This How-To article will help Webex users set up their Phone Service in the Webex application. The user must have the Phone Service enabled by the Telecommunications team and licensed for this service in the Webex Control Hub.
The lower-right corner of the Webex App will display “Call settings,” which is confirmation that your Phone Services are connected.
Reference guide: Webex Quick Reference Guide v1 (author Leticia Hernandez)