04054756 is referenced by 209 patents and cites 5 patents.

A system is disclosed for serving special service calls such as collect, person-to-person and charge-to-third number on a wholly automatic basis without any operator intervention normally being required. The system requests specific information from the calling party such as, his or her name for collect calls, and utilizes the received answers in the formulation of additional announcements to the "called" subscriber. The system is responsive to information received from the called station or third party station for instituting billing for the requested call after a connection is established between the calling and called stations.

Title
Method and apparatus for automating special service call handling
Application Number
5/727767
Publication Number
4054756
Application Date
September 29, 1976
Publication Date
October 18, 1977
Inventor
Bernard Julius Yokelson
Mendham Township, Morris County
NJ, US
William Kirk Comella
Naperville
IL, US
Agent
John C Albrecht
Martin S Landis
Assignee
Bell Telephone Laboratories Incorporated
NJ, US
IPC
H04M 17/00
H04M 3/42
View Original Source