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Class Information
Number: 379/207.1
Name: Telephonic communications > Special services > Service trigger (activation or deactivation) > Line or loop condition > No answer (e.g., ringing signal, on-hook, idle) > Expiration of predetermined time period
Description: Subject matter wherein the implementation of a service is controlled in response to a predetermined period of time having elapsed.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7542768 |
Dynamic ring start delay based on multiple factors |
Jun. 2, 2009 |
| 7301661 |
Communication terminal device and method of controlling same |
Nov. 27, 2007 |
| 7224788 |
Method and device for generating voice/text/image commercial information ringback tone during communication wait |
May. 29, 2007 |
| 7092501 |
Method and apparatus for providing prepaid local telephone services |
Aug. 15, 2006 |
| 7062026 |
Telephone apparatus and start control method |
Jun. 13, 2006 |
| 7046781 |
Adaptive feature behavior |
May. 16, 2006 |
| 6834101 |
Ain based call retry and enhanced call waiting services |
Dec. 21, 2004 |
| 6807253 |
Switching apparatus having function for processing malicious call and operating method of the same |
Oct. 19, 2004 |
| 6795540 |
Premised based 3-way call detection device |
Sep. 21, 2004 |
| 6526140 |
Consolidated voice activity detection and noise estimation |
Feb. 25, 2003 |
| 6519334 |
Method for processing incoming call in exchange system |
Feb. 11, 2003 |
| 6393117 |
Telephoning method comprising novel subscriber service |
May. 21, 2002 |
| 6307929 |
Apparatus, method and system for providing conditional answering in multiple leg telecommunication sessions |
Oct. 23, 2001 |
| 5802160 |
Multi-ring telephone method and system |
Sep. 1, 1998 |
| 5761289 |
800 number callback |
Jun. 2, 1998 |
| 5661788 |
Method and system for selectively alerting user and answering preferred telephone calls |
Aug. 26, 1997 |
| 5600704 |
Systems and methods for prioritized routing of telephone calls to a subscriber |
Feb. 4, 1997 |
| 5598464 |
Method and apparatus for providing local number portability |
Jan. 28, 1997 |
| 5586169 |
Method of ringing a call responsive apparatus which answered an immediately preceding incoming call |
Dec. 17, 1996 |
| 5579383 |
Calling terminal controlled call coverage |
Nov. 26, 1996 |
| 5553128 |
Control of call forwarding by a target telephone |
Sep. 3, 1996 |
| 5481602 |
Method and apparatus for alternate destination routing for switching egress customers |
Jan. 2, 1996 |
| 5438616 |
Method and apparatus for storing telephone numbers and for automatically calling the stored numbers |
Aug. 1, 1995 |
| 5394464 |
Progressive automatic activation and automatic resetting of call coverage |
Feb. 28, 1995 |
| 5369695 |
Method of redirecting a telephone call to an alternate destination |
Nov. 29, 1994 |
| 5208849 |
Method of and apparatus for private telephone automatic locating and answering |
May. 4, 1993 |
| 5151929 |
Computer-controlled radio-paging and telephone communication using recorded voice messages |
Sep. 29, 1992 |
| 4937857 |
Plural terminals communication controlling system |
Jun. 26, 1990 |
| 4873717 |
Call coverage arrangement |
Oct. 10, 1989 |
| 4436963 |
Implied principal addressing in a call coverage arrangement |
Mar. 13, 1984 |
| 4436962 |
Call coverage arrangement |
Mar. 13, 1984 |
| 4413158 |
Automatic call forwarding telephone apparatus |
Nov. 1, 1983 |
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