The present invention provides methods that allow more sophisticated use of custom calling services by consolidating the access to and administration of services for multiple lines and/or telephone devices. Embodiments include a single configuration interface for the calling services on all of an individual's telephone lines or devices, a single system for providing incoming calling services for all of an individual's telephone lines or devices, and a single system for providing outgoing calling services for all of an individual's telephone lines or devices. The present invention also includes features which allow custom calling services for a particular telephone device to be customized so as to interact with the custom calling services on another telephone device belonging to the same user.