVE TRANSFER . . . . . . . . . . . . . . . . . . . . . 136
DIRECT TRANSFER . . . . . . . . . . . . . . . . . . . . . . . . . 137
TRANSFERRING AN EXISTING CALL TO ANOTHER EXISTING CALL 139
TRANSFERRING TO A CONTACT IN THE DIRECTORY . . . . . . . 140
INDICATION OF TRANSFERRED CALLS . . . . . . . . . . . . . . 141
CONFERENCING CALLS . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
LOCAL CONFERENCING . . . . . . . . . . . . . . . . . . . . . . 142
CENTRALIZED CONFERENCING (FOR SYLANTRO AND BROADSOFT CALL
MANAGERS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
ENDING A CONFERENCE AND TRANSFERRING REMAINING PARTIES 148
ENDING CALLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
MANAGING CALLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149
DIRECTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
GENERAL DIRECTORY FUNCTIONS . . . . . . . . . . . . . . . . 149
LOCAL DIRECTORY FEATURES . . . . . . . . . . . . . . . . . . . 155
DOWNLOADING THE LOCAL DIRECTORY TO YOUR PC . . . . . 162
EXTERNAL DIRECTORY SOURCE FEATURES . . . . . . . . . . . . 163
CALLERS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
ACCESSING AND USING THE RECEIVED CALLERS LIST . . . . . . 166
EDITING ENTRIES IN THE RECEIVED CALLERS LIST . . . . . . . . 167
DELETING ENTRIES FROM THE RECEIVED CALLERS LIST . . . . . 168
COPYING ENTRIES TO THE LOCAL DIRECTORY . . . . . . . . . . 170
MISSED CALLS INDICATOR . . . . . . . . . . . . . . . . . . . . . 170
DOWNLOADING THE RECEIVED CALLERS LIST TO YOUR PC . . . 172
DND AND CALL FORWARD . . . . . . . . . . . . . . . . . . . . . . . . . 172
DND CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . 173
CONFIGURING A DND KEY . . . . . . . . . . . . . . . . . . . . . 174
CONFIGURING DND USING THE MITEL WEB UI . . . . . . . . . 174

CONFIGURING DND MODES USING THE IP PHONE UI . . . . . . 175
CALL FORWARD CONFIGURATION . . . . . . . . . . . . . . . . 176
CONFIGURING A CALL FORWARD KEY . . . . . . . . . . . . . . 177
CONFIGURING CALL FORWARD USING THE MITEL WEB UI . . . 177
USING CALL FORWARD THROUGH THE IP PHONE UI . . . . . . 179
ADDITIONAL FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . .183
DISPLAY DTMF DIGITS . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
CONFIGURING DISPLAY OF DTMF DIGITS . . . . . . . . . . . . 183
PLAY CALL WAITING TONE . . . . . . . . . . . . . . . . . . . . . . . . . 184
CONFIGURING CALL WAITING TONE . . . . . . . . . . . . . . . 184
STUTTERED DIAL TONE . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
CONFIGURING STUTTERED DIAL TONE . . . . . . . . . . . . . . 185
XML BEEP SUPPORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
CONFIGURING XML BEEP SUPPORT . . . . . . . . . . . . . . . . 186
STATUS SCROLL DELAY . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
CONFIGURING STATUS SCROLL DELAY . . . . . . . . . . . . . . 187
SWITCH UI FOCUS TO RINGING LINE . . . . . . . . . . . . . . . . . . . 187
CONFIGURING SWITCH FOCUS TO RINGING LINE . . . . . . . . 188
CALL HOLD REMINDER DURING ACTIVE CALLS . . . . . . . . . . . . . . 188
CONFIGURING CALL HOLD REMINDER DURING ACTIVE CALLS . 189
CALL HOLD REMINDER (ON SINGLE HOLD) . . . . . . . . . . . . . . . . 189
CONFIGURING CALL HOLD REMINDER . . . . . . . . . . . . . . 190
CALL WAITING TONE PERIOD . . . . . . . . . . . . . . . . . . . . . . . 190
CONFIGURING CALL WAITING TONE PERIOD . . . . . . . . . . 191
PREFERRED LINE AND PREFERRED LINE TIMEOUT . . . . . . . . . . . . 191
CONFIGURING PREFERRED LINE AND PREFERRED LINE TIMEOUT 193
GOODBYE KEY CANCELS INCOMING CALLS . . . . . . . . . . . . . . . . 193
CONFIGURING GOODBYE KEY TO CANCEL INCOMING CALLS . . 194
MESSAGE WAITING INDICATOR . . . . . . . . . . . . . . . . . . . . . . 194
CONFIGURING MESSAGE WAITING INDICATOR . . . . . . . . . 195
INCOMING INTERCOM CALL FEATURES . . . . . . . . . . . . . . . . . . 195
AUTO-ANSWER/PLAY WARNING TONE . . . . . . . . . . . . . . 195
MICROPHONE MUTE . . . . . . . . . . . . . . . . . . . . . . . . 196
ALLOW BARGE IN . . . . . . . . . . . . . . . . . . . . . . . . . . 196
CONFIGURING INCOMING INTERCOM SETTINGS . . . . . . . . 196
GROUP RTP PAGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
CONFIGURING GROUP RTP PAGING . . . . . . . . . . . . . . . 197
SHARED CALL APPEARANCE (SCA) CALL BRIDGING . . . . . . . . . . . 197
KEYS STATES AND LED/BUTTON BEHAVIOR . . . . . . . . . . . 198
SCA VOICEMAIL INDICATORS . . . . . . . . . . . . . . . . . . . 200
BROADSOFT BROADWORKS EXECUTIVE AND ASSISTANT SERVICES . . 200
FILTER SOFTKEY . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
SPEED DIAL KEY WITH INITIATE CALL FUNCTIONALITY (ASSISTANTS ONLY)
202
EXECUTIVE PHONE FEATURES . . . . . . . . . . . . . . . . . . . 203

ASSISTANT PHONE FEATURES . . . . . . . . . . . . . . . . . . . 204
STAR CODES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
S710 SPEAKER VOLUME CONTROL BEHAVIOR . . . . . . . . . . . . . . 209
OTHER FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
MODEL M680I AND M685I EXPANSION MODULES . . . . . . . . . . .210
USING THE EXPANSION MODULES . . . . . . . . . . . . . . . . . . . . 211
PRESS-AND-HOLD TO CREATE A SPEED DIAL KEY . . . . . . . . 212
SUPPORT FOR MITEL S720 BLUETOOTH SPEAKER PHONE . . . . . . .213
TROUBLESHOOTING SOLUTIONS . . . . . . . . . . . . . . . . . . . . .214
WHY IS MY DISPLAY BLANK? . . . . . . . . . . . . . . . . . . . . . . . . 214
WHY IS MY SPEAKERPHONE NOT WORKING? . . . . . . . . . . . . . . 214
WHY CAN’T I GET A DIAL TONE? . . . . . . . . . . . . . . . . . . . . . . 214
WHY DOESN’T MY PHONE RING? . . . . . . . . . . . . . . . . . . . . . 214
WHY IS THE LIGHT NOT COMING ON WITH A NEW VOICEMAIL MESSAGE?
214
WHY IS MY HANDSET NOT WORKING? . . . . . . . . . . . . . . . . . . 215
HOW DO I FIND THE IP ADDRESS OF MY PHONE? . . . . . . . . . . . . 215
WHY DOES MY PHONE DISPLAY THE NO SERVICE MESSAGE? . . . . . 215
HOW DO I CHANGE MY USER PASSWORD? . . . . . . . . . . . . . . . . 215
WHY DOES MY PHONE DISPLAY BAD ENCRYPTED CONFIG? . . . . . . 215
HOW DO I RESTART THE IP PHONE? . . . . . . . . . . . . . . . . . . . . 215
HOW DO I LOCK MY PHONE? . . . . . . . . . . . . . . . . . . . . . . . 215
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . .217
Exclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Warranty Repair Services . . . . . . . . . . . . . . . . . . . . . . . . . 217
AFTER WARRANTY SERVICE . . . . . . . . . . . . . . . . . . . . . . . . 218
Limited Warranty (Australia Only) . . . . . . . . . . . . . . . . . . . .219
Repair Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Exclusions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Warranty Repair Services . . . . . . . . . . . . . . . . . . . . . . . . . 220
After Warranty Service . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Appendix A - Time Zone Codes . . . . . . . . . . . . . . . . . . . . . .222

1
WELCOME ABOUT THIS GUIDE
WELCOME
The 6873i is a SIP phone that boasts a large high resolution color touchscreen display and delivers
outstanding audio performance designed for power users who demand a lot from their phones.
Supporting today’s high speed networks through dual Gigabit Ethernet ports, the 6873i offers a large 7"
color backlit LCD touchscreen display, 48 programmable top softkeys, 30 programmable context sensi-
tive bottom softkeys, and native USB and Bluetooth headset support. Offering remarkable HD wideband
audio, an enhanced speakerphone, advanced audio processing and a unique audio design, the Mitel
6873i delivers rich and crystal clear handsfree conversations. With its fully customizable hard key layout,
XML capabilities, and a PoE class 3 rating, the 6873i is one of the most advanced SIP desktop phones
available on the market today.
ABOUT THIS GUIDE
This guide explains how to use the basic features of your new 6873i phone. Not all features listed are
available by default. Contact your System or Network Administrator to find out which features and
services are available to you on your system. Your System Administrator has the ability to customize
some features on this phone. For information on more advanced settings and configurations, Administra-
tors should refer to the Mitel SIP IP Phones Administrator Guide.
DOCUMENTATION
•Mitel 6873i SIP IP Phone Quick Reference Guide – Contains call handling instructions, an overview
of the User Interface (UI) and details on UI navigation, as well as information on other important
features. The Quick Reference Guide can be downloaded from http://www.miteldocs.com.
•Mitel 6873i SIP IP Phone Installation Guide – Contains installation and set-up instructions, general
features and functions, and basic options list customization. The Installation Guide can be downloaded
from http://www.miteldocs.com.
•Mitel 6873i SIP IP Phone User Guide – Describes the most commonly used features and functions
for an end user. The User Guide can be downloaded from http://www.miteldocs.com.
•Mitel SIP IP Phones Administrator Guide – Describes how to set up the Mitel SIP IP phones on the
network and contains advanced configuration instructions. The Administrator Guide is intended for the
System Administrator and can be downloaded from http://www.miteldocs.com.
PHONE FEATURES
•7" WVGA (800x480) color TFT capacitive touch LCD
•Built-in-two-port, 10/100/1000 Gigabit Ethernet switch - lets you share a connection with your computer
•USB 2.0 port (500mA maximum)
•48 top and 30 bottom softkeys
•Press-and-hold speeddial key configuration feature
•Supports 2 hard line keys with LEDs (additional line keys programmable through softkeys)

2
WELCOME REQUIREMENTS
•Wideband handset
•Wideband, full-duplex speakerphone for handsfree calls
•USB, Bluetooth headset and Bluetooth cordless handset support
•AC power adapter (sold separately)
•Enhanced busy lamp fields*
•Set paging*
*Availability of feature dependent on your phone system or service provider.
REQUIREMENTS
The 6873i requires the following environment:
•SIP-based IP PBX system or network installed and running with a SIP account created for the 6873i
phone
•Access to a Trithroughl File Transfer Protocol (TFTP), File Transfer Protocol (FTP), Hypertext Transfer
Protocol (HTTP) server, or Hyper Text Transfer Protocol over Secure Sockets Layer (SSL) (HTTPS)
•Ethernet/Fast Ethernet LAN (10/100 Mbps) (Gigabit Ethernet LAN [1000 Mbps] reco mended)
•Category 5/5e straight-through cabling (Category 6 straight-through cabling required for optimum
Gigabit Ethernet performance)
•The USB drive file system is set as FAT32 for the USB to be detected by the phone.
•Power source:
–For Ethernet networks that supply inline power to the phone (IEEE 802.3af or IEEE 802.3at [IEEE
802.3at recommended]) use an Ethernet cable to connect from the phone directly to the network for
power (no 48V AC power adapter required if using Power-over-Ethernet [PoE] or PoE plus)
–For Ethernet networks that DO NOT supply power to the phone:
•Use only the GlobTek Inc. Limited Power Source [LPS] adapter model no. GT-41080-1848 (sold
separately) to connect from the DC power port on the phone to a power source or
•Use a PoE power injector or a PoE switch (PoE plus reco mended)
INSTALLATION AND SETUP
If your System Administrator has not already setup your 6873i phone, please refer to the Mitel 6873i
Installation Guide for basic installation and physical setup information. For more advanced administra-
tion and configuration information, System Administrators should refer to the Mitel SIP IP Phones
Administrator Guide.
CLEANING THE 6873I TOUCHSCREEN
Repeated use of the 6873i touchscreen may lead to a dirty screen. To clean the phone’s screen, Mitel
recommends the use of a super fine cotton cloth, cotton swab, or microfiber lens cloth made of microfiber
suede (preferably one without sewn hems or similar characteristics that would scratch the surface of the
screen). You can use the cloth dry for dusting, polishing and light cleaning, or dampen it (with water only)
to deep clean the surface. If using a damp cloth, make sure to use just a little water on the cloth. Too much

3
WELCOME CLEANING THE 6873I TOUCHSCREEN
moisture can cause damage to your phone that could be permanent. If the cloth is dripping or the surface
shows water spots after wiping, then you are using too much water on the cloth.
Some rules to follow when cleaning your screen include:
•Do not use any sharp objects including your fingernail.
•Do not rub, touch or tap the surface of the screen with sharp or abrasive items such as a ball-point pen
or a screw driver.
•Do not use any type of cleansers including abrasive cleansers.
•Do not use any type of glass cleaner or any cleaner that contains alcohol or ammonia.
•Do not spray any type of cleaner directly on the phone’s screen.
•Do not allow any liquid to run down the surface of the touchscreen and under the bezel.
•If using a damp cloth, disconnect power to the phone before wiping the screen.
NOTE: Use of any type of cleaners, alcohol, ammonia, and/or hard or sharp objects can harm the
touchscreen surface and potentially cause transparent conductive film cracks in the screen.
To clean your 6873i touchscreen:
1. Disconnect power to your phone.
2. Retrieve a soft cloth, such as a microfiber cloth.
3. If necessary, dampen the cloth. For regular cleanings, a dry cloth is usually sufficient. For stubborn
build-up or for periodic deep cleanings, wet the cloth under a faucet and then wring out until it is just
damp.
4. Wipe the screen gently with the cloth making sure to not get any moisture in the sides of the screen.
You can also wipe down the entire phone to remove dirt and grime.
5. Allow your phone to completely dry after you are done cleaning. This should only take a few minutes.
6. Reconnect power to your phone.
NOTE: Keeping your touchscreen clean and free of dirt and fingerprints on a regular basis extends
the life of your phone’s touchscreen.

4
IP PHONE KEYS KEY PANEL
IP PHONE KEYS
KEY PANEL
The following sections describe the various 6873i phone key functions and how they can help you make
and manage your calls and caller information.
KEY DESCRIPTION
The following table describes the keys on the 6873i:
q 6873i Handset i Volume Control
w High Quality
Speakerphone
o Keypad
e Message Waiting Lamp a Callers List Key
r Goodbye Key s Outgoing Redial Key
t Hold Key d Line/Call Appearance
Keys
y Options Key f Speaker/Headset Key
u Mute Key g TFT LCD Touchscreen

5
IP PHONE KEYS KEY DESCRIPTION
KEY DESCRIPTION
Goodbye Key - Ends an active call. The
Goodbye key also exits an open list, such as the
Options List, without saving changes.
Hold Key - Places an active call on hold. To
retrieve a held call, press the Hold key again or
press the Pickup softkey offered on the display.
For more information, see “Placing a Call on
Hold”.
Options Key - Accesses services and options to
customize your phone. Your System
Administrator may have already customized
some of your settings. Check with your System
Administrator before changing any
Administrator-only options.
For more information, see “Phone Options
through the IP Phone UI”.
Mute Key - Mutes the microphone so that your
caller cannot hear you (the light indicator flashes
when the microphone is on mute).
For more information, see “Mute”.
Volume Controls - Adjusts the volume for the
handset, ringer, and handsfree speakerphone.
Callers List Key - Displays a list of your missed,
outgoing, and received calls.
For more information, see “Callers List”.
Outgoing Redial Key - Accesses a list of the last
100 previously dialed numbers. Pressing the
Outgoing Redial key twice redials the last dialed
number.
For more information, see “Outgoing Redial List”
Line/Call Appearance Keys - Connects you to a
line or call. The Mitel 6873i IP phone has two
default Line keys, each with LED indicator lights.
For more information, see “Line and Call
Appearances”.
Speaker/Headset Key - Transfers the active call
to the speaker or headset, allowing handsfree
use of the phone.
For more information, see “Using Handsfree
Speakerphone”.

6
IP PHONE KEYS DIALPAD KEYS
DIALPAD KEYS
The 6873i has a dialpad with digits from 0 through 9, a * key, and a # key. Keys 2 through 9 contain the
letters of the alphabet. The 6873i phone dialpad includes the following:
DIALPAD KEY DESCRIPTION
0 Dials 0
Dials the Operator on a registered phone
1 Dials 1
2 ABC Dials 2
When entering text, this key enters A with one
press, B with two presses, and C with three
presses
3 DEF Dials 3
When entering text, this key enters D with one
press, E with two presses, and F with three
presses
4 GHI Dials 4
When entering text, this key enters G with one
press, H with two presses, and I with three
presses
5 JKL Dials 5
When entering text, this key enters J with one
press, K with two presses, and L with three
presses
6 MNO Dials 6
When entering text, this key enters M with one
press, N with two presses, and O with three
presses
7 PQRS Dials 7
When entering text, this key enters P with one
press, Q with two presses, R with three presses,
and S with four presses.
8 TUV Dials 8
When entering text, this key enters T with one
press, U with two presses, and V with three
presses
9 WXYZ Dials 9
When entering text, this key enters W with one
press, X with two presses, Y with three presses,
and Z with four presses.

7
IP PHONE KEYS E.164 SUPPORT
The * is called the star key. The # is called the number sign, pound key, or hash key, depending on one's
nationality or personal preference. These can be used for special functions such as accessing voicemail.
The star key and pound key functions are dependent on your country’s feature availability. Contact your
System Administrator for more information about available functions using these keys.
These dialpad keys can be used for any of the following on the phone:
•Dial a phone number to make a call (see “Dialing a Number”)
•Enter digits or letters in the IP phone user interface
•Program a speed dial number (see “Speed Dial Key”)
•Press a speed dial key (see “Speed Dial Key”)
•Press the keys associated with a called Interactive Voice Response (IVR) system
E.164 SUPPORT
E.164 is the international telephone numbering plan that ensures each device on the PSTN has a globally
unique number. E.164 numbers are formatted as [+] [country code] [subscriber number including area
code], and can have a maximum of 15 digits.
Users can dial E.164 numbers from 6873i IP phones. The support for inserting the '+' symbol is provided
to users in the following ways:
•Users can insert the '+' symbol by a long-press of the '0' key.
•While using the virtual keyboard, users can long-press the '=' symbol for the '+' symbol to pop up, which
they can select.

8
GETTING STARTED PLUGGING IN AND STARTING THE PHONE
GETTING STARTED
The 6873i must be set up and be configured prior to its first use. This section describes phone behavior
and start up screens you may see when the phone is first plugged in, or when it is restarted.
PLUGGING IN AND STARTING THE PHONE
The 6873i automatically begins the start up sequence as soon as it is connected. The phone goes through
this process the first time you plug in your phone and every time you restart your phone.
The phone displays the following startup screens
The 6873i phone then checks settings and looks for new configuration and firmware updates from a
configuration server. This may take a few moments while the phone downloads the latest updates.

9
GETTING STARTED PLUGGING IN AND STARTING THE PHONE
NOTE: New updates to your phone can be automatically scheduled from the server. This is set up on the
phone system by your System Administrator and should be scheduled during non-business hours or slow
call periods.
WARNING: DO NOT UNPLUG OR REMOVE POWER TO THE PHONE WHILE IT IS CHECKING OR
INSTALLING FIRMWARE AND CONFIGURATION INFORMATION.
If language packs were loaded to your phone by your System Administrator, the following screen displays
during startup.
When the configuration update is complete, the phone displays the following screens and then displays
the Home screen.

10
GETTING STARTED PLUGGING IN AND STARTING THE PHONE
NETWORK CONNECTED/NETWORK DISCONNECTED
If your phone successfully connects to the network the phone will go directly to the Home screen.
If your phone did not successfully connect to the network, the Network Disconnected prompt appears
on the display and the telephone status light turns on.