Polycom VVX 201 Getting Started page 8

Polycom VVX 201 Phone Screen Views
The Lines View
The Lines view displays phone lines, favorites, and soft keys
You can press the Line key to access the dialer if your phone is idle
If your phone has active calls, the phone line indicates the number of calls
you have, and if they're active or held
To select a call, use the up and down arrow keys.