发明名称 Location relevant directory assistance
摘要 A method for location relevant directory assistance through a PSTN is provided. The method can include connecting a calling party with a called party through a switch in a PSTN, receiving a directory assistance request from the calling party over the PSTN, and querying a database disposed within the PSTN to retrieve caller identification for the calling party. The method can further include retrieving from over a data communications network separate from the PSTN a call address in response to the querying of the database for the calling party from the database disposed within the PSTN. Location relevant directory information can be identified from a database that is external to the PSTN based upon the retrieved call address. Subsequently, the directory assistance request can be responded to using the identified location relevant directory information.
申请公布号 US8548150(B2) 申请公布日期 2013.10.01
申请号 US20040852910 申请日期 2004.05.25
申请人 CREAMER THOMAS E.;JAISWAL PEEYUSH;MOORE VICTOR S.;INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 CREAMER THOMAS E.;JAISWAL PEEYUSH;MOORE VICTOR S.
分类号 H04M3/42;H04M3/493;H04M7/00 主分类号 H04M3/42
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