Yealink SIP-T4X Administration Manual page 187

Administrator's Guide for SIP-T4X IP Phones
Active.
3. Enter the VLAN ID in the VID (1-4094) field.
4. Select the desired value (0-7) from the pull-down list of Priority.
5. Click Confirm to accept the change.
A dialog box pops up to prompt reboot to make the settings effective.
6. Click OK to reboot the IP phone.
To configure VLAN for PC port via web user interface:
1. Click on Network->Advanced.
2. In the VLAN block, select the desired value from the pull-down list of PC Port Active.
3. Enter the VLAN ID in the VID (1-4094) field.
4. Select the desired value (0-7) from the pull-down list of Priority.
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