Yealink T4 Series Desktop Phones

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How to integrate your Yealink T4 Series Desktop SIP phones with your pascom phone system.

Yealink T46G

Compatibility

Provisioning Firmware Management Desktop Client CTI Control pascom Menu
yes yes yes yes

Provisioning: The IP phone is manageable via the PBX web UI.
Firmware Management: Firmware can be managed and updated via the PBX web UI.
Desktop Client CTI Control: The desktop UC client can remotely control the phone, i.e. to start calls.
pascom Menu: A phone touch key will be assigned to access the pascom Menu.

For local pascom phone system installations, it is possible to automatically on-board and perform mass deployments of endpoints using the DHCP server. For more details, please refer to our HowTo Telephone Provisioning via DHCP.

pascom phone systems are able to automatically and centrally configure Yealink IP phones. This process is known as Provisioning. For this purpose, pascom phone systems include a Default Configuration ( > ). For most deployment scenarios, these standard settings provide an ideal configuration. However, in some cases, the settings may need to be modified.

Should the telephone not be factory new, ensure you perform a factory reset. In order to do this on the phone, power up the phone and then press holding the final until Factory Reset appears in the display. Confirm by pressing .

Connect the phone to your network. Yealink IP phones come with a built in switch, allowing you to connect the phone directly via the Ethernet port labelled as Internet. Should you not have a PoE option available, connect the phone to a power supply.

After the boot proces press again and note the phone’s IP Address.

Finding the MAC Address

The MAC address is noted on the rear of the device housing.

Alternatively, using your browser go to the previously noted telephone IP address. Log into the phone’s web UI using the username and password admin admin. Under > take a note of the phone’s MAC address.

Log into your pascom phone system web UI and nder > and press and select the option IP Telephone: Manufacturer Yealink.

Under the corresponding field, enter the MAC Address that you have just found and noted.

Apply Jobs

After saving your phone setup configurations, a corresponding prompt to apply telephony configs will appear in the job box (top of the screen). Simply start the job by clicking on the .

Finding the Provisioning URL

Select the desired telephone from the device list and under select the option . Copy the URL to your clipboard.

Enter the Provisioning URL on the Telephone

Should you not have installed an official certificate on your proxy, you will need to configure the phone to Only Accept Trusted Certificates by going to the phone’s web UI menu > and selecting Disabled .

Again in the Yealink phone’s admin UI, go to > > and enter the copied provisioning URL.

Click and finally .

The phone will now restart.

Assign Users

As soon as the IP phone has appeared in the Device List, it can be edited via the button. Under the tab, the phone can be assigned to a user (or location).

After saving and once again apply the telephony configuration, the telephone will restart.

Function Testing

The simplest method of testing whether a device has been successfully deployed is to call ones Voicemail box via *100. On successfully provisioned phones, you should now hear your Voicemail box prompts.

pascom Menu Key

Having been provisioned, the pascom menu key can be found on the second function key on the display of the Yealink IP phone. The following pascom phone system functions are available under this key:

Function Description
Telephone Book Opens up the central pascom phonebook.
Journal Displays answered, dialed and missed calls
Call Forwarding Sets a call forwarding, activates / updates a previously configured call forwarding or deactivates an active call forwarding.
Voicemail Box Voicemail box menu for activating/deactivating your mail box, plus message play backs
Login Enables a user to log into the location where the phone is (Hotdesking / roaming users).
Logout [username] Logs out the current user from this location.
Teams (Queues) Is used for agent management within a queue (login, logout, pause..) according the configuration of the queue.

Only set Call Forwardings via the pascom menu as they can then be managed by the PBX.

Using the DND key (Do Not Disturb) directly on your Yealink phone, ensures that the assigned user extension cannot be reached on the phone. The DND notice will appear only on the telephone itself and will have no impact on other endpoints or the Desktop UC client (softphone).

In order to access the web UI of your Yealink phone, you will need to know the phone’s IP address. The following outlines the different methods of discovering the phone IP Address:

Finding the IP-Address on the Telephone

Press the OK key when the phone idle screen is active and the phone IP address, MAC Address and firmware will be displayed.

Finding the IP-Address via the pascom Web UI Device Listn

Log into the PBX Web UI and select the > , which provides you an overview of all available devices. To the left of each entry is an Info symbol which when clicked will open an overview of the provisioned telephone including the IP address.

Function Keys

The function keys to the right and left of the Yealink phone’s screen support a 3 page view, meaning they can be assigned with 3 different functions one for each page. Should the first page be fully assigned, the last key (bottom right) can be used to toggle pages.

BLF Key User / Extension Monitoring

Using the function keys, it is possible to monitor other extensions (i.e. users). The BLF keys (Busy Lamp Field) can be used to provide status information relating to the monitored extension. In this scenario, monitoring means watching the extension to see if the user is currently on the phone, being called or to answer calls intended for this extension (call pickup).

Function Keys can be assigned in a variety of ways.

Push and hold the function key on the phone which you wish to configure for 5 seconds. At this point you will be able to assign this key with a function (e.g. BLF key).

Settings Assignment
Type BLF
Account ID Line 1
Label Enter a name for the key.
Value The extension to be monitored, e.g. 123 for the ext 123

To confirm, press Save.

Under the tab it is possible to assign the various telephone keys as BLF keys for example:

Type Value Label Line Extension
BLF The extension to be monitored, e.g. 123 for extension 123 Enter an label / name for the key. Line 1 The extension number, i.e. 123

As well as user extensions, it is also possible to configure a BLF key with login codes or extensions switches.

Further Useful Function Keys

Function Key Description
Speed Dial Can be assigned with a telephone number.
DTMF Can be assigned with DTMF characters.

Default Configuration

As previously stated, Yealink IP phones are provisioned using the default configurations which can be found under > .

When modifying the default configuration settings, ensure you make a duplicate copy of the original using the tool.

In addition, you can set an already edited default configurations as the . Doing so ensures that all newly added IP telephones will automatically be provisioned with these default configurations.

Assigning a Default Configuration

A default configuration can be assigned using multiple methods:

  • Via > > Choose your Basic configuration set and press Under the tab, it is possible to add multiple IP telephones.
  • Via > > Select and edit the IP Telephone and under the tab choose the correct Basic configuration option.

Default Configuration & Automatic BLF Assignment

Under the tab, it is possible to modify the existing basic configuration. Under the Keys section you will find the already pre-configured function keys which provide a useful guideline to work with.

BLF Keys can be setup as follows:

{{!-- keys --}}
linekey.3.type = 16
linekey.3.value = 123
linekey.3.label = Max

The assigned key (in this case, line key 3) consists of three parameters:

  • type: The key type, 16 stands for BLF,
  • value: the value, in this case the extension number,
  • label: the label, which is to be displayed on the phone’s screen Label.

Via the menu tab , assign these default configurations to thoses telephones that should be configured with this BLF setup. Save and apply your changes and once the phones have restarted, the changes will have taken affect.

Firmware Updates

From mobydick version 7.14 onwards, IP endpoint firmware will no longer be included as standard. Should a firmware version (other than the version pre-installed on the phone) be required, this must be externally sourced and per hand uploaded to the phone system firmware management tool.

Upload New Firmware

The desired firmware can be uploaded via the the > :

Settings Description
Firmware Files Upload the firmware files here. Firmware can be found here: Yealink support download page.
Model Yealink Telephone model name
Version Firmware Version
Comments Optional field for notes

Firmware Roll Outs

Firmware updates can be roll out via the > menu. Simply select the desired Yealink Endpoints from the list via the check boxes and under > . This will open an overview of all selected devices to which the new firmware version should be roll out to. Click to roll out the desired firmware version.

As there are numerous Firmware versions available for the varying IP endpoint models, it is unfortunately not possible to test them all. Therefore, it is possible that some firmware versions may not support all phone system functions. If in doubt, please refer to below list of already tested firmware versions:

Model Firmware
T41P 36.81.0.110
T46G 28.81.0.110, 28.73.0.50
T46S 66.81.0.20, 66.81.0.110