Yealink Yealink SIP-T28P User manual

About This Guide
Thank you for choosing this Enterprise IP Phone which is especially designed for power
users in the office environment. It features fashion and sleek design, abundant
telephony applications, broad interoperability with the popular 3rd party VoIP products,
fulfilling the VoIP deployment needs from enterprise and ITSP.
In this User Guide, you will find everything you need to quickly use your new phone. Be
sure to verify with your system administrator that your network is prepared for
configuring your IP phone. As well, be sure to read the Parts List and Regulatory Notices
sections in this guide before you set up and use the phone.
Declaration of Conformity
Hereby, it’s declared that this phone is in conformity with the essential
requirements and other relevant provisions of the CE, FCC.
CE Mark Warning
This is a class B device, in a domestic environment; this product may cause radio
interference, in which case the user may be required to take adequate measures.
WEEE Warning
To avoid the potential effects on the environment and human health as
a result of the presence of hazardous substances in electrical and
electronic equipment, end users of electrical and electronic equipment
should understand the meaning of the crossed-out wheeled bin symbol.
Do not dispose of WEEE as unsorted municipal waste and have to collect
such WEEE separately.

Tables of Contents
Getting Started.................................................................................- 1 -
Packing List ............................................................................................................................... - 1 -
Assembling the Phone................................................................................................................ - 2 -
Configuration and Registration..................................................................................................-4-
Configuring via Web Page ................................................................................................. - 4 -
Configuring via keypad...................................................................................................... - 6 -
Overview ..........................................................................................- 7 -
Keypad Instruction..................................................................................................................... - 7 -
LED Instruction.......................................................................................................................... - 9 -
Icon Instruction .......................................................................................................................... - 9 -
User Interface........................................................................................................................... - 10 -
Customizing Your Phone...............................................................- 12 -
General Settings ....................................................................................................................... - 12 -
Phone Status..................................................................................................................... - 12 -
Language.......................................................................................................................... - 12 -
Time and Date .................................................................................................................. - 13 -
Keypad Lock .................................................................................................................... - 14 -
Audio Settings.......................................................................................................................... - 15 -
Volume ............................................................................................................................. - 15 -
Ring Tones ....................................................................................................................... - 16 -
Codec Selection................................................................................................................ - 17 -
Contact Management ............................................................................................................... - 18 -
Edit/Add/Delete Contact .................................................................................................. - 18 -
Import/Export Contact list................................................................................................ - 19 -
Other Settings........................................................................................................................... - 20 -
Logo Customization......................................................................................................... - 20 -
Dial Plan........................................................................................................................... - 20 -
Dial Now.......................................................................................................................... - 21 -
Block Out ......................................................................................................................... - 22 -
Using the Basic Call Functions.....................................................- 23 -
Making a call............................................................................................................................ - 23 -
Call Devices ..................................................................................................................... - 23 -
Call Methods.................................................................................................................... - 23 -
Answering a call....................................................................................................................... - 23 -
Answering an incoming call............................................................................................. - 23 -

Denying an incoming call ................................................................................................ - 24 -
DND................................................................................................................................. - 24 -
Call Forward .................................................................................................................... - 24 -
During an Active Call .............................................................................................................. - 25 -
Mute ................................................................................................................................. - 25 -
Call Hold.......................................................................................................................... - 25 -
Call Waiting ..................................................................................................................... - 26 -
Call Transfer..................................................................................................................... - 26 -
3-way Conference ............................................................................................................ - 27 -
Message.................................................................................................................................... - 27 -
Voicemail ......................................................................................................................... - 27 -
SMS.................................................................................................................................. - 28 -
Using the Advanced Phone Functions..........................................- 30 -
Account Setting........................................................................................................................ - 30 -
Network Setting ....................................................................................................................... - 31 -
Maintenance Tasks ................................................................................................................... - 32 -
Administrator Mode......................................................................................................... - 32 -
Administrator/User Password .......................................................................................... - 32 -
Reboot .............................................................................................................................. - 33 -
Reset to Factory ............................................................................................................... - 33 -
Firmware Update.............................................................................................................. - 34 -
System Log Export........................................................................................................... - 35 -
Programmable Key Configuration ........................................................................................... - 35 -
SIP Trunk ......................................................................................................................... - 35 -
BLF .................................................................................................................................. - 36 -
Intercom ........................................................................................................................... - 36 -
Direct Pickup.................................................................................................................... - 37 -
Group Pickup ................................................................................................................... - 37 -
Conference ....................................................................................................................... - 37 -
Speed Dial........................................................................................................................ - 38 -
Hold.................................................................................................................................. - 38 -
Transfer ............................................................................................................................ - 38 -
Call Return ....................................................................................................................... - 38 -
Voicemail ......................................................................................................................... - 39 -
Group Listening ............................................................................................................... - 39 -
Custom ............................................................................................................................. - 39 -
Tone Settings............................................................................................................................ - 40 -
Trouble Shooting ...........................................................................- 41 -

Enterprise IP Phone Getting Started
- 1 -
Getting Started
Packing List
The following components are included in your package:
zEnterprise IP Phone
zPhone Stand
zPower Adapter

Enterprise IP Phone Getting Started
- 2 -
zHandset & Handset Core
zEthernet Cable
zQuick Installation Guide & Quick Reference
Check this list before installation to ensure that you have received each item. If you are
missing any items, contact your IP phone reseller.
Assembling the Phone
This section introduce how to assemble the phone with the components in the packing
list：
zAttach the stand;
zConnect Handset and Headset;
zConnect Network and Power.

Enterprise IP Phone Getting Started
- 3 -
1) Attach the Stand, as shown below:
2) Connect Handset and Headset, as shown below:
Note:
Headset is not provided in the packing list. Please contact your distributor for more
information.
3) Connect Network and Power
There are two ways for network and power source connections. You can either connect
the phone to the AC Power directly using the power adapter or to a PoE compliant
switch or hub. Your system administrator will advise you on which one to use.

Enterprise IP Phone Getting Started
- 4 -
Note:
1. If inline power is provided, do not install AC adapter. Make sure the Ethernet cable
and switch/hub is PoE compliant.
2. The Internet Port can be also connected to Hub/Switch/IP PBX or other internet
devices.
The phone can also share the network connection with other network devices such as
PC. Connect the phone’s PC port and computer’s Network Port together using an
Ethernet cable, shown as below:
Configuration and Registration
If you are administrator, you need to do some simple configuration to make the phone
work. If not, please contact your internet administrator or service provider for more
details.
Configuring via Web Page
Press OK button on the keypad of the phone to enter the status page and find out the
IP address of IP phone. Enter it (for example http://192.168.3.35) into the address bar
of web browser. The default login name and password are admin/admin.
Note:
Please locate your PC in the same network segment of IP phone [phone].X) to
access the web configuration page. Please consult your system administrator for help.

Enterprise IP Phone Getting Started
- 5 -
Network Settings
Choose Network->Internet Port.
DHCP: By default the phone attempts to contact a DHCP Server in your network in
order to obtain its valid network settings, e.g. IP address, sub mask, gateway, DNS
server, etc.
Static IP Address: If your phone cannot contact a DHCP Server for any reason, you
need to enter the network settings manually via Static IP Address. Please contact your
internet administrator for more details.
PPPoE: If you are using the xDSL Modem, you can connect your phone to the internet
via PPPoE mode. Please contact your ISP for the User Name and Password for internet
access.
Note:
Using the wrong network parameters may result in inaccessibility of your phone and
may also have an impact on your network performance. Please contact your network
administrator.
Account Settings
The phone attempts to register to the SIP server using the account/registrar data
provided by the automatic or manual initialization.
Choose Account, you will find the following parameters:
Field Description
Register Status It shows the resister status of the phone.
Line Active You can choose on/off to enable/disable the account respectively.
Label It is shown on the LCD for users to identify the account.
Display Name It is shown as Caller ID when making a phone call.
Register Name It is authenticated ID for authentication, provided by ISP.
Account It is account for register, provided by ISP.
Password It is provided by ISP for registration.
SIP Proxy Server for registration, provided by ISP.
When you have finished the Network and Account Setting configuration, the Register
Status Icons will show in the idle screen:
Registered successfully
Register failed
Registering
Note:
Should the IP PBX (SIP registrar) require an authentication, you will be prompted to
enter the correct password. Make sure you are using the appropriate input method or
enter the password via the web user interface.

Enterprise IP Phone Getting Started
- 6 -
Configuring via keypad
Network Settings: Press Menu->Settings->Advanced Setting->Network->WAN Port
Option/LAN Port Option/VLAN Option to enter the internet relating configuration page.
Account Settings: Press Menu->Settings->Advanced Setting->Accounts->Enter to
configure the account settings.
You can refer to the above “Configuring via Web Page” for the parameter details.