05561704 is referenced by 223 patents and cites 5 patents.

A caller in a mobile vehicle requiring service determines his location such as longitude and latitude and transmits his location and service requirements in numbers; by wireless mobile phone tone signals to a remote directory station containing a data base with the phone numbers, service classifications and locations of service providers in the area of the caller to derive the telephone number of a provider who is conveniently closest to the caller and connects the caller to the communication channel of the selected telephone number or advises the caller of the selected providers telephone number. The database is regularly updated by the addition and deletion of providers subscribing to the service.

Title
Proximity based toll free communication services
Application Number
8/214341
Publication Number
5561704
Application Date
March 16, 1994
Publication Date
October 1, 1996
Inventor
Steven C Salimando
Little Silver
NJ, US
Assignee
AT&T
NJ, US
IPC
H04Q 7/22
H04M 11/00
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