×

Location relevant directory assistance

  • US 8,548,150 B2
  • Filed: 05/25/2004
  • Issued: 10/01/2013
  • Est. Priority Date: 05/25/2004
  • Status: Active Grant
First Claim
Patent Images

1. A method for providing location relevant directory assistance in a public switched telephone network (PSTN), the method comprising the steps of:

  • using a switch, connecting a calling party with a called party through the switch in the PSTN;

    receiving a directory assistance request from the calling party over the PSTN;

    querying a database disposed within the PSTN to retrieve caller identification for the calling party;

    retrieving from over a data communications network separate from the PSTN a call address in response to the querying of the database for said calling party from the database disposed within the PSTN;

    identifying location relevant directory information from a database that is external to the PSTN based upon said retrieved call address; and

    ,responding to said directory assistance request using said identified location relevant directory information.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×