| 摘要 |
In an advertisement system for an IMS (IP Multimedia Subsystem) network, multimedia advertisements are transmitted to end-user terminals according to three available advertising service functions: when a user terminal calls a designated phone number; when the system calls a user terminal, typically during a user-designated time window; and when a first user terminal calls a second user terminal, in the time period before the call is answered. The system includes an advertisement application server, which coordinates and manages operation of the system, and an advertisement media server, which stores and transmits the advertisement data to end-user terminals. In operation, upon determining to transmit advertisements to a user terminal, a link is established with the terminal. Multimedia advertising data (including picture/video content and audio content) is then transmitted from the media server to the user terminal over the IMS network. Users may be awarded service credits for viewing advertisements.
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