From the customer view in https://admin.webex.com, go to Management > Workspaces, and then select the workspace that you want to update.

Go to Calling and click the cogwheel . Then choose a call service for the workspace and click Save.

• Call on Webex (1:1 call, non-PSTN) (default)—For Webex App and SIP address calling.

• Cisco Webex Calling—Add PSTN service to the device in the Workspace through the Webex Calling service—depending on your deployment, the PSTN service may come from a local gateway on the premises, through the PSTN the Service Provider bundled, or through a cloud connected PSTN (CCP) provider. Assign a phone number and extension to the device, and then click Next.

  For more information about the PSTN options, see PSTN Connectivity in the data sheet.

• Hybrid Calling—To use call service (PSTN access or internal extension access) through your on-premises call control. Unified CM provides the phone number or extension for the devices in the place.

  If you chose Hybrid Calling, enter the Unified CM mail ID for the account that you created earlier. Then download the Device Connector to synchronize the Unified CM configurations to the cloud. Then click Next.

  For more information, see the Deployment Guide for Hybrid Calling for Cisco Webex Devices.

Go to Workspace Scheduling and click the cogwheel . Choose a scheduling option for the workspace and click Save.

• None—Select if you use the Workspace as a basic shared workspace. This is the default setting.

• Calendar—Select if you want to receive meeting notifications from the room calendar.

• Hot desking—Select if want your users to sign in and book the device.

  It's recommended that you do the following configuration changes for Hot desking. Turn off Standby to show the booking status as half-awake. Set Ultrasound to 0 if you are deploying the device to an open workspace.