Answering Calls with multiple or shared lines
The Webex Calling Dock can provide a convenient view for managing and answering calls across lines.

L1 – Primary Line: Your main Webex phone number. Incoming calls can be answered or declined. Declining a Primary Line call sends it to voicemail.
L2 – Secondary/Shared Line: An additional line assigned to your Webex App. Declining a Shared Line call silences it on your device while it continues ringing on other configured devices/users.