| 摘要 |
A total customer service system is provided to enable a service program supply device to a public address and selectable video and audio data to a terminal. A total customer service system has a hierarchical structure including a database, a computer, a communication switching device, and a service program supply device. Terminals access an upper level device through middle switching devices and a data memory. The service program supply device supplies a public address and selectable video and audio data to the terminals. The service program supply device is combined with the middle switching device. |
