Yealink Yealink SIP-T20P 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 3 party VoIP products,
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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 Packing List section 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...................................................................................................... - 5 -
Overview ..........................................................................................- 6 -
Keypad Instruction..................................................................................................................... - 6 -
LED Instruction.......................................................................................................................... - 7 -
Icon Instruction.......................................................................................................................... - 8 -
User Interface............................................................................................................................. - 8 -
Customizing Your Phone...............................................................- 10 -
General Settings....................................................................................................................... - 10 -
Phone Status..................................................................................................................... - 10 -
Language.......................................................................................................................... - 10 -
Time and Date...................................................................................................................- 11 -
Keypad Lock.................................................................................................................... - 12 -
Audio Settings.......................................................................................................................... - 12 -
Volume ............................................................................................................................. - 12 -
Ring Tones ....................................................................................................................... - 13 -
Codec Selection................................................................................................................ - 14 -
Contact Management ............................................................................................................... - 15 -
Edit/Add/Delete Contact.................................................................................................. - 15 -
Import/Export Contact list................................................................................................ - 15 -
Other Settings........................................................................................................................... - 16 -
Dial Plan........................................................................................................................... - 16 -
Dial Now.......................................................................................................................... - 17 -
Block Out......................................................................................................................... - 18 -
Using the Basic Call Functions.....................................................- 19 -
Making a call............................................................................................................................ - 19 -
Call Devices..................................................................................................................... - 19 -
Call Methods.................................................................................................................... - 19 -
Answering a call....................................................................................................................... - 19 -
Answering an incoming call............................................................................................. - 19 -
Denying an incoming call ................................................................................................ - 20 -

Call Forward .................................................................................................................... - 20 -
During an Active Call .............................................................................................................. - 20 -
Mute................................................................................................................................. - 20 -
Call Hold.......................................................................................................................... - 20 -
Call Waiting ..................................................................................................................... - 21 -
Call Transfer..................................................................................................................... - 21 -
3-way Conference............................................................................................................ - 22 -
Voicemail ......................................................................................................................... - 22 -
Using the Advanced Phone Functions..........................................- 24 -
Account Setting........................................................................................................................ - 24 -
TLS .................................................................................................................................. - 24 -
Network Setting ....................................................................................................................... - 25 -
PC Port Setting................................................................................................................. - 25 -
VLAN Setting.................................................................................................................. - 26 -
HTTPS ............................................................................................................................. - 27 -
Maintenance Tasks................................................................................................................... - 27 -
Administrator Mode......................................................................................................... - 27 -
Administrator/User Password .......................................................................................... - 28 -
Reboot.............................................................................................................................. - 28 -
Reset to Factory ............................................................................................................... - 28 -
Firmware Update.............................................................................................................. - 29 -
Decryption........................................................................................................................ - 30 -
System Log Export........................................................................................................... - 31 -
Tone Settings............................................................................................................................ - 31 -
Trouble Shooting ...........................................................................- 33 -

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

EnterpriseIP Phone GettingStarted
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.
- 2 -

EnterpriseIP Phone GettingStarted
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.
- 3 -

EnterpriseIP Phone GettingStarted
Note:
1. If inline power is provided, do not install AC adapter. Make sure the Ethernet cable
and switch/hub are 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 with 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://192.168.3.28) into the address bar
of web browser. The default login name and password are both “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.
Network Settings
Choose Network->Internet Port（WAN）.
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.
- 4 -

EnterpriseIP Phone GettingStarted
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 register status of the phone.
Line Active You can choose on/off to enable/disable the account respectively.
Label It is showed on the LCD for users to identify the account.
Display Name It is showed as Caller ID when making a phone call.
Register Name It is authenticated ID for authentication, provided by ISP.
User Name User account information, provided by VoIP service provider.
Password It is provided by ISP for registration.
SIP Server & Port Server for registration, provided by ISP.
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.
Configuring via keypad
Network Settings: Press MENU->Settings->Advanced->Network->WAN Port/PC Port
/VLAN/Web Server to enter the internet relating configuration page.
Account Settings: Press MENU->Settings->Advanced->Accounts->OK to configure
the account settings.
You can refer to the above “Configuring via Web Page” for the parameter details.
- 5 -

Enterprise IP Phone Overview
- 6 -
Overview
Keypad Instruction
You can check the following list which introduces the IP phone’s keypad in details:
Power Indication LED
It will show the power status, it will be on if the phone is powered, off if the phone is not
powered.
Context-sensitive Softkeys
The screen will display labels for these keys, to identify their context-sensitive
functions.
Account Buttons
This buttons are used to active up to the two user accounts.
DTMF Keypad
Use the DTMF hard keys to enter numbers, letters and special characters. Depending on
the selected input mode, you can enter digits, lower / upper case or special characters.