2N T58W Pro - Deleting a Line Key

Customizing Your Phone
148
The following shows the locations of two line keys after exchange:
Deleting a Line Key
You can delete a line key when you no longer need the corresponding function.
Procedure
1. Drag the desired line key to the Delete field.
The phone prompts you to delete the DSS key or not.
Yealink T58W User Guide