Abstract: A system for managing network bandwidth, according to one embodiment of the present invention comprises a configuration storage module and a call manager. The configuration storage module includes a supported codecs storage, codec lists, administrator settings storage and reservation storage list. The call manager includes an extension module, trunk module, location service engine, settings manager, bandwidth manager and media stream manager. The call manager receives an offer message for a call having one or more media types. The call manager uses information included in the offer message, along with information stored in the configuration storage module, to negotiate a call settings list with one or more other sites for connecting the call, and thereby manage bandwidth for the call.

Abstract: A system for using one or more via sites to manage network bandwidth, according to one embodiment of the present invention comprises a first call manager at a source site receiving an offer message to connect a call. The offer message includes an endpoint media settings list. The first call manager determines a first filtered media preferences list based on a source media settings list and the endpoint media settings list. The first call manager and transmits an invite message to a second call manager at a first via site. The invite message includes the first filtered media preferences list. The first call manager receives from the second call manager a call settings list that includes a description of the call settings negotiated between the source site, the first via site and a destination site.

Abstract: A system for bandwidth management and codec negotiation, according to one embodiment of the present invention comprises: a configuration storage module having supported codecs storage, codec lists and preferred site settings storage, and a call manager having an extension module, a trunk module, a location service engine, a codec manager, a bandwidth manager, and a media manager. The codec manager and the bandwidth manager used for negotiating a codec for a call between two endpoints. The present invention also includes a number of methods including a method for negotiating a codec for a call, a method for managing bandwidth for a call, a method for adding a description of a new codec supported by an endpoint, a method for adding an identifier of a supported codec to a codec list and a method for editing code site codec settings.

Abstract: A user-responsive system has a controller and a plurality of remotes. Each remote typically has a corresponding sensor and/or actuator. Applications for this system include, but are not limited to heating, ventilating, and air conditioning systems, lighting systems, security systems, energy management systems, home automation systems, and home entertainment systems.

Abstract: A price display system for a store includes spread spectrum radio broadcasting of UPC and price data from a transmitter in the store to a large number of receivers. Each receiver is connected to one or more LCD displays attached to the store shelves, and each receiver provides the relevant information to each of the connected displays. The displays and receivers are battery powered.