Abstract: A method of content transmission to a mobile device in a mobile communication network is provided. The method includes determining whether the mobile device is in a first mode; delivering real-time content to the mobile device while the mobile device is in the first mode; and discontinuing delivery of real-time content if the mobile device is in a second mode.

Abstract: A method of requesting content from a communication server in a mobile communication network is provided. The method comprises determining whether the mobile device is in a first mode; requesting content for delivery to the mobile device, while the mobile device is in the first mode; and discontinuing requesting the content if the mobile device is in a second mode, wherein the first mode is distinguished from the second mode based on length of lack of user interaction with the mobile device to perform one or more functions.

Abstract: A method of communicating with a subscriber of a communication service is provided. The method comprises processing contact information provided to a first communication device for establishing a communication connection with a second communication device used by the subscriber; accessing the subscriber's profile information based on the provided contact information; and determining an availability status for the subscriber based on the profile information, wherein the profile information is updated in real-time in accordance with at least the subscriber's interaction with the second communication device.