The current way of silencing calls through Webex is outdated by using a toggle switch. As for people who use Webex app and are doing shift work have to toggle that option or sign out of the app entirely. There should be an option within the app to have it set to a schedule of Sun-Sat for the days that you do not wish to have phone call notifications. For somebody who works 3 days a week and 12 hour shifts it has become a hassle of remembering to go in a turn this switch on after I get done with my shift. Being a 24/7 call line rings in the middle of the night awaking me and my SO.