05467388 is referenced by 359 patents and cites 19 patents.

A system for allowing a telephone subscriber to selectively block incoming calls for selected time periods or during programmed time intervals. A subscriber may pre-program a time interval in minutes, or a time period (start time and end time) for which some or all incoming calls are to be blocked. The subscriber may assign caller numbers or personal identification numbers to one of a plurality of tiers of access. The subscriber may enable the call blocking system for selected access tiers. An emergency access tier may be provided to insure emergency calls are not blocked by the system.

Title
Method and apparatus for selectively blocking incoming telephone calls
Application Number
188871
Publication Number
5467388
Application Date
February 6, 1995
Publication Date
November 14, 1995
Inventor
Liam P Brohan
Forks Township
PA, US
Von McConnell
Leawood
KS, US
James C Redd Jr
Silver Spring
MD, US
Agent
Lowe Price LeBlanc & Becker
Assignee
Bell Atlantic Network Services
VA, US
IPC
H04M 1/70
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