Follow instructions below to manually enable Wi-Fi on your T53W Yealink phone.
Select the Menu button.
Select Basic Settings
In the Basic Settings scroll down and select Wi-Fi
Turn the Wi-Fi setting On and Save
Now that phone has Wi-Fi On, scroll down to Available Network(s)
NOTE: the number of Available Networks will vary. In example below there are 12 available wireless networks.
Scroll to the wireless network you want to connect to and select Connect
Enter the Password of the wireless network and select Connect
NOTE: to change from Numbers to Letters for Password press the "123" key. Some special characters can be found on the * key (star key).
The icon below will indicate you have successfully connected to the Wi-Fi.