Abstract: The dynamic streaming of multimedia data between a data server and one or more clients is disclosed. Dynamic streaming enables the rapid and accurate characterization of the end-to-end path conditions in a server-client streaming session, as well as the rapid and intelligent response to those conditions in terms of source compression prior to data packetization. The most significant bits of an original bit stream can be adaptively and immediately selected in response to network conditions. The adaptive selection process is informed by feedback from the client receiver indicative of a time-to-transit the network from server to client. A control protocol and server architecture, including file format, data structure, data processing procedures, cache control mechanisms, and adaptation algorithms useful in implementing dynamic streaming are also disclosed.

Abstract: One or more method(s), system(s), call-back device(s), and/or computer readable medium(s) establishes a customer service transaction between a user and a customer service representative. The user is provided access to a customer service terminal having a user interface configured to permit the user to enter a customer ID associated with a mobile device of the user. The customer ID, and optionally location information as well, is received at the customer service terminal and is transmitted to a customer service representative through a network operably coupled to the customer service terminal. A customer service transaction is initiated at the customer service terminal and is handed-off to the mobile device of the user, e.g., a cellular phone of the user is automatically dialed by the server. The user is able to move freely throughout a retail establishment or other location while communicating with the customer service representative.