To sign-in using Enhanced mode:
1. On the Welcome screen, select Yes, as shown next.
2. Connect a USB cable from your computer to the USB port on the phone.
3. Press Sign in on the phone.
4. Enter your login credentials—username and password— into the Skype for Business client on your computer.
You only need to connect the phone to your computer the first time you sign-in.
After you connect your phone to your computer, set your phone as your primary device in the Skype for Business client.
To set your phone as your primary device:
In the Skype for Business client, click Tools > Audio Device Settings, and select Polycom CX3000 as your primary audio device.