05396548 is referenced by 43 patents and cites 11 patents.

A communication system detects special service information (e.g., calling party identification) during a silent interval between ringing signals on an incoming call and stores the information in a call record created for the call. In response to predetermined call conditions, this information is included as part of a control signal sent over an extension loop to a station terminal. Call features such as delayed ringing, hold, call transfers, line preselect and switch hook status are utilized to control where, when and if this information should be displayed at various station terminals.

Title
Communication system utilizing information received during a silent interval between ringing signals
Application Number
8/27976
Publication Number
5396548
Application Date
March 8, 1993
Publication Date
March 7, 1995
Inventor
Pamela A Savage
Howell
NJ, US
Paul J O Brien
Atlantic Highlands
NJ, US
Jeanne P Bayerl
Red Bank
NJ, US
Agent
John A Caccuro
Assignee
AT&T
NJ, US
IPC
H04M 3/42
H04M 1/00
H04M 15/06
H04M 15/00
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