Removing the ability to switch extensions for a number in the app has been very inconvenient. We use this service to make sure someone is available by phone at all times. To use a browser now to switch extensions involves multiple steps and can be difficult to navigate when having a limited view on a cell phone. We do not always have access to a desktop when extensions need to be switched. The app should have this feature to provide ease in usability. I do not understand the purpose of removing this option and placing it in “Legacy admin tools”.