Allow webex calling admin to modify the text

Allow webex calling admin to modify the text and or format of the voicemail notification email

As an admin for webex in my company, I would like to be able to change the text of the email notification that is sent (if it is enabled) when users receive a new voicemail. For compliance reasons, we only want the email notification to say that a voicemail has been received or is waiting without indicating who the caller is or what number they are calling from.