To begin, press the Menu softkey found in the lower right-hand corner of the screen.
By Using the direction arrow keys, select Basic, and Press Enter.
Afterwards, Scroll down and find the Wi-Fi option, and press Enter softkey.
To enable Wi-Fi, press the SWITCH softkey to change the setting
to ON and press SAVE.
-We will see the list of available Wi-Fi networks.
-Select your Network to initiate the connection.
-If your network is secured, you will be prompted to enter
your Wi-Fi password and Press OK to finalize your settings.
This is how to connect a Yealink T54 phone to Wi-Fi.