Invention Grant
US07903803B2 Multimedia caller ring information service 有权
多媒体来电铃声信息服务

Multimedia caller ring information service
Abstract:
A system and method for providing ring back content is provided. In some embodiments, the ring back content is multimedia, audio and video, content and may be advertisements. The method includes calling a subscriber, and receiving content as ring back when calling the subscriber.
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