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Class Information
Number: 379/242
Name: Telephonic communications > Centralized switching system
Description: Subject matter which selectively connects two telephone subscriber lines for communication.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5572586 |
Communication control apparatus and method and communication exchange apparatus and method |
Nov. 5, 1996 |
| 5572585 |
Communication system and call processing method |
Nov. 5, 1996 |
| 5568543 |
Stored program controlled digital public exchange |
Oct. 22, 1996 |
| 5566239 |
Floating digital loop carrier telephone interface |
Oct. 15, 1996 |
| 5566236 |
System and method for re-establishing a disconnected telephone communication |
Oct. 15, 1996 |
| 5553127 |
System and method for processing and analyzing telephone calls in a telephone exchange |
Sep. 3, 1996 |
| 5550914 |
Communications signalling network apparatus |
Aug. 27, 1996 |
| 5548640 |
Method for updating a system program in a switching equipment |
Aug. 20, 1996 |
| 5546453 |
Telecommunication switch having programmable network protocols and communications services |
Aug. 13, 1996 |
| 5535262 |
Electronic private exchange system having talking recording function |
Jul. 9, 1996 |
| 5509058 |
Global management of telephone directory |
Apr. 16, 1996 |
| 5499290 |
AIN non-call associated signalling for service nodes and service control points in a telephone system |
Mar. 12, 1996 |
| 5485512 |
Mnemonic and synonymic addressing in a telecommunications system |
Jan. 16, 1996 |
| 5469501 |
Communication exchange apparatus with switching of communication terminal information |
Nov. 21, 1995 |
| 5461669 |
Telecommunication network with separate call control and connection control |
Oct. 24, 1995 |
| 5459778 |
Telephone exchange apparatus, and method of connecting calls therein |
Oct. 17, 1995 |
| 5452350 |
Subscriber call routing processing system |
Sep. 19, 1995 |
| 5440626 |
Arrangement for sharing a telephone office code |
Aug. 8, 1995 |
| 5426694 |
Telecommunication switch having programmable network protocols and communications services |
Jun. 20, 1995 |
| 5414763 |
Apparatus and method for providing echo suppression to a plurality of telephones |
May. 9, 1995 |
| 5414762 |
Telephony controller with functionality command converter |
May. 9, 1995 |
| 5412714 |
Mnemonic and synonymic addressing in a telecommunications system |
May. 2, 1995 |
| 5394463 |
Telephone call processing arrangement based on calling and called party telephone services |
Feb. 28, 1995 |
| 5392340 |
Telephone exchange apparatus |
Feb. 21, 1995 |
| 5386464 |
Feature control system utilizing design oriented state table language |
Jan. 31, 1995 |
| 5379383 |
Communication service control system in an intelligent network providing controllers for controlling different services |
Jan. 3, 1995 |
| 5361298 |
Telecommunications service provision equipment transfer |
Nov. 1, 1994 |
| 5351234 |
System for integrated distribution of switched voice and television on coaxial cable |
Sep. 27, 1994 |
| 5333189 |
Communications protocol for switching systems |
Jul. 26, 1994 |
| 5331667 |
Telephone exchange apparatus with communication line clocking |
Jul. 19, 1994 |
| 5329579 |
Modular adjunct processor made of identical multi-function modules adaptable under direction of one of them to perform any of the adjunct-processor functions |
Jul. 12, 1994 |
| 5315647 |
Private branch exchange adapted for telemarketing |
May. 24, 1994 |
| 5311574 |
Automatic customer call back for automatic call distribution systems |
May. 10, 1994 |
| 5311572 |
Cooperative databases call processing system |
May. 10, 1994 |
| 5291550 |
Dynamic network call distributor |
Mar. 1, 1994 |
| 5263083 |
Method and apparatus for sharing speakerphone processor among multiple users |
Nov. 16, 1993 |
| 5263021 |
System for integrated distribution of switched voice and television on coaxial cable |
Nov. 16, 1993 |
| 5251248 |
Telephone network having personal numbers for position-independent |
Oct. 5, 1993 |
| 5251255 |
Processing interactions among telecommunications call features |
Oct. 5, 1993 |
| 5249221 |
Telephone answering system with call transfer |
Sep. 28, 1993 |
| 5235630 |
Emergency call station identification system and method |
Aug. 10, 1993 |
| 5138648 |
Public modular-telephone management system |
Aug. 11, 1992 |
| 5136636 |
Telephone connection to a nearby dealer |
Aug. 4, 1992 |
| 5119413 |
System and method to alter the functions assigned to the keys of a terminal connected to an electronic exchange |
Jun. 2, 1992 |
| 4983008 |
Strained distributed optical fiber communication system |
Jan. 8, 1991 |
| 4975947 |
System to share the DSP computation resources |
Dec. 4, 1990 |
| 4887079 |
Rearrangeable multiconnection switching networks constructed using combinatorial designs |
Dec. 12, 1989 |
| 4885769 |
Station controller for enhanced multi-line pick-up in centrex exchange telephone system |
Dec. 5, 1989 |
| 4837810 |
Telephone switch center with control of individual devices |
Jun. 6, 1989 |
| 4807281 |
Method for load distribution among the central processors of a multiprocessor central control unit of a switching system |
Feb. 21, 1989 |
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