Abstract: A technique performs route optimization of services provided by one or more service providers (SPs) for communication links that are combined in a computer network. According to the novel technique, performance characteristics and statistics (“link data”) for two or more combined links are merged to form link data for a single “virtual combined link.” Route optimization techniques (e.g., priority-based route optimization) may then be applied to one or more virtual combined links based on the combined link data, in addition to link data for zero or more conventional single links (physical or virtual). Illustratively, a route optimization technique may be used in accordance with the present invention to efficiently and accurately minimize costs associated with services provided by a plurality of SPs, wherein each SP charges for utilization of its service based on a tiered pricing structure.

Abstract: The invention is directed to techniques for suppressing the voice of a user of an audio electronic device, such as a mobile phone, from being heard by an unintended listener. In one arrangement, the invention includes an input microphone, an electronics module, and a suppression speaker. The user speaks into the input microphone, and the electronics module generates an antivoice signal from a voice signal received from the input microphone. The suppression speaker outputs an antivoice output that combines with the voice of the user to form a voice suppression zone next to the speaker. The user thus can carry on his or her conversation in private as long as the unintended listener is within the voice suppression zone. Alternately, the user can avoid distracting other users of similar devices nearby, such as in a crowded office environment with many individuals using telephones at the same time.

Abstract: A technique for efficiently and accurately minimizing costs associated with services provided by a plurality of service providers (SPs) that bill for their services based on a tiered cost structure. Target tiers are generated based on the utilization of the SPs' services and the SPs' cost structures. Utilization of the SPs' services is monitored. A momentary target utilization rate (MTUR) is generated for each SP based on the cumulated utilization of the SP's service and the SP's target tier. Utilization of the SPs' services is distributed based on the generated MTURs in a manner that minimizes cost. If the utilization of the SPs' services indicates the MTURs have been exceeded, new target tiers and MTURs are generated and utilization of the SPs' services is redistributed among the SPs in a manner that minimizes cost.