| 摘要 |
A telephone system for reliably providing caller identification information to telephone call recipients such that they can choose whether or not to answer a telephone call. The telephone system includes a decoder module for receiving a toll-free telephone call and decoding automatic number identification (ANI) information included within the toll-free telephone call. The system also includes a converter module for converting the decoded ANI information into caller ID information. The system also includes a forwarding module for making an outgoing telephone call to a toll-based telephone number of the call recipient and sending the audio data of the original toll-free telephone call and the caller ID information with the outgoing telephone call. In this manner, ANI information is used to generate caller ID information even if the calling party has blocked its caller ID information.
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