Invention Grant
US08503620B2 Advertisement based ringback system and method for use with a directory assistance system 有权
基于广告的回铃系统和与目录辅助系统一起使用的方法

Advertisement based ringback system and method for use with a directory assistance system
Abstract:
A communication method includes the steps of receiving a call from a caller for connection to a subscriber, attempting a connection to the subscriber and retrieving a media file associated with the subscriber. The media file is played to the caller during a ring-back period of the attempted connection, playing of the media file to the caller is charged to the provider of the media file.
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