Mitel 5055 User manual

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 commitment 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.
Mitel Networks is a trademark of Mitel Networks Corporation.
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Other product names mentioned in this document may be trademarks of their respective
companies and are hereby acknowledged.
For Firmware Revision 1.3.1.06

Table of Contents
- i -
TABLE OF CONTENTS
ABOUT YOUR SIP PHONE ...................................................................................... 1
Welcome.............................................................................................................................. 1
About This User Guide.................................................................................................................... 1
The 5055 SIP Phone ...........................................................................................................2
Elements of the SIP Phone ............................................................................................................. 3
Features of the SIP Phone.............................................................................................................. 4
Accessories for the SIP Phone ....................................................................................................... 5
Features specific to the 3050 ICP ................................................................................................... 6
Important Notes ................................................................................................................... 6
Firmware Upgrade........................................................................................................................... 6
Passwords....................................................................................................................................... 6
Tips for Your Comfort and Safety.................................................................................................... 7
5055 SIP PHONE FEATURES .................................................................................. 8
Accessing the SIP Phone Features ..................................................................................... 8
The SIP Phone Menu Interface....................................................................................................... 8
The Web Configuration Tool ........................................................................................................... 8
Using Profiles..................................................................................................................... 11
Logging In and Out........................................................................................................................ 11
Activating a Profile......................................................................................................................... 13
Temporary Registration................................................................................................................. 13
Making and Answering Calls .............................................................................................14
Making Calls.................................................................................................................................. 15
Answering Calls............................................................................................................................. 17
Switching between Handset, Headset and Handsfree Modes...................................................... 17
Using the SIP Phone Features .......................................................................................... 18
Advisory Messages ....................................................................................................................... 18
Call Forward .................................................................................................................................. 19
Call Transfer.................................................................................................................................. 21
Call Waiting ................................................................................................................................... 22
Calling List Logs ............................................................................................................................ 22
Conference Call (3-Way)............................................................................................................... 23
Display Contrast ............................................................................................................................ 23
Display Name ................................................................................................................................ 24
Do Not Disturb............................................................................................................................... 24
Hold ............................................................................................................................................... 25
Muting a Call ................................................................................................................................. 25
Password....................................................................................................................................... 26
Personal Keys ............................................................................................................................... 26
Phone Book................................................................................................................................... 27

5055 SIP Phone User Guide (Rev. A)
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Redial ............................................................................................................................................ 28
Ringer Pitch and Volume .............................................................................................................. 28
Speaker Volume (Handset, Headset and Handsfree)................................................................... 29
Speed Dial..................................................................................................................................... 29
Time and Date............................................................................................................................... 30
Web Dialing ................................................................................................................................... 32
ADMINISTRATOR TOOLS ..................................................................................... 33
Changing Passwords......................................................................................................... 33
Setting Up User Profiles ....................................................................................................34
Viewing a Profile’s User Name...................................................................................................... 34
Creating a User Profile.................................................................................................................. 34
Modifying a User Profile ................................................................................................................ 35
Deleting a User Profile .................................................................................................................. 35
Creating/Modifying a SIP Account ..................................................................................... 36
Modifying the Network Configuration................................................................................. 36
Viewing the IP and MAC Addresses ............................................................................................. 36
Modifying Network Configurations ................................................................................................36
Upgrading the Software of the SIP Phone......................................................................... 38
Viewing the Software Version ....................................................................................................... 38
Upgrading the Software................................................................................................................. 38
Additional Settings .............................................................................................................39
Configuration Files ........................................................................................................................ 39
Hot Line ......................................................................................................................................... 40
Media Configuration ...................................................................................................................... 41
Resetting to Factory Defaults........................................................................................................ 41
APPENDIX A—SIP PHONE INTERFACE .............................................................. 42
SIP Phone Menu Interface................................................................................................. 42
Menu Key Commands ....................................................................................................... 43
APPENDIX B—WEB CONFIGURATION TOOL..................................................... 45
Accessing the Web Configuration Tool.............................................................................. 45
Home Page........................................................................................................................ 46
Feature Configuration Page............................................................................................... 47
Dial by Phone Book Page.................................................................................................. 50
Dial by URL Page .............................................................................................................. 51
Program Key Config Page ................................................................................................. 51
Distinctive Ring Page......................................................................................................... 52
Network Configuration Page.............................................................................................. 52

Table of Contents
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User Configuration Page ...................................................................................................56
SIP Configuration Page ..................................................................................................... 58
Media Configuration Page ................................................................................................. 61
Security Configuration Page .............................................................................................. 62
Ethernet Configuration Page .............................................................................................63
Protocol Config Page......................................................................................................... 64
Configuration Upload/Download Page............................................................................... 64
Registration Status Page ................................................................................................... 65
Firmware Upgrade ............................................................................................................. 66
APPENDIX C—CONFIGURATION FILES .............................................................. 67
Example of a Generic Configuration File ........................................................................... 67
Example of a Specific Configuration File ........................................................................... 72
APPENDIX D WORKING WITH FIREWALLS ........................................................ 79
GLOSSARY............................................................................................................. 81
Useful URLs and Personal Information .............................................................................82
SIP URL Syntax.................................................................................................................82

5055 SIP Phone User Guide (Rev. A)
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About Your SIP Phone
- 1 -
About Your SIP Phone
Welcome
The Mitel Networks 5055 SIP Phone connects you to other SIP Phones or to phones situated
on the PSTN using SIP to PSTN gateways. You can dial by URL, IP Address, User Name, or
User Number.
When combined with the Mitel Networks 3050 Integrated Communications Platform (ICP) you
gain the convenience of rapid station to station two or three digit dialing, an automatic
attendant, individual virtual answering machines and a host of new Internet gateway features.
The 5055 SIP Phone is a multi-line set, and can have up to three user profiles, each with its
own settings.
About This User Guide
This User Guide contains information on configuring and using your 5055 SIP Phone, and is
organized as follows:
•About Your SIP Phone (this section): basic information on the SIP Phone and its
features.
•5055 SIP Phone Features: information on how to configure and use your SIP Phone.:
information on setting up user profiles, and modifying network and SIP account
configurations.
•Appendix A—SIP Phone Interface: overview of the SIP Phone Menu Interface that can
be used to program your SIP Phone.
•Appendix B—Web Configuration Tool: overview of the web-based Configuration Tool
that can be used to program your SIP Phone as well as to make calls.
•Appendix C—Configuration Files: examples of generic and specific configuration files.
•Appendix D Working with Firewalls
The 5055 SIP phone can be configured to work behind Network Address Translation (NAT)
firewalls which are not SIP aware by enabling the SIP configuration Bypass Firewall NAT
feature and configuring the firewall correctly. To do this:
1. Locate the documentation that came with your NAT firewall and look for instructions on how to configure
a Demilitarized Zone (DMZ) server. You must configure the 5055 SIP phone to function as a DMZ
server to the firewall.
2. Use the 5055 SIP phone configuration web page to:
A. Set Bypass Firewall NAT on.
B. Select the type of firewall IP address (static or dynamically assigned)
C. Enter the IP address or Dynamic IP address URL WAN IP address field.

5055 SIP Phone User Guide (Rev. A)
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•Glossary: definition of terms and acronyms found in this User Guide.
Document Conventions
•Text on the SIP Phone display, or on a page of the Web Configuration Tool is shown in
double quotes (for example, “CALLING LISTS?”).
•SIP Phone keys and commands on the SIP Phone display are shown in bold (for
example, Menu).
•Sections within this document are shown in italics (for example, Using the SIP Phone
Features).
•Links in a web page are shown as underlined text (for example, User Configuration).
•▼and ▲represent the Up and Down Arrow keys on the SIP Phone (located just above
the keypad).
•and represent navigating softkeys on the display.
The 5055 SIP Phone
Figure 1 5055 SIP Phone

About Your SIP Phone
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Elements of the SIP Phone
Display Screen
Provides a high-resolution, back-lit viewing area for ease of use. In default mode (default
display), it shows the name of the active user (see Figure 1 above). In Menu mode, it shows
prompts and information on the features.
Message Waiting/Ringing Indicator Lamp
Flashes when you have an incoming call or a new message in your voice mailbox. Is on
(steady) while the SIP Phone reboots.
Softkeys
Select a command or choice listed on the bottom line of the display screen. These
commands and choices change dynamically depending on the different modes of operation.
Fixed Function Keys
Give you access to the following telephone functions:
•Menu (blue): Provides access to the telephone's menus.
•Trans/Conf: Initiates a call transfer or establishes a 3-party conference call.
•Redial: Redials the last number, name or address dialed.
•Message: Provides access to your voice mailbox.
•Hold (red): Puts the current call on hold.
•Cancel: During a calls, ends the call. When programming the SIP Phone, cancels an
input and returns to the previous menu level.
•Speaker: Initiates a handsfree call, switches between handset and handsfree mode, or
disconnects a call while in handsfree mode.
•Microphone: Toggles the microphone off and on. In handsfree, a red light indicates that
the microphone is ON (your party hears you). In handset and headset mode, the
microphone key acts like a Mute key, and a red light indicates that the microphone is
OFF (your party can’t hear you).
Arrow Keys
Adjust the volume of the handset, headset, or speaker, and of the ringer volume. When
entering letters, changes character input from upper or lower case. Are also used to change
the display contrast, and to navigate through some menus when programming the SIP
Phone. In this User Guide, the arrow keys are represented by ▼and ▲.
Fixed Feature Keys
Give you access to the following telephone features:
•Calling Lists: Provides immediate access to your Phone Book, Answered Calls Log,
Missed Calls Log, and Outgoing Calls Log.
•Advisory Message: Allows you to turn your Advisory Message on or off.
•Headset: Allows you to enable and disable headset operation.

5055 SIP Phone User Guide (Rev. A)
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Keypad
When making a call, used to enter the number, name or IP address you want to dial. When
programming the SIP Phone, used to enter information. Depending on the context, the
keypad lets you enter only numbers, or numbers, letters and some special characters.
Line Keys
Allow you to initiate, receive, and manage calls by using the four pre-assigned line keys. The
default Line key is Line 1. If a line is busy, subsequent calls are received on the next
available Line key (Line 2, Line 3, then Line 4). The Line keys are not assigned to a specific
directory number or address (multi-line operation).
¡Personal Keys
Provide one-touch access to programmed Speed Dial numbers.
Features of the SIP Phone
User Profiles
The 5055 SIP Phone can have up to three user profiles, including the default user profile.
Each user profile has its user name and password, and can be personalized to the user’s
preferences. See Using Profiles on page 11 for more information.
Administrative Mode
Some settings (network information, SIP Service Provider information, etc.) can only be
modified by the system administrator, using the Administrator user name and password.
Accessing the SIP Phone’s Features
You can personalize/change settings for your SIP Phone from the SIP Phone itself (SIP
Phone Menu Interface) and from any personal computer connected to the Internet, using a
web browser (Web Configuration Tool). You can make calls using your SIP Phone or the
Web Configuration Tool. See 5055 SIP Phone Features on page 8 for more information.
Entering Numbers and Letters Using the SIP Phone Keypad
Depending on the context, the keypad lets you enter only numbers, or numbers, letters and
some special characters.
When entering letters and special characters, you rapidly press the appropriate number key
several times until the desired character is displayed. Letters correspond to those on the
keypad, and characters to the table below. A flashing cursor indicates the position of the
character you are entering; it will advance if you press a different key on the keypad, or wait
about one second.
To enter a letter in uppercase, press the ▲key before entering the letter. Press the ▼key to
return to lowercase mode. To delete the last entered character, press the <−−− softkey.

About Your SIP Phone
- 5 -
Table 1 Alphanumeric Character Entry
Press
Dial Pad
Key Once Twice 3 Times 4 Times 5 Times 6 Times 7 Times 8 Times 9 Times
11space ? ! →|
22 a b c
33 d e f
44 g h i
55 j k l
66 m n o
77 p q r s
88 t u v
99 w x y z
00 + & % $ ¥ “
** . = : / ; , – _
## @ ( ) [ ] < >
Accessories for the SIP Phone
The 5055 SIP Phone supports the following accessories:
Headsets
Mitel Networks has qualified two Plantronics, Inc. headsets for use with the 5055 SIP Phone’s
dedicated headset port (Mitel part numbers 9132-800-500-NA and 9132-800-501-NA). These
headsets are available in North America only.
The 5055 SIP Phone has a dedicated headset port (identified by the icon) at the back to
connect an approved headset. An external amplifier is not needed.
Conference Units
Mitel Networks supports two conference units for use with the 5055 SIP Phone (Mitel
Networks 5305 Conference Unit and Mitel Networks 5310 Conference Unit ).
Figure 2 Mitel Networks Conference Unit

5055 SIP Phone User Guide (Rev. A)
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Features specific to the 3050 ICP
The 3050 ICP adds features to your 5055 SIP phone that provide greater ease of use within a
small office or retail establishment, and opportunities to improve how you interact with your
customers.
Convenience
•Mitel networks SIP phones connected to 3050 ICPs share a fast two or three-digit dialing
for station to station calls. Check with your 3050 ICP installer to learn which dialing
scheme has been activated for your system.
Customer Interaction
•The 3050 ICP has an automatic attendant that can be used to direct your callers to
specific individuals or functions in your organization. For instance, if someone in your
office usually handles inquires about customer orders, then your automatic attendant can
be programmed to direct callers to this individual.
•The 3050 ICP lets you to assign voicemail accounts to each user for those occasions
when they cannot answer the phone in person. Users record their personalized greeting
using the 5055 SIP phone. When a caller leaves a message, it is delivered to the user’s
email inbox for later retrieval using their PC or a phone.
Important Notes
Firmware Upgrade
This guide is provided primarily for purchasers of the Mitel Networks 3050 ICP who have
upgraded their SIP phones to use revision 1.3.1.06. If you are not planning on connecting
your 5055 SIP phone to the 3050 ICP, then we recommend that you retain your current
version of firmware.
Passwords
Passwords are used to give you secure access to your user profile, and in the case of
phones attached to the 3050 ICP, a second user password provides secure access to voice
messaging.
User Profile
When you first receive your 5055 SIP Phone, it has default user names and passwords for
the Administrator and the default user profile. You should change these passwords as soon
as possible to prevent unauthorized changes to your SIP Phone.
Table 2 Default User Names and Passwords
Default User Name Default Password
Administration admin 5055
Default User Profile Your 3050 user name icp3050
Only the Administrator can change the Administrator password. The Administrator can also
change the password of all other users.
Note: The Administrator default user name cannot be changed.

About Your SIP Phone
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Voice Messaging
Your system administrator or installer needs to set up voice messaging accounts, before you
can use them. Check with them to learn if your voice messaging user name and password
have created.
There is a worksheet on the last page of this manual, which provides a convenient place for
your system administrator to record URLs and usernames.
It is a good practice to change your voice-messaging password from time to time to maintain
your privacy. To do so, point your web browser to the above-mentioned URL and follow the
instructions.
Tips for Your Comfort and Safety
Don’t Cradle the Handset
Prolonged use of the handset can lead to neck, shoulder, or back discomfort, especially if you
cradle the handset between your ear and shoulder. If you use your 5055 SIP Phone a lot, you
may find it more comfortable to use a headset.
Protect your Hearing
Your 5055 SIP Phone has a control for adjusting the volume of the handset receiver or
headset. Because continuous exposure to loud sounds can contribute to hearing loss, keep
the volume at a moderate level.
Adjust the Phone for Easiest Viewing
•Press the tilt-release paddle on the telephone base.
•Tilt your telephone to the desired angle.
•Release the tilt-release paddle.
Figure 3 Tilt-Release Paddle

5055 SIP Phone User Guide (Rev. A)
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5055 SIP Phone Features
Once your SIP Phone is installed and configured (see the 5055 SIP Phone Installation Guide
for more details), you can start using your phone.
This section contains information on using and personalizing your 5055 SIP Phone, and is
organized as follows:
•Accessing the SIP Phone Features: information on how to use the Web Configuration
Tool and the SIP Phone Menu Interface to access the features of your SIP Phone.
•Using Profiles: information on user profiles, and on how to log in, log out, and activate
your user profile.
•Making and Answering Calls: information on the basic telephony features of your SIP
Phone.
•Using the SIP Phone Features: information on using the features of your SIP Phone.
Accessing the SIP Phone Features
You can make calls and personalize your SIP Phone from the SIP Phone itself (SIP Phone
Menu Interface) or using a computer connected to the same network as your SIP Phone
(Web Configuration Tool).
The SIP Phone Menu Interface
Most features can be directly accessed using the keys on your SIP Phone. For other
features, you must use the SIP Phone Menu Interface, which is accessed using the Menu
key (see Appendix A—SIP Phone Interface on page 42 for an overview of these features).
To scroll backwards or forwards through the main menu of the SIP Phone Menu Interface,
press the << or >> softkeys. To scroll backwards or forwards through the sub-menus, press
the or softkeys. To go back a menu level, press the Cancel key. To exit the SIP Phone
Menu Interface, press the Menu key, or go off-hook (lift handset).
In this document, procedures using the SIP Phone Menu Interface are identified by a small
phone icon ( ).
Appendix A—SIP Phone Interface on page 42 lists all the menus and submenus available
through the Sip Phone Menu Interface.
The Web Configuration Tool
You can personalize/change settings for your SIP Phone from any computer connected to the
Internet using a web browser (Netscape Navigator 4 or Internet Explorer 4 (minimum), or any
other equivalent browser). You can also make calls using the Web Configuration Tool.
Note: If your network is protected by a firewall, you normally will not be able to access your
SIP phone from outside the firewall.

5055 SIP Phone Features
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In this document, procedures using the Web Configuration Tool are identified by a small
computer icon ( ).
Appendix B—Web Configuration Tool on page 45 shows all the pages of the Web
Configuration Tool, and the functions for each page.
Accessing the Web Configuration Tool
To access the Web Configuration Tool:
1. Get the SIP Phone’s IP address:
•Press the Menu key.
•Press the Line 1 key on the SIP Phone. The top line of the display shows the IP
address of the SIP Phone.
•Note the IP address of the SIP Phone, and press the Menu key to return to the
default display.
2. Launch your computer browser.
3. Enter your SIP Phone's IP address in your browser's URL or Address field. The login
screen for the Web Configuration Tool appears.
Figure 4 Web Configuration Tool Login Screen
192.168.xx.xx
4. Enter your user profile user name and password in the appropriate fields.
5. Click the OK button. The home page of the Web Configuration Tool is loaded.

5055 SIP Phone User Guide (Rev. A)
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Figure 5 Web Configuration Tool Home Page
Refreshing Web Configuration Tool Pages
If you need to refresh a page after changing settings using the Web Configuration Tool (for
example, you set your advisory message to On using the Web Configuration Tool, then
turned it back off using the Advisory Message key on the SIP Phone), go to another page in
the Web Configuration Tool, then come back to the page you wanted to refresh.
Do not use the Refresh or Reload button of your browser to refresh a Web Configuration
Tool page after changing settings using the Web Configuration Tool. Doing so will just
reapply the change you just did (and reboot your SIP phone, if you clicked a Save and
Reboot button).

5055 SIP Phone Features
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Using Profiles
To access all the features the 5055 SIP Phone has to offer, you need a user profile and must
be registered with a SIP Service Provider (you can use the SIP Phone without a user profile,
but will not be able to use all its features). A user profile is usually created and registered by
the system administrator.
Once you have a user profile, you can personalize the following:
•your user profile information (password, display name),
•your user profile feature settings (Personal keys, phone book, call answer settings, etc.).
Your SIP Phone supports up to three user profiles, including the default user profile. The
default user profile is always logged in, and cannot be deleted.
When you log in the SIP Phone, you are automatically registered with your SIP Service
Provider, and can receive calls on the SIP Phone. When you activate your user profile, the
SIP Phone uses your user profile preferences (Speed Dial keys, etc.), and you can use the
Web Configuration Tool to make calls or change your user profile settings. More than one
user can be logged in at the same time, but only one user profile can be active at a time.
Note: Only users who have a user profile defined on a SIP Phone can log in to that SIP
Phone.
You can also temporarily register with your SIP Service Provider on a SIP Phone that does
not have your user profile. While you are temporarily registered on that phone. you can make
and receive calls with the SIP Phone, but cannot use the Web Configuration Tool.
Logging In and Out
Like a personal computer, the 5055 SIP Phone allows different users to log in and access
their personal settings. Incoming calls addressed to the logged-in user's name, SIP URL or
Number will be delivered to that SIP Phone. So, for example, if you need to do some work in
the lab but still want to answer incoming calls that you would normally answer at your desk,
you can log in to the lab's 5055 SIP Phone.
Note: Logging in on your SIP Phone automatically registers you with your SIP Service
Provider (assuming you have a SIP Service Provider, and a user profile defined on
the SIP Phone). If you have a SIP Service Provider, and for any reason the
registration process fails, “*NO REG*” appears on your display.
Logging In
1. Press the Menu key.
2. Press the >> softkey. “USERS?” is displayed.
3. Press the OK softkey. “1.LOGIN?” is displayed.
4. Press the OK softkey.
5. Enter your user profile user name, and press the Submit softkey.

5055 SIP Phone User Guide (Rev. A)
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6. Enter your user profile password, and press the Submit softkey (if your SIP Service
Provider does not require a password, enter any character, and delete it using the <−−−
softkey before pressing the Submit softkey).
•If you made a mistake while entering your user name or password, “LOGIN
UNSUCCESSFUL” is displayed. Press the Retry softkey to return to step 4, or the
Cancel softkey to return to step 3.
7. “ACTIVATE PROFILE?” is displayed. To log in and activate your user profile, press the
Yes softkey. To log in without activating your user profile, press the No softkey.
8. “SET LOGIN EXPIRY?” is displayed.
•If you don’t want a login expiry time, press the No softkey, and continue with step 10.
•If you want to set your user profile to automatically be logged out (de-registered) after
a given period, press the Yes softkey and continue with the next step.
9. “LOGIN EXPIRY (HR)” is displayed.
•To enter a value in hours, enter the value using the keypad, and press the Submit
softkey.
•To enter a value in minutes, press the Minute softkey, enter the value using the
keypad, and press the Submit softkey.
•To enter a value in days, press the Days softkey, enter the value using the keypad,
and press the Submit softkey.
10.Once you are logged in, “LOGIN SUCCESSFUL” is displayed. Press the OK softkey,
then the Menu key to return to the default display.
Logging Out
If you have an account with a SIP Service Provider, logging out of the SIP Phone
automatically de-registers you with your SIP Service Provider.
1. Press the Menu key.
2. Press the >> softkey. “USERS?” is displayed.
3. Press the OK softkey. “1.LOGIN?” is displayed.
4. Press the softkey. “2.LOGOUT?” is displayed. Press the OK softkey.
5. Enter your user profile user name, and press the Submit softkey.
6. Enter you user profile password, and press the Submit softkey (if your SIP Service
Provider does not require a password, enter any character, and delete it using the <−−−
softkey before pressing the Submit softkey).
7. Your user name is displayed. Press the LogOut softkey.
8. “LOGOUT CONFIRMED” is displayed. Press the OK softkey, then the Menu key to
return to the default display.

5055 SIP Phone Features
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Activating a Profile
When you activate your user profile, the SIP Phone uses your preferences (Speed Dial keys,
Display Name, etc.), and you can access the Web Configuration Tool to make calls or
change your user profile settings.
Note: To activate your user profile, you must already be logged in the SIP Phone.
1. Press the Menu key.
2. Press the >> softkey. “USERS?” is displayed.
3. Press the OK softkey.
4. Press the softkey until “3.ACTIVATE PROFILE?” is displayed. Press the OK softkey.
5. The name of the active user profile is displayed. Press the Change softkey to activate a
different user profile.
6. Enter your user profile user name, and press the Submit softkey.
7. Enter you user profile password, and press the Submit softkey (if your SIP Service
Provider does not require a password, enter any character, and delete it using the <−−−
softkey before pressing the Submit softkey).
8. Your user name is displayed. Press the Yes softkey to activate your profile.
9. “PROFILE ACTIVATED” is displayed. Press the OK softkey, then the Menu key to return
to the default display.
Temporary Registration
Temporary registration tells your SIP Service Provider that you can temporarily receive calls
at that phone.
To temporarily register on a SIP Phone, you need the following information from your SIP
Service Provider:
•Registration user name and password
•SIP Service Provider server IP address
•Contact (To) address (typically “username@SIPServiceProvider”)
•Registration method
Registering on the SIP Phone
1. Get the IP address of the SIP Phone to which you are registering:
•Press the Menu key.
•Press the Line 1 key on the SIP Phone. The top line of the display shows the IP
address of the SIP Phone.
•Note the IP address of the SIP Phone, and press the Menu key to return to the
default display.
2. Press the Menu key.
3. Press the >> softkey. “USERS?” is displayed.
4. Press the OK softkey.
5. Press the softkey until “6.REGISTRATION?” is displayed. Press the OK softkey.

5055 SIP Phone User Guide (Rev. A)
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6. Enter your SIP Registration user name, and press the Submit softkey.
7. Enter your SIP Registration password, and press the Submit softkey (if your SIP Service
Provider does not require a password, enter any character, and delete it using the <−−−
softkey before pressing the Submit softkey).
8. Enter the SIP Phone’s IP address, and press the Submit softkey.
9. Enter your SIP Service Provider server address, and press the Submit softkey.
10.Enter your contact (To) address, and press the Submit softkey.
11.Select the registration method by pressing the appropriate softkey:
•None: no registration authentication.
•Basic: authentication without encryption.
•Digest: authentication with encryption.
12.The display shows the registration method chosen. Press the Submit softkey to confirm
your choice, or the Cancel softkey to choose another registration method (step 11).
13.Enter the registration duration (in hours), and press the Submit softkey (after that
duration, you will automatically be de-registered).
14.The display shows “REGISTER NOW”. Press the Confirm softkey to register, or the
Cancel softkey to change your registration duration (step 13).
When registration is complete, the display shows “REGISTRATION SUCCESSFUL”.
Making and Answering Calls
This section shows you how to make and receive calls with the SIP Phone. Only basic call
making procedures are shown (that is, calls made using the keypad). For information on
other call making features see Using the SIP Phone Features on page 17.
Your SIP Phone can be used in any of the three following modes:
•Handset mode: this is when you are using the handset to talk and listen to your party.
•Headset mode: this is when you have a headset connected to your SIP Phone, and you
use it to talk and listen to your party. Headset mode is activated by pressing the Headset
key (you can have a headset connected to your SIP Phone and still use the handset to
make your calls).
•Handsfree mode: this is when you are using the SIP Phone’s handsfree speaker to talk
and listen to your party. Handsfree mode is activated by pressing the Speaker key.
This section shows how to make and receive call in any of the three modes, as well as how to
change from one mode to another. In the rest of the document, instructions are given for the
handset mode only, for clarity’s sake.