Enable Do Not Disturb
You can enable Do Not Disturb when you don’t want to receive calls. 
On the home screen, tap DND. The DND icon is the blue circle with a phone and red 
dot on it, it displays on the line key and in the status bar. 
Handle Video Calls
If  video is enabled, you can receive video during calls. If  you have a VVX Camera at-
tached to your phone, you can send video during calls. 
•  To stop sending video during a call: Tap Video > Stop Video
•  To start resending video: Tap Video > Start Video