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Yealink SIP-T31G

10 min read

Table of Contents

Installation & Connection #

Package Contents #

The following items are included in your package. If you find anything missing, contact your system administrator.

Assembling the Phone #

  1. Attach the stand.

You can also mount the phone to a wall.

2. Connect the handset and optional headset.

3. Connect the network and power.
You have two options for network and power connections. Your system administrator will advise you which one to use.

Hardware Introduction #

NO. Item Description
1 Power LED Indicator Indicate call, message, and phone system status.
2 Phone Screen Shows information about your phone, such as calls, messages, soft keys, time and date.
3 Line Keys Access your phone lines and features.
4 Soft Keys Access the function displayed on the screen above the soft keys. The soft keys change depending on what you are doing at the time.
5 Navigation Keys • Scroll through information or options displayed on the screen.
• Access History and Directory respectively.
5 OK Key Confirm actions or answer incoming calls.
6 MUTE Key Toggle the microphone on or off.
7 MESSAGE Key Access your voice messages.
8 TRAN Key Transfer a call.
9 HEADSET Key Toggle the headset mode on or off.
10 Speakerphone Key Toggle the speakerphone (hands-free) mode or not.
11 REDIAL Key Redial a previously dialed number.
12 Volume Key Adjust the volume of the handset, headset, and speaker.
13 Keypad keys Allow you to enter numbers, letters, and special characters. If a menu item has an index number, you can use the keypad key to select the item.
14 Speaker Provide ringer and speakerphone audio output.
15 Reversible Tab Secure the handset in the cradle when the phone is mounted vertically.

Screen Icons #

Call Screen Icons #

All of your active and held calls are displayed on the calls screen. You can press the up or down navigation key to switch between calls.

For T33P/T33G, the calls screen can display the local name or number. Check with your system administrator to see if this feature is available on the phone. When there is an active call and a held call, the calls screen is shown below:

You can press OK key during a call to view the current time & date, and phone status. The phone screen is shown below:

Idle Screen Icons #

  • Status Bar: Display the default account, feature status icons, and the time. The status icons are displayed when features are activated.
  • Line Keys: Display the information associated with the line and feature keys on the phone.
  • Page Icons: The page icons appear only when you assign functionality to the line key located in line keys 5-12 on the T33P/T33G phones.
  • Soft Keys: Each soft key label indicates the action for the soft key below the screen.

Line Key Icons #

Icon indicators (associated with line key features)

Icons Description Icons Description
23 Hold 13 DND
24 Voice Mail 33 SMS
25 Direct Pickup 34 Group Pickup
26 Conference 36 Forward
27 Transfer 37 Recall
28 Record 38 Recording in the process (Record)
29 Multicast Paging Paging List 39 Hot Desking
31 Phone Lock 40 Directory
32 Speed Dial – –

 

Icon indicators (associated with line)

Icons Description Icons Description
41 The private line is registered successfully 44 The shared/bridged line registers successfully
42 Registering 45 Register failed
43 DND is enabled on this line 46 Call forward is enabled on this line

 

Icon indicators (associated with line)

Icons Description Icons Description
47 The private line is registered successfully 50 The shared/bridged line is registered successfully
48 Register failed 51 Registering
49 DND is enabled on this line 52 Call forward is enabled on this line

 

Status Bar Icon #

Icons Description Icons Description
111 Wired network is unavailable 212 Do Not Disturb (DND)
222 Wired network is unreachable 999 Phone Warning
333 Speakerphone (hands-free) mode 124 Keep Mute
444 Handset Mode 125 Ringer volume is 0
555 Headset Mode 126 Phone Lock
666 Voice Mail 127 Missed Calls
777 Text Message 128 Call Forward
888 Auto Answer – –

LED Indicator #

Power LED Indicator

The power LED indicator indicates the call, message and phone’s system status.

LED Status Description
Solid red The phone is initializing.
Flash red fast (0.3 s) The phone is ringing.
Flash red slowly (1 s) The phone receives a voicemail or text message.
Solid red for 0.5 s and off for 3 s alternately The phone enters the power-saving mode.

 

Line key LED (configured as a page switch key)

LED Status Description
Solid red There is a call parked on the line, and the line key is not on the current page.
Flash green fast The line receives an incoming call, and the line key is not on the current page.
Flash red fast The monitored user whose line key is not on the current page receives an incoming call.
Off The line keys are idle.

Getting Started #

Startup #

After the IP phone is connected to the network and supplied with power, it automatically begins the initialization process. After startup, the phone is ready for use. You can configure the phone via a phone or web user interface.

Configure Your Phone #

Configure via Web User Interface

  • Accessing the web user interface:
    1. Press image-20230517170344431 (the OK key) to obtain the phone’s IP address when the phone is idle.
    2. Open a web browser on your computer, and enter the IP address into the address bar (e.g., “http://192.168.0.10” or “192.168.0.10”).
    3. Enter the user name (default: admin) and password (default: admin) in the login page and click Login.
  • Network Settings: Go to Network > Basic > IPv4 Config. You can configure the network settings in the following ways:
    DHCP: By default, the phone attempts to contact a DHCP server in your network to obtain its valid network settings, e.g., IP address, subnet mask, gateway address and DNS address.
    Static IP: If your phone cannot contact a DHCP server for any reason, you need to configure the IP address, subnet mask, gateway address, primary DNS address and secondary DNS address for the phone manually.

    NOTE: The IP phone also supports IPv6, but IPv6 is disabled by default. The wrong network settings may result in the inaccessibility of your phone and may impact the network performance. Please contact your system administrator for more information.

  • Account Settings: Go to Account > Register > Account X (X=1, 2).
  • Parameters of the account:
Parameter Description
Register Status It shows the registration status of the current account.
Line Active You can select Enabled/Disabled to enable/disable the account.
Label It is shown on the LCD screen to identify the account.
Display Name It is shown as caller ID when placing a call.
User Name It is provided by ITSP for registration (required).
Register Name It is an authenticated ID for authentication provided by ITSP (required).
Password It is provided by ITSP for registration (required).
Server Host It is provided by ITSP for registration (required).
  • Register status icons on the LCD screen:
image-20230517171029240

Configure via Phone User Interface

  • Network Settings:
    Press the Menu when the phone is idle, and go to Settings > Advanced Settings (default password: admin) > Network > WAN Port > IPv4 to configure the network.
  • Account Settings:
    Press the Menu when the phone is idle, and go to Settings > Advanced Settings (default password: admin) > Accounts to configure the account.

Basic Usage #

Place Call #

Using the handset:

  1. Pick up the handset.
  2. Enter the number and press Send.

Using the speakerphone:

  1. With the handset on-hook, press img.
  2. Enter the number and press Send.

Using the headset:

  1. With the headset connected, press image-20230517172758960to activate the headset mode.
  2. Enter the number and press Send.

Answer Call #

Using the handset:

Pick up the handset.

Using the speakerphone:

Press img.

Using the headset:

Press image-20230517172758960.

End Call #

Using the handset:
Hang up the handset or press EndCall.

Using the speakerphone:
Press img or EndCall.

Using the headset:
Press EndCall.

Redial #

  • Press image_2023-05-DD-53 to enter Placed Calls list, select the desired entry and press image_2023-05-DD-53 or Send.
  • Press image_2023-05-DD-53 when the phone is idle to dial out the last dialed number.

Call Mute/Unmute #

  • Press image_2023-05-DD-23 to mute the microphone during a call.
  • Press image_2023-05-DD-23 again to unmute the call.

Call Hold #

To place a call on hold:

Press Hold during an active call.

To resume the call, do one of the following:

  • If there is only one call on hold, press Resume.
  • If there is more than one call on hold, select the desired call and press Resume.

Call Transfer #

You can transfer a call in the following ways:

Blind Transfer

  1. Press img or Trans during a call.
  2. Enter the number you want to transfer to.
  3. Press img or B Trans.

Semi-Attended Transfer

  1. Press img or Trans during a call.
  2. Enter the number you want to transfer to and press Send.
  3. Press img or Trans when you hear the ring-back tone.

Attended Transfer

  1. Press img or Trans during a call.
  2. Enter the number you want to transfer to and press Send.
  3. Press img or Trans when the second party answers.

Call Forward #

To enable call forward:

  1. Press the Menu when the phone is idle, and then select Features > Call Forward.
  2. Select the desired forward type.
  3. Enter the number you want to forward to. For No Answer Forward, select the desired ring time to wait before forwarding from After Ring Time field.
  4. Press Save to accept the change.

Call Conference #

  1. Press Conf during an active call. The call is placed on hold.
  2. Enter the number of the second party, and press Send.
  3. Press Conf again when the second party answers. All parties are now joined in the conference.
  4. Press EndCall to disconnect all parties.NOTEYou can split the conference call into two individual calls by pressing Split.

Speed Dial #

To configure a speed dial key:

  1. Press the Menu when the phone is idle, and then select Features > Dsskey.
  2. Select the desired DSS key.
  3. Select the SpeedDial from the Type field, select the desired line from the Account ID field, enter a label in the Label field, enter the number in the Value field.
  4. Press Save to accept the change.

To use the speed dial key:
Press the SpeedDial to dial out the preset number.

Voice Message #

The message waiting indicator on the idle screen indicates that one or more voice messages are waiting at the message center. The power indicator LED slowly flashes red.

To listen to voice messages:

  1. Press image_2023-05-DD-47 or Connect.
  2. Follow the voice prompts to listen to your voice messages.

Call History #

  1. Press the History when the phone is idle, press image_2023-05-DD-04 or image_2023-05-DD-38 to scroll through the list.
  2. Select an entry from the list, and you can do the following:
    • Press Send to call the entry.
    • Press Delete to delete the entry from the list. If you press Option, you can also do the following:
      • Select Detail to view detailed information about the entry.
      • Select Add to Contacts to add the entry to the local directory.
      • Select Add to Blacklist to add the entry to the blocklist.
      • Select Delete All to delete all entries from the list.

Contact Directory #

To add a contact:

  1. Press Dir when the phone is idle, and then select All Contacts.
  2. Press Add to add a contact.
  3. Enter a unique contact name in Name field and contact numbers in the corresponding fields.
  4. Press Save to accept the change.

To edit a contact:

  1. Press Dir when the phone is idle, and then select All Contacts.
  2. Press image_2023-05-DD-04 or image_2023-05-DD-38 to select the desired contact, press Option and then select Detail from the prompt list.
  3. Edit the contact information.
  4. Press Save to accept the change.

To delete a contact:

  1. Press Dir when the phone is idle, and then select All Contacts.
  2. Press image_2023-05-DD-04 or image_2023-05-DD-38 to select the desired contact, press Option and then select Delete from the prompt list.
  3. Press the OK when the LCD screen prompts “Delete selected item?”.

Volume Adjustment #

Press image_2023-05-DD-12 to adjust the volume.

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