You can control whether Wi-Fi-based device discovery is available for Webex devices. When ultrasound connection isn't working, Wi-Fi-based device discovery provides users with a list of nearby room devices in Webex that they can connect to for meetings or sharing their screens.
When Wi-Fi-based device discovery is enabled in the Cisco Webex Control Hub, you're giving us consent to collect certain non-personal information about your Wi-Fi environment, not your users. Every time your users connect to a paired device in Webex using an ultrasound connection, information about WLAN proximity data is collected in the cloud. Service set identifiers (SSIDs) and basic SSIDs (BSSIDs) are used to identify the visible WLANs, store them in this database in the cloud, and later match them in the search matching operation. The WLANs are one-way hashed before transmitting so the server side can never read the human-readable SSID or MAC address.
When users choose to Connect to a device in Webex, the app detects the presence of Webex devices as the users move about. That information gets uploaded to this database in the cloud. The Proximity Service finds up to 5 devices that are nearby by comparing the app's current WLAN environment to these stored observations. Users no longer have to manually search for devices to connect to.
The list of devices that are within range is dynamic and updates based on a user's location.
We encrypt the following information and only use it to suggest available devices to users for automatic connection:
In-range Wi-Fi network
Wi-Fi access points
Signal strength of the access points at the time of pairing
The above information is updated daily by devices and when Webex connects using ultrasound discovery.
Wi-Fi-based device discovery is enabled by default for your organization, users can choose to disable the Wi-Fi discovery setting in Webex. Or you can disable Wi-Fi-based device discovery for your organization.
From the customer view in https://admin.webex.com, go to Devices and click Settings. Under Device Discovery, uncheck Provide device suggestions based on Wi-Fi connectivity.