Abstract: A ring-back tone generator system receives an inbound call connection request forwarded from a phone switch (such as an MSC) that receives the inbound call connection request from a caller phone attempting to connect to a target phone (e.g., a subscriber). The ring-back tone generator system initiates generation of a first call connection on which to provide the customized ring-back tone (and/or custom video image data) to the caller phone. The ring-back tone generator system also transmits, based on receiving the inbound call connection request, an outbound call connection request to the phone switch (such as the MSC) to establish a second call connection through the phone switch to the target phone. Consequently, an MSC that normally handles such call processing now relies on the ring-back tone generator system to handle call processing and provide a custom ring-back tone service.

Abstract: Users of network based software applications typically interact with an application via a command line interface or a menu interface. Conventional voice-driven communication threads rely on a dedicated communication line (connection) to maintain a session context, or state, between a user and an application for the duration of a session. Such state information enables the application to reference a session context for the session duration, and employ the session context to maintain a state from previous atomic messages sent and received between the device and the application. By maintaining and referencing a session context indicative of previous messages, an application identifies an atomic message as corresponding to a particular session context, and employs the session context to process the message within the context, or environment, defined by the previous messages in the session.