05181238 is referenced by 177 patents and cites 16 patents.

This invention relates to arrangements for providing pre-authenticated access from a caller to a service provider. The caller dials the number of the service provider and subsequently enters a personal identification number (PIN) or other suitable authentication data, and, if necessary, an account number. A data base in the communications carrier verifies that the caller has been authorized to access the service provider and that the PIN is correct for that caller and forwards the call to the service provider only if both checks are satisfied. Only preauthenticated calls are delivered to the service provider, and the caller need only remember one PIN for all the service providers accessed by this arrangement.

Title
Authenticated communications access service
Application Number
7/359823
Publication Number
5181238
Application Date
May 31, 1989
Publication Date
January 19, 1993
Inventor
Roy P Weber
Bridgewater
NJ, US
John W Palmer
Atlantic Highlands
NJ, US
John B Medamana
Matawan
NJ, US
Agent
Werner Ulrich
Assignee
AT&T Bell Laboratories
NJ, US
IPC
H04M 11/00
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