You cannot delete a destination group while it is used in a rule. Remove the destination group from the rule first, and then delete the destination group.
Procedure
Step 1
In the Personal Call Transfer Rules web tool, from the Destinations menu, select View Destination Groups.
Step 2
On the Destination Groups page, check the check box for the group you want to delete. You can check multiple check boxes to delete more than one destination group at a time.
Step 3
Select the Delete Selected Rows icon below the menu bar.