Abstract: The present invention is directed to a system and method for use in a telecommunication networks to facilitate the use of packet switched end-user devices, particularly push-to-talk (PTT) devices, across multiple communication services and legacy networks. The present invention provides an enhanced proxy for integrated voice over internet protocol (VoIP) applications that enable predefined custom numbers to be utilized on a PTT device to access services on one or more legacy networks. The present invention also provides a means for the delivery of information that is dynamically customized and specific to an end-user of the PTT device.

Abstract: A Java based server is disclosed for providing streaming data. Streaming data is received in a publisher interface and processed to generate Java messages describing real time updated. One application of the Java based server is to provide streaming data for business process.

Abstract: A no-charge transaction service method and apparatus for prepaid cellular telephones is provided which utilizes a prepaid cellular telephone in conjunction with a wireless intelligent network coupled to a prepaid cellular service provider. The user enters a short code to indicate a top-up request or other transaction request along with payment information into the prepaid cellular telephone using the alphanumeric keypad. The call data is transmitted to the wireless network which identifies the call and transfers the information to the prepaid cellular service provider. The prepaid cellular service provider identifies the transaction type, validates the call data and sends a verification message to the prepaid cellular telephone and other associated equipment, if any, via short message service, push to talk service, or other means without completing the originating call.

Abstract: A request/reply middleware wrapper that transposes an application's request/reply communications into publish/subscribe communications implemented by publish/subscribe middleware where every distributed application component of a distributed application is referenced by a component type and name. Each component type has associated with it a request publish/subscribe topic and a reply publish/subscribe topic. Each distributed application component subscribes to its request and reply topics and can publish to request and reply topics of other component types. By utilizing callback objects, the middleware wrapper facilitates the transmission of a request and replies between distributed application components by posting the requests or replies on an appropriate request or reply publish/subscribe topic.