How do I forward my calls to another phone number in Webex?
Go to Call Settings at the very bottom of the Webex window.
Open Call Preferences.
Enter a number you'd like to forward calls to.
Hit the + and enter either an extension number to forward calls to or enter a 9 and the 10 digit number for forward calls to an off-campus number. Hit return.
Select the number from the list next to "Forward Call to:".
https://help.webex.com/en-us/n6ycytf/Webex-Forward-Phone-Calls