AudioCodes 420HD User manual

AudioCodes 400HD Series of High Definition IP Phones
HD VoIP 420HD IP Phone
User’s Manual
420HD IP Phone for Microsoft®Skype™ for Business
Version 2.0.13

User's Manual Contents
Version 2.0.13 3 420HD IP Phone for Microsoft Skype for Business
Table of Contents
1Introducing the 420HD IP Phone................................................................................9
1.1 About AudioCodes' Series of High Definition IP Phones...................................................9
1.2 Cutting Edge Voice Quality & HD VoIP .............................................................................9
2Setting 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 Mounting the Phone on a Desktop ....................................................................................15
2.4.1.1 Routing the Handset Cable................................................................................15
2.4.2 Mounting the Phone on a Wall...........................................................................................16
3Getting Started...........................................................................................................17
3.1 Getting Acquainted with the LCD.....................................................................................17
3.2 Softkeys...........................................................................................................................18
3.3 Navigating the Phone's Menu..........................................................................................19
3.4 Displayed Messages........................................................................................................20
4Signing In...................................................................................................................21
4.1 Switching from Letters to Numbers/Symbols...................................................................22
4.2 Signing Out......................................................................................................................24
4.2.1 Signing out if the 'Sign out' Softkey is Removed from the LCD.........................................24
5Customizing the Phone.............................................................................................27
5.1 Changing the LCD Language..........................................................................................27
5.2 Selecting Ring Tone ........................................................................................................28
5.3 Enabling Call Waiting.......................................................................................................29
5.4 Managing Simultaneous Incoming Calls..........................................................................29
5.4.1 Configuring Busy on Busy .................................................................................................29
5.5 Defining Call Forwarding .................................................................................................30
5.6 Setting Date and Time.....................................................................................................31
5.7 Changing LCD Contrast Level.........................................................................................33
5.8 Defining LCD Backlight Timeout......................................................................................34
5.9 Selecting an Answering Device.......................................................................................35
5.10 Defining Location.............................................................................................................35
5.11 Defining an Outbound Proxy............................................................................................36
5.12 Adjusting Volume.............................................................................................................37
5.12.1 Adjusting Ring Volume ......................................................................................................37
5.12.2 Adjusting Tones Volume....................................................................................................37
5.12.3 Adjusting Handset Volume ................................................................................................38
5.12.4 Adjusting Speaker Volume ................................................................................................38
5.12.5 Adjusting Headset Volume ................................................................................................38
5.13 Managing Your Personal Directory..................................................................................39
5.13.1 Accessing the Directory.....................................................................................................39

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5.13.2 Adding Contacts to the Personal Directory........................................................................39
5.13.3 Editing Contact Information ...............................................................................................40
5.13.4 Deleting a Contact .............................................................................................................41
5.13.5 Searching for a Contact.....................................................................................................42
5.14 Searching for a Contact in the Corporate Directory using T9..........................................43
5.14.1 Changing from T9 to A/a/1.................................................................................................43
5.15 Defining a Speed Dial......................................................................................................44
5.15.1 Defining a Phone Key as a Speed Dial..............................................................................44
5.15.2 Editing a Speed Dial..........................................................................................................45
5.15.3 Deleting Speed Dials .........................................................................................................45
5.16 Defining Phone Keys as Paging Dials.............................................................................46
5.17 Changing your Presence Status......................................................................................47
6Performing Basic Operations...................................................................................49
6.1 Using Audio Devices........................................................................................................49
6.2 Making Calls....................................................................................................................49
6.2.1 Dialing................................................................................................................................50
6.2.2 Redialing............................................................................................................................50
6.2.3 Dialing a Missed Call .........................................................................................................51
6.3 Answering Calls...............................................................................................................51
6.4 Rejecting Incoming Calls.................................................................................................52
6.5 Silencing Incoming Calls..................................................................................................52
6.6 Ending an Established Call..............................................................................................52
6.7 Viewing Missed, Received and Dialed Calls....................................................................53
7Performing Advanced Operations ...........................................................................55
7.1 Answering Waiting Calls..................................................................................................55
7.2 Placing a Call On Hold.....................................................................................................56
7.3 Calling a Contact Listed in the Directory..........................................................................56
7.4 Using a Speed Dial to Place a Call..................................................................................56
7.5 Transferring Calls ............................................................................................................57
7.5.1 Performing a Consultative Transfer...................................................................................57
7.5.1.1 Performing a Consultative Transfer using Softkeys Only...................................57
7.5.2 Performing a Blind Transfer...............................................................................................58
7.6 Parking a Call ..................................................................................................................59
7.7 Configuring Group Call Pickup (GCP).............................................................................59
7.8 Hosting 3-Way Conference Calls.....................................................................................60
7.9 Muting Calls.....................................................................................................................60
7.10 Paging..............................................................................................................................61
7.10.1 Performing Outgoing Paging Calls ....................................................................................61
7.10.2 Receiving Incoming Paging Calls......................................................................................61
7.11 Setting up Better Together over Ethernet........................................................................63
7.11.1 Installing the BToE PC Application....................................................................................63
7.11.2 Making Sure BToE is Correctly Installed...........................................................................70
7.11.3 Configuring the BToE TCP Port.........................................................................................70
7.11.4 Pairing the BToE PC Application with the IP Phone..........................................................71
7.11.4.1 Generating a Pair Code......................................................................................71
7.11.4.2 Connecting the IP Phone with the BToE PC Application...................................72
7.11.5 Connecting the Skype for Windows Client with the IP Phone...........................................75
7.11.6 Making Sure IP Phone/ Skype for Windows Client are Paired..........................................75
7.11.6.1 Making Sure Skype for Windows Client is Paired..............................................75

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7.11.6.2 Making Sure the IP Phone is Paired..................................................................76
7.12 Using BToE Functions.....................................................................................................77
7.12.1 Signing In...........................................................................................................................77
7.12.2 Making a Call (Click-to-Dial) ..............................................................................................78
7.12.3 Making a Conference Call .................................................................................................78
7.12.4 Answering a Call................................................................................................................79
7.12.5 Transferring a Call.............................................................................................................80
7.13 Retrieving Voice Mail Messages......................................................................................81
8Troubleshooting........................................................................................................83

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List of Figures
Figure 2-1: Front View......................................................................................................................................12
Figure 2-2: Rear View.......................................................................................................................................13
Figure 2-3: Cabling...........................................................................................................................................14
Figure 3-1: LCD in Idle State............................................................................................................................17
Figure 3-2: Menu ..............................................................................................................................................19
Figure 4-1: Entering Letters of the Alphabet ....................................................................................................22
Figure 4-2: Entering a Symbol (e.g., a dot) ......................................................................................................23
Figure 4-3: Reverting to Letters (e.g., abc) ......................................................................................................23
Figure 4-4: Login...............................................................................................................................................24
Figure 4-5: Web Interface – Home Page..........................................................................................................25
Figure 4-6: Sign-in – Content Blocked..............................................................................................................25
Figure 4-7: Sign-in – Windows Security Prompt...............................................................................................26
Figure 4-8: Windows Security Prompt..............................................................................................................26
Figure 4-9: Sign-out..........................................................................................................................................26
Figure 7-1: InstallShield Wizard – Preparing to Install .....................................................................................63
Figure 7-2: Welcome to the InstallShield Wizard .............................................................................................64
Figure 7-3: License Agreement........................................................................................................................64
Figure 7-4: License Agreement........................................................................................................................65
Figure 7-5: Destination Folder..........................................................................................................................65
Figure 7-6: Change Current Destination Folder...............................................................................................66
Figure 7-7: Ready to Install ..............................................................................................................................66
Figure 7-8: Installing AudioCodes Better2Gether.............................................................................................67
Figure 7-9: InstallShielf Wizard Completed......................................................................................................67
Figure 7-10: AudioCodes Icon in Taskbar........................................................................................................68
Figure 7-11: Control Panel>Programs>AudioCodes Better2Gether................................................................68
Figure 7-12: Computer Management > Services and Applications..................................................................69
Figure 7-13: Device Manager > AudioCodes B2GoE USB Driver ...................................................................69
Figure 7-14: Popup Menu.................................................................................................................................70
Figure 7-15: About AC BToE............................................................................................................................70
Figure 7-16: TCP Port.......................................................................................................................................70
Figure 7-17: AC BToE TCP Port ......................................................................................................................71
Figure 7-18: Popup Menu.................................................................................................................................72
Figure 7-19: Phone Pairing...............................................................................................................................72
Figure 7-20: AC BToE Failed Indication...........................................................................................................72
Figure 7-21: AC BToE is Connected Indication................................................................................................72
Figure 7-22: Popup Menu: 'Disconnect' Enabled, 'Phone Pairing' Disabled....................................................73
Figure 7-23: BToE Disconnected .....................................................................................................................73
Figure 7-24: Popup Menu: BToE Disconnected...............................................................................................73
Figure 7-25: Start > Programs > AudioCodes > BToE Controller....................................................................74
Figure 7-26: Skype for Windows Sign-in Request Prompt...............................................................................75
List of Tables
Table 2-1: Font View Description .....................................................................................................................12
Table 2-2: Rear View Description.....................................................................................................................13
Table 3-1: LCD in Idle State.............................................................................................................................17
Table 3-2: Softkeys...........................................................................................................................................18
Table 3-3: Messages Displayed in the LCD Indicating Processes In Progress...............................................20
Table 5-1: Time Zones......................................................................................................................................32
Table 5-2: Presence Statuses..........................................................................................................................47
Table 8-1: Troubleshooting...............................................................................................................................83

User's Manual Notices
Version 2.0.13 7 420HD IP Phone for Microsoft Skype for Business
Notice
This document shows how to use the AudioCodes 420HD IP Phone for Microsoft Skype for Business.
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 2015 AudioCodes Ltd. All rights reserved.
This document is subject to change without notice.
Date Published: December-10-2015
Trademarks
AudioCodes, AC, HD VoIP, HD VoIP Sounds Better, Ipmedia, Mediant, MediaPack, What’s Inside
Matters, OSN, SmartTAP, VMAS, VoIPerfect, VoIPerfectHD, Your Gateway To VoIP, 3GX,
VocaNOM and CloudBond 365 are trademarks or registered trademarks of AudioCodes Limited
All other products or trademarks are property of their respective owners. Product specifications
are subject to change without notice.
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 services are provided by AudioCodes or by an authorized
AudioCodes Service Partner. For more information on how to buy technical support for
AudioCodes products and for contact information, please visit our Web site at
www.audiocodes.com/support.
Abbreviations and Terminology
Each abbreviation, unless widely used, is spelled out in full when first used.
Documentation Feedback
AudioCodes continually strives to produce high quality documentation. If you have any comments
(suggestions or errors) regarding this document, please fill out the Documentation Feedback form
on our Web site at http://www.audiocodes.com/downloads. Your valuable feedback is highly
appreciated.

420HD IP Phone for Microsoft Skype for Business
User's Manual 8 Document #: LTRT-11898
Related Documentation
Document Name
400HD Series IP Phone for Microsoft Skype for Business Release Notes
400HD Series IP Phone for Microsoft Skype for Business Administrator’s Manual
420HD IP Phone for Microsoft Skype for Business Quick Guide
400HD Series IP Phones for Skype for Windows Hosting Partner (LHPv2) Environment Configuration Note

User's Manual 1. Introducing the 420HD IP Phone
Version 2.0.13 9 420HD IP Phone for Microsoft Skype for Business
1 Introducing the 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 1-line
2 concurrent calls per line premium model which includes a large monochrome multi-language
graphic liquid crystal display (LCD).
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 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. The phones
feature 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.

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User's Manual 2. Setting up the Phone
Version 2.0.13 11 420HD IP Phone for Microsoft Skype for Business
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
Table 2-1: Font View Description
Item # Label/Name Description
1 Ring LED Flashing blue light indicates an incoming call.
2 LCD 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. 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 and Corporate directory.
7
MENU
Accesses menus (1) Call Log (2) Directory (3) Speed Dial (4) Settings (5)
Status (6) Administration.
1
2
3
4
5
6
7
8
9
13
14
15
16
11
10
17
12

User's Manual 2. Setting up the Phone
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Item # Label/Name Description
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 speaker, allowing a hands-free conversation.
13
Microphone
Allows talking and listening. IT managers can disable it if required.
14
HEADSET
Activates a call using an external headset.
15
MUTE
Mutes a call.
16
▲VOL
Increases or decreases the volume of the handset, headset, speaker, ring
tone and call progress tones.
▼VOL
17 x Cancel an action, such as dialing a number, after beginning it.
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
4
3
1
1
2
3
4
5
5

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2.3 Cabling
This section shows how to cable your phone.
Figure 2-3: Cabling
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 (labelled 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
2
3
4
5
1
2
3
4
5

User's Manual 2. Setting up the Phone
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2.4 Mounting the Phone
The phone can be mounted on a:
n
Desk (see Section 2.4.1 below)
n
Wall (see Section 2.4.2 on page 16)
See also https://www.youtube.com/watch?v=oGe9STB9lFE to assemble the base stand.
2.4.1 Mounting the Phone on a Desktop
This section shows how to place the phone on a desk or flat surface.
ØTo 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 Mounting the Phone on a Wall
This section shows you how to mount the phone on a wall or wall plate.
ØTo 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.

User's Manual 3. Getting Started
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3 Getting Started
This section gets you started with the phone. The phone features an LCD, providing an intuitive,
menu-driven user interface for configuring the device and viewing call information.
Before using the LCD, you must sign in (see Section 4on page 21).
3.1 Getting Acquainted with the LCD
This section gets you acquainted with the LCD.
The figure below shows the LCD in idle state.
Figure 3-1: LCD in Idle State
Reference:
Table 3-1: LCD in Idle State
Reference Description
1 Displayed Name (configured by your system administrator); see the Administrator's
Manual.
2 Shows presence status (Available, Busy, Do not disturb, Away, or Be right back).
See Section 5.17 on page 47 for details.
3 Softkeys; to activate, press the key on the device, below the LCD, corresponding to the
softkey. See Table 3-2 for softkey descriptions.
4 Day, Date and Time (automatically retrieved from the Network Time Protocol (NTP) server,
enabled by your system administrator).
1
2
4
3

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3.2 Softkeys
The table below shows the softkeys displayed in LCD menus. To use a softkey, press the key
located directly below it on the device.
Table 3-2: Softkeys
Softkey Description
Missed Displays missed calls.
Forward Defines and activates call forwarding.
Status Displayed in idle state. Lets you set presence status: Available, Busy, Do not disturb, Away,
Be right back
Sign in
/Sign out
Sign in is displayed in the idle screen if you haven't signed in yet.
Sign out
is displayed after pressing the
Status
softkey – after signing in.
Opens the phone's Directory. Lets you select a contact in the Corporate directory or
Personal directory. Displayed in idle state. Also displayed (for example) after lifting the
handset and selecting >New Call / Trans, or Conf.
Select
Selects a menu or menu option. Identical to the
OK
key. Either can be used.
BToE
[After pressing the MENU key] Shows a pairing code to set up Better Together over Ethernet.
A/a/1
Enables switching between input modes: abc, Abc, ABC or numbers.
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 entering a digit of a phone number. Deletes from right to left.
Displayed after a number is dialed and the call is answered on the other side.
Also shown after
you answer a call. Accesses the New Call/Trans. Screen in which you can enter a number or
URL.
Conf Displayed after a number is dialed and the call is answered on the other side.
Also shown after
you answer a call. Accesses the CONFERENCE WITH screen in which you can
key a number
or URL.
URL Displayed after lifting the handset, after pressing and selecting New Call / Trans,after
pressing Conf, and after pressing . Lets you call a URL.
Displayed after lifting the handset. Also displayed after New Call /Trans or Conf is selected.
Presents menu items All Calls, Missed Calls, Received Calls and Dialed Calls.
Detail Displayed (for example) after selecting a call listed under All Calls, Missed Calls, Received
Calls
or
Dialed Calls
. Displays call details: Time, Date, etc.
End Displayed for example after pressing the Dial softkey and the called party lifts the handset.
Also displayed after answering an incoming call. Ends the call.
Back Displayed for example after pressing the MENU key. Returns you to the previous screen or
menu level.
Start Displayed after pressing Forward > selecting an extension line > selecting when to forward.
Activates call forwarding.
Edit Displayed after you select a contact (for example) to be edited.
Delete Displayed (for example) after pressing the MENU key > selecting Call Log. Lets you delete
items under All Calls, Missed Calls, Received Calls or Dialed Calls. Before deleting, a
warning prompt is displayed.
BXfer
Displayed during a call. Lets you transfer the call without consultation (Blind Transfer).
Silent Displayed when the phone rings on an incoming call. Lets you silence the ring.

User's Manual 3. Getting Started
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3.3 Navigating the Phone's Menu
You can configure the phone and access information using the menu. You can select
n
Personal directory under Directory to add contacts
n
Missed Calls under Call Log to view missed calls and reply to them
n
Network Status under Status to view the phone's IP address.
The figure below shows the menu structure.
Figure 3-2: Menu
Note: Administration is intended for system administrators only. It is password protected.
See the Administrator’s Manual for details.

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ØTo access the phone's menu:
n
Press the MENU key located on the device.
ØTo navigate to menu items:
n
Press the navigation control's lower rim -OR- press the menu item's number, e.g., press 3to
navigate to Speed Dial.
ØTo select a menu or menu item:
n
Press the Select softkey or press the navigation control's OK button.
ØTo cancel and move to a previous menu level:
n
Press the Back softkey.
3.4 Displayed Messages
Messages displayed in the LCD indicating processes in progress include:
Table 3-3: Messages Displayed in the LCD Indicating Processes In Progress
Message Description
Initializing Initializing
Discovering LLDP Discovering VLAN using Link Layer Discovery Protocol (LLDP)
Discovering CDP Discovering VLAN using Cisco Discovery Protocol (CDP) )
Acquiring IP Acquiring an IP address from a DHCP server
Initializing Network Initializing the network
Signing in Signing in to the Skype for Windows server
Signing in...Contacting time server Get the time from the NTP server
Discovering Lync server Auto discovering the Skype for Windows server on the network
Registering Registering to a SIP proxy server (after booting up the phone)
Downloading Firmware File Downloading a firmware file
Upgrading Firmware Upgrading the phone’s firmware
Signing out Signing out of the Skype for Windows server