Basic Concepts There are only a few things you should understand before you start trying to edit your account. Callflows and Numbers Callflows define the flow of a call, or which instructions to process when someone dials a specific phone number. Users Add, edit and manage users from within callflows. However, it is often useful to manage users from a list outside of callflows Devices Set up a lot of different devices. to work with your account. Voicemail Voicemail system supports an unlimited number of mailboxes, both individual and shared amongst multiple users. Features There are a lot of available features that you can use at any time.