AudioCodes 420HD User manual

AudioCodes 400HD Series of High Definition IP Phones
HD VoIP 420HD IP Phone
User’s Manual
420HD IP Phone
Version 2.0.0

User's Manual Contents
Table of Contents
1Introducing AudioCodes' 420HD IP Phone ...............................................................9
1.1About AudioCodes' Series of High Definition IP Phones...................................................9
1.2Complete Range of Phones...............................................................................................9
1.3Cutting Edge Voice Quality & HD VoIP .............................................................................9
1.4Interoperability ...................................................................................................................9
1.5Integration with VoIP Mobility ..........................................................................................10
2Setting up the Phone.................................................................................................11
2.1Unpacking........................................................................................................................11
2.2Device Description...........................................................................................................11
2.2.1Front View..........................................................................................................................11
2.2.2Rear View ..........................................................................................................................13
2.3Cabling.............................................................................................................................14
2.4Mounting the Phone.........................................................................................................15
2.4.1Desktop Mounting ..............................................................................................................15
2.4.1.1Routing the Handset Cable ................................................................................15
2.4.2Wall Mounting ....................................................................................................................16
3Getting Started...........................................................................................................17
3.1LCD Screen in Idle State .................................................................................................17
3.2Softkeys ...........................................................................................................................18
3.3Accessing Menus.............................................................................................................19
3.4Entering Numbers, Alphabetical Letters and Symbols ....................................................20
3.5Displayed Messages........................................................................................................22
4Customizing Your Phone..........................................................................................23
4.1Changing the LCD Screen Language..............................................................................23
4.2Selecting Ring Tone ........................................................................................................24
4.3Setting Date and Time .....................................................................................................25
4.4Changing LCD Screen Contrast Level.............................................................................27
4.5Defining the LCD Screen Backlight Timeout ...................................................................28
4.6Selecting Audio Device....................................................................................................29
4.7Adjusting Volume.............................................................................................................30
4.7.1Adjusting Ring Volume ......................................................................................................30
4.7.2Adjusting Tones Volume....................................................................................................30
4.7.3Adjusting Handset Volume ................................................................................................30
4.7.4Adjusting Speakerphone Volume ......................................................................................31
4.7.5Adjusting Headset Volume ................................................................................................31
4.8Enabling Call Waiting.......................................................................................................32
4.9Defining Call Forwarding .................................................................................................33
4.10Managing Your Personal Directory..................................................................................34
4.10.1Accessing the Directory .....................................................................................................34
4.10.2Adding Contacts to the Personal Directory........................................................................34
4.10.3Editing Contact Information ...............................................................................................35
4.10.4Deleting a Contact .............................................................................................................36
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4.10.5Searching for a Contact .....................................................................................................37
4.11Defining a Speed Dial Key...............................................................................................37
4.11.1Assigning a Phone Number to a Key.................................................................................37
4.11.2Editing a Speed Dial Assignment ......................................................................................38
4.11.3Deleting Speed Dials .........................................................................................................39
4.12Locking and Unlocking the Phone ...................................................................................39
4.12.1Locking / Unlocking an Extension Line ..............................................................................40
4.13Changing your Presence Status ......................................................................................41
5Performing Basic Operations...................................................................................43
5.1Using Audio Devices........................................................................................................43
5.2Making Calls ....................................................................................................................43
5.2.1Dialing ................................................................................................................................44
5.2.2Redialing ............................................................................................................................44
5.2.3Dialing a Missed Call .........................................................................................................45
5.3Answering Calls ...............................................................................................................45
5.4Rejecting Incoming Calls .................................................................................................46
5.5Silencing Incoming Calls..................................................................................................46
5.6Ending an Established Call..............................................................................................47
5.7Viewing Missed, Received and Dialed Calls....................................................................48
6Performing Advanced Operations ...........................................................................51
6.1Answering Waiting Calls ..................................................................................................51
6.2Placing Calls On Hold......................................................................................................52
6.3Calling a Contact Listed in the Directory..........................................................................52
6.4Using a Speed Dial Key to Make a Call...........................................................................53
6.5Transferring Calls ............................................................................................................53
6.5.1Attended Transfer ..............................................................................................................53
6.5.2Semi-Attended Transfer.....................................................................................................54
6.5.3Blind Transfer.....................................................................................................................55
6.6Hosting 3‐Way Conference Calls.....................................................................................56
6.7Muting Calls .....................................................................................................................57
6.8Activating Do Not Disturb.................................................................................................57
6.9Retrieving Voice Mail Messages......................................................................................58
6.10Using Two Lines ..............................................................................................................59
6.10.1Choosing a Line .................................................................................................................59
6.10.2Making a Call on a Line .....................................................................................................59
6.10.3Making Two Calls on a Line...............................................................................................60
6.10.4Making Multiple Line Calls .................................................................................................60
6.10.5Toggling Between Multiple-Line Calls................................................................................61
6.10.6Toggling Between Calls on the Same Line........................................................................62
6.10.7Answering Calls .................................................................................................................62
6.10.8Ending Calls.......................................................................................................................62
7Troubleshooting ........................................................................................................63
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User's Manual Contents
List of Figures
Figure 2-1: Front View ......................................................................................................................................12
Figure 2-2: Rear View.......................................................................................................................................13
Figure 2-3: Cabling ...........................................................................................................................................14
Figure 3-1: LCD Screen in Idle State................................................................................................................17
Figure 3-2: Menus.............................................................................................................................................19
Figure 3-3: Alphanumerical Selection...............................................................................................................20
Figure 3-4: Selected Alphanumerical Mode (Abc)............................................................................................20
Figure 3-5: Entering a Symbol such as a Full Stop ..........................................................................................21
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User's Manual 6 Document #: LTRT-11880
List of Tables
Table 2-1: Font View Description .....................................................................................................................12
Table 2-2: Rear View Description.....................................................................................................................13
Table 3-1: LCD Screen in Idle State.................................................................................................................17
Table 3-2: Softkeys...........................................................................................................................................18
Table 3-3: Messages Displayed on LCD Screen Indicating Processes In Progress .......................................22
Table 4-1: Presence Statuses ..........................................................................................................................41
Table 7-1: Troubleshooting...............................................................................................................................63

User's Manual Notices
Notice
This document shows how to use the AudioCodes 420HD IP Phone.
Information contained in this document is believed to be accurate and reliable at the time of printing.
However, due to ongoing product improvements and revisions, AudioCodes cannot guarantee
accuracy of printed material after the Date Published nor can it accept responsibility for errors or
omissions. Updates to this document and other documents can be viewed by registered customers at
http://www.audiocodes.com/downloads.
© Copyright 2012 AudioCodes Ltd. All rights reserved.
This document is subject to change without notice.
Date Published: Oct-22-2012
Trademarks
AudioCodes, AC, AudioCoded, Ardito, CTI2, CTI², CTI Squared, HD VoIP, HD VoIP Sounds
Better, InTouch, IPmedia, Mediant, MediaPack, NetCoder, Netrake, Nuera, Open Solutions
Network, OSN, Stretto, TrunkPack, VMAS, VoicePacketizer, VoIPerfect, VoIPerfectHD, What’s
Inside Matters, Your Gateway To VoIP and 3GX are trademarks or registered trademarks of
AudioCodes Limited. All other products or trademarks are property of their respective owners.
WEEE EU Directive
Pursuant to the WEEE EU Directive, electronic and electrical waste must not be disposed of with
unsorted waste. Please contact your local recycling authority for disposal of this product.
Customer Support
Customer technical support and service are generally provided by AudioCodes’ Distributors,
Partners, and Resellers from whom the product was purchased. For technical support for
products purchased directly from AudioCodes, or for customers subscribed to AudioCodes
Customer Technical Support (ACTS), contact [e-mail].
Abbreviations and Terminology
Each abbreviation, unless widely used, is spelled out in full when first used.
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User's Manual 8 Document #: LTRT-11880
Related Documentation
Document Name
400HD IP Phone Release Notes
420HD IP Phone Administrator’s Manual
420HD IP Phone Quick Guide

User's Manual 1. Introducing AudioCodes' 420HD IP Phone
1 Introducing AudioCodes' 420HD IP Phone
AudioCodes 420HD IP Phone is based on AudioCodes High Definition voice technology,
providing clarity and a rich audio experience in Voice-over-IP (VoIP) calls. The 420HD is a 2-line,
2 concurrent calls per line premium model which includes a large monochrome multi-language
graphic LCD display.
The 420HD IP Phone is a fully-featured telephone that provides voice communication over an IP
network, allowing you to place and receive phone calls, put calls on hold, transfer calls, make
conference calls, etc.
Read this User’s Manual carefully to learn how to operate this product and take advantage of its
multiple features.
1.1 About AudioCodes' Series of High Definition IP Phones
AudioCodes Series of High Definition IP Phones offers a new dimension of voice call quality and
clarity for the IP Telephony market. This new series of IP Phones further expands AudioCodes’
VoIP product offering for the service providers’ hosted services, Enterprise IP telephony and
Enterprise contact centers markets. As a natural addition to the AudioCodes Mobile Clients,
Media Gateway, Media Server & Multi-Service Business Gateway products, the AudioCodes
Series of High Definition IP Phones enable Systems Integrators and end-customers to build end-
to-end solutions that rely on AudioCodes’ technological advantage and proven track record in
providing state-of-the-art products. The AudioCodes Series of High Definition IP Phones meet a
growing demand for High Definition VoIP solutions in end-user phones and terminals, improving
the productivity and efficiency of business communications with new quality standards set by the
High Definition voice technology.
1.2 Complete Range of Phones
The AudioCodes Series of High Definition IP Phones offers three phone models, which are well
suited to the requirements of different types of business users. The 300HD series includes the
310HD which is the 1-line, 2 concurrent calls per line entry level IP Phone with a basic display
and user interface with multi language support. The 320HD is a 4-line, 2 concurrent calls per line
premium model which includes a large Monochrome multi language graphic LCD display. The
400HD newer generation series currently includes the 420HD which is 2-line, 2 concurrent calls
per line model with a Monochrome multi language graphic LCD display. All models support
HDVoIP. The AudioCodes Series IP Phones are available with Power over Ethernet and/or
external power supply.
1.3 Cutting Edge Voice Quality & HD VoIP
Based on AudioCodes’ advanced, robust and field-proven VoIPerfectHD™ software,
AudioCodes’ IP Phones are designed to utilize the most popular wideband coders such as G.722,
G.722.2 (WB-AMR) and Microsoft®Real Time Audio (RTA). Each of these phones features
enhanced proprietary capabilities, such as packet loss concealment, high quality wideband
acoustic echo canceler, and low-delay adaptive jitter buffers to enrich the HDVoIP experience.
1.4 Interoperability
The AudioCodes Series of High Definition IP Phones is widely interoperable withIP-PBXs,
Softswitches and IP Centrex Solutions. As Enterprises and Service Providers continue to seek
open network architectures that enable them to maximize value and reduce costs, AudioCodes’
best-of-breed technology, wide interoperability, and adherence to standards make the
AudioCodes IP Phones a natural selection.
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1.5 Integration with VoIP Mobility
The 300HD and 400HD IP Phones can be combined with AudioCodes mobility solutions to
enable a continuous access of end users to high quality VoIP calling, wherever they are. In a
business setting, AudioCodes MobilityPLUS solution lets employees take advantage of their
Smartphone devices by installing a MobilityPLUS client on the Smartphones and configuring
them as VoIP extensions of the business’ IP-PBX and UC system. In Cloud-based IP-Centrex
environments, AudioCodes VMAS (Voice Mobile Access Solution) enables Service Providers to
offer their end-customers attractive mobile VoIP calling plans and features. The VMAS client can
be installed on existing Smartphones, conduct calls through Wi-Fi or cellular data connections,
and reduce costly cellular voice minutes and roaming charges.

User's Manual 2. Setting up the Phone
2 Setting up the Phone
2.1 Unpacking
When unpacking, ensure that the following items are present and undamaged:
420HD IP Phone / Stand Handset / Cord
Cat 5e Ethernet Cable AC Power Adapter (Optional)
If anything appears to be missing or broken, contact the distributor from whom you purchased the
phone for assistance.
2.2 Device Description
Use the graphics below to identify and familiarize yourself with the device's hardware functions.
2.2.1 Front View
The front view of the phone is shown in Figure 2-1 and described in Table 2-1.
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Figure 2-1: Front View
1
2
3
4
5
15
6
7
14 8
913
12 10
11
Table 2-1: Font View Description
Item # Label/Name Description
1 Ring LED Flashing blue light visually indicates an incoming call.
2 LCD Screen Interactive screen displaying calling information, enabling you to set up
phone features.
3 Softkeys See Section 3.2 on page 18 for details on the four softkeys and the
available functions they offer.
4 Navigation
Control /OK
Press the upper rim to scroll up menus/items in the LCD display screen.
Press its lower rim to scroll down. Press its left or right rim to move the
cursor left or right (when editing a contact number for example). Press the
OK button to select a menu/item/option.
5 VOICE MAIL Retrieves voice mail messages.
6 CONTACTS Press to directly access the Personal directory.
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User's Manual 2. Setting up the Phone
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Item # Label/Name Description
7 MENU Accesses menus (1) Call Log (2) Directory (3) Speed Dial (4) Settings (5)
Status (6) Administration.
8 REDIAL Accesses a list of recently dialed numbers; one can be selected to redial.
9 TRANSFER Transfers a call.
10 HOLD Places an active call on hold.
11 Alphanumerical
Keypad
Keys for entering numbers, alphabetical letters and symbols (e.g., colons)
12 SPEAKER Activates the speakerphone, allowing a hands-free conversation.
13 HEADSET Activates a call using an external headset.
14 MUTE Mutes a call.
15
▲
VOL Increases or decreases the volume of the handset, headset,
speakerphone, ring tone and call progress tones.
VOL
▼
2.2.2 Rear View
The rear view of the phone is shown in the figure below and described in the table below.
Figure 2-2: Rear View
Table 2-2: Rear View Description
# Label Description
Handset jack, i.e., RJ-9 port, to connect the handset.
RJ-45 port to connect to the Ethernet LAN cable for the LAN connection
(uplink - 10/100 Mbps). If you're using Power over Ethernet (PoE), power
to the phone is supplied from the Ethernet cable (draws power from either
a spare line or signal line).
RJ-45 port for connecting the phone to a PC (10/100 Mbps downlink).
12V DC power jack that connects to the AC power adapter.
Headset jack, i.e., RJ-9 port that connects to an external headset.
2
43
1
1
2
3
4
5
5

420HD IP Phone
2.3 Cabling
Here's how you cable your phone.
Figure 2-3: Cabling
4 32
5
Action Description
Connect the short, straight end of the cord to the handset.
Connect the longer, straight end to the jack (RJ-9 port, for the handset) on the phone.
Connect the RJ-45 LAN port to your LAN network (LAN port or LAN switch/router), using a
CAT 5 / 5e Ethernet cable
Connect the RJ-45 PC port to a computer, using a CAT 5 / 5e straight-through Ethernet
cable
Connect the connector tip of the AC power adapter to the phone’s power socket (labeled DC
12V). Connect the two-prong AC adapter directly to the electrical wall outlet. When the
phone powers up, all the LEDs momentarily light up
Connect the RJ-9 headset jack to a headset (optional)
Note: If the LAN to which the phone is connected supports Power over Ethernet
(PoE), no AC adapter is required; the phone receives power from the Ethernet
network.
Prior to connecting power, refer to the Compliancy and Regulatory Information at
www.audiocodes.com/library.
1
1
2
3
4
5
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User's Manual 2. Setting up the Phone
2.4 Mounting the Phone
The phone can be mounted on a:
Desk (see Section 2.4.1 below)
Wall (see Section 2.4.2 on page 16)
2.4.1 Desktop Mounting
This section shows how to place the phone on a desk or flat surface.
¾To mount the phone on a desk or flat surface:
1. Off-hook the handset (if on-hook) and place the phone upside down, i.e., base-up, on your
desktop.
2. On the phone's base, identify outer rails.
3. On the phone's stand, identify outer notches.
4. Invert the stand and align its outer notches with the base's outer rails.
5. Insert the stand's outer notches into the base's outer rails and slide the notches along the
rails until the stand click-locks into the base.
6. Revert the phone and stand it on the desktop.
2.4.1.1 Routing the Handset Cable
The phone features a groove for routing the handset cable.
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2.4.2 Wall Mounting
This section shows you how to mount the phone on a wall or wall plate.
¾To mount the phone on a wall:
1. Attach the stand of the phone for the purpose of a wall mounting:
a. Detach the base.
To detach the phone's stand, push this button
b. Attach it again as you did for a desktop mounting (see Section 2.4.1 on page 15) only
now make sure that it's flatly aligned to lie flush against the wall, i.e., slide the middle
rails of the phone stand onto the phone base's inner notches.
2. Connect the AC power adapter, LAN and PC cords.
3. In the wall, drill two horizontal holes at a distance of 3 15/16 inches (100 mm) from one
another, in line with the template.
4. Insert two masonry anchors into the holes if necessary.
5. Thread two screws (not supplied) into the two masonary anchors; ensure that the heads
extend sufficiently (about 3/16 inch or 5 mm from the wall) for the phone stand's keyhole
slots to hang on.
6. Hang the phone stand's keyhole slots on these screws.
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User's Manual 3. Getting Started
3 Getting Started
Your phone features an LCD screen, providing an intuitive, menu-driven user interface for
configuring the phone and viewing call information.
This section shows how to use the phone’s LCD screen.
3.1 LCD Screen in Idle State
The figure below shows the phone’s LCD screen in idle state. Use the table below as reference.
Figure 3-1: LCD Screen in Idle State
3
1
4
2
Table 3-1: LCD Screen in Idle State
Reference Description
1 Extension lines (won't be displayed unless configured by system administrator)
2 Softkeys (to activate, press the key corresponding to it located below the LCD screen)
3 Time
4 Date
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3.2 Softkeys
The table below describes softkeys displayed in the LCD screen according to menu level
currently accessed. To use a softkey, press the key located on the device directly below it.
Table 3-2: Softkeys
Softkey Description
Missed Displays missed calls.
Forward Defines and activates call forwarding.
DnD Displayed in idle state. Activates the Do not Disturb feature.
Displayed in idle state. Also displayed (for example) after lifting the handset and after
selecting New Call, Conf or Trans (see below). Opens the phone's Directory (enables
selecting a contact in the Corporate directory or Personal directory).
Select Selects a menu or menu option. Identical to the OK key (either can be used).
A/a/l Enables choosing letters or digits (1). The letters option can be all caps (ABC), all small
letters (abc) or first letter capitalized (Abc).
Save Saves settings.
Cancel Cancels the currently initiated call or configuration.
Dial Displayed after a number is keyed, a directory contact is selected, or a logged call is
selected. Dials the phone number / directory contact / logged call.
Clear Displayed for example after keying the first digit of a phone number. Deletes from right to left
each time the digit or character is pressed. To delete all digits/characters, keep pressed until
all are deleted.
New Call Displayed after a number is dialed and the call is answered on the other side. Also shown
after a call is answered. Enables keying a number or URL and calling them.
Conf Displayed after a number is dialed and the call is answered on the other side. Also shown
after a call is answered. Enables keying a number or URL to include in the current call.
Transf. Displayed after a number is dialed and the call is answered on the other side. Also shown
after a call is answered. Enables keying a number or URL to transfer the call to.
URL Displayed after lifting the handset, after selecting New Call, Conf or Trans, and after keying
the key. Enables calling a URL.
Call Log Displayed after lifting the handset. Also displayed after New Call, Conf or Trans is selected.
Presents menu items All Calls, Missed Calls, Received Calls, Dialed Calls.
Detail Displayed (for example) after selecting a Call Log submenu: All Calls, Missed Calls,
Received Calls or Dialed Calls. Displays the submenu's settings.
End Displayed for example after pressing the Dial softkey and when the called party lifts the
handset/accepts the call. Also displayed after accepting an incoming call or lifting the handset
to answer. Ends the call.
Back Displayed for example after pressing the MENU key as well as after selecting any of the
submenu's under it. Returns you to the previous screen state or menu level.
Start Displayed after pressing Forward > selecting an extension line > selecting when to forward.
Activates call forwarding.
Edit Displayed after a menu/submenu item to be edited is selected. Enables editing the selected
item.
Delete Displayed after pressing the MENU key > selecting Call Log softkey > selecting submenu
A
ll
Calls, Missed Calls, Received Calls or Dialed Calls). Before deleting the submenu, a
warning prompt is displayed.
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User's Manual 3. Getting Started
3.3 Accessing Menus
Menus are used to access information and to configure the phone. For example, Personal
directory under Directory is used to add contacts; Missed Calls under Call Log is used to view
missed calls and to reply to them; Network Status under Status is used to view the phone's
dynamic IP address.
The figure below shows the phone's menus and submenus.
Figure 3-2: Menus
Note:
•The Administration menu is intended for system administrators only. It is
password protected. For information regarding this menu, refer to the
420HD IP Phone Administrator’s Manual.
•If you define a second extension line, the Call Log menu displays menu
items per extension.
¾To access the menus:
Press the MENU key located on the device.
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¾To navigate to menus and items:
Press the navigating control's upper and lower rim -OR- press the listed item's number on
the keypad, e.g., press 3 to navigate to Speed Dial.
¾To select a menu or menu item:
Press the Select softkey or press the navigation control's OK button.
¾To cancel and move to a previous menu level:
Press the Back softkey.
3.4 Entering Numbers, Alphabetical Letters and Symbols
The phone’s alphanumerical keypad allows you to enter alphabetical letters, numbers and
symbols. Pressing the A/a/1 softkey successively or pressing the # pound key successively
enables you to navigate to and select alphabet mode, number mode or symbol mode. To define a
contact name you need alphabet mode. To define an IP address you need to revert from number
mode to symbol mode : and back to number, etc.
If you press the keys on the keypad when the LCD screen is in idle state, the numbers printed on
the keys are dialed for a new key.
¾To enter a letter of the alphabet or a number (alphanumerical selection):
1. Press the A/a/1 softkey or # key successively to navigate to and select the mode required:
Figure 3-3: Alphanumerical Selection
2. Choose either:
•abc =lower case letters
•ABC = upper-case letters
•Abc = first-letter upper case, the rest lower case
•123 =numerical mode (i.e., numbers)
After selecting, the LCD screen displays your selection.
Figure 3-4: Selected Alphanumerical Mode (Abc)
3. To enter a letter, press the required alphanumerical key on the keypad. Successive presses
on the same key moves you to that key's next letter. Pressing another key enters the first
letter indicated on it.
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