Abstract: A service management system that enables a subscriber of a mobile telecommunication system to modify aspects of his or her service plan and have the modification to the service plan take effect immediately. The subscriber enters a modification request to an aspect of a service plan. The modification request is verified against a set of rules that defines acceptable changes to the service plan. If the proposed modification to the service plan is a valid change, the change to the service plan is immediately propagated to a billing system and to other systems that implement the service plan. The subscriber is notified when the modification to the service plan is complete, and the subscriber is billed on a going-forward basis in accordance with the rate structure applicable to the plan.

Abstract: A preferred contact group centric interface for a communication device can be used to facilitate communications by a user. The user interface can be arranged to activate from a user's “home page” on the display, from an idle screen that is accessed after a timeout period expires, or any other appropriate mechanism that activates the preferred contact group centric experience. A user selects the preferred contact group from among an array of the user's contacts. Once the contact group is configured, a minimal number of navigation/selection features is necessary to activate any number of communication modes available to the contacts. The contact group is configured such that simple and quick navigation between the contact members is achieved. The contact group can be presented in 2D and 3D arrangements, in any number of list or geometric configurations. A pricing plan can optionally be tied to each member of the contact group.