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Class Information
Number: 379/11
Name: Telephonic communications > Diagnostic testing, malfunction indication, or electrical condition measurement > Of centralized switching system > By automatic testing sequence > Routiner
Description: Subject matter wherein centralized switching equipment is tested by performing actual line selection.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6532288 |
Tandem access control processor connected to the public switched telephone network for controlling features |
Mar. 11, 2003 |
| 6026157 |
Device for upgrading a reporting system |
Feb. 15, 2000 |
| 6002755 |
Method for providing call-charge information as well as call-charge device, subscriber terminal and service unit |
Dec. 14, 1999 |
| 5898763 |
Equipment for facsimile call service of telephone exchange |
Apr. 27, 1999 |
| 5867564 |
Time-of-day clock synchronization in commincations networks |
Feb. 2, 1999 |
| 5867495 |
System, method and article of manufacture for communications utilizing calling, plans in a hybrid network |
Feb. 2, 1999 |
| 5818918 |
Personal handy phone system |
Oct. 6, 1998 |
| 5621782 |
Test interface adapter emulating on test trunk interface for non-standard central office switch |
Apr. 15, 1997 |
| 5621670 |
Communication service simulator and a communication service specification verifying method |
Apr. 15, 1997 |
| 5511108 |
Apparatus and method for performing and controlling testing of electrical equipment |
Apr. 23, 1996 |
| 5410586 |
Method for analyzing an IDNX network |
Apr. 25, 1995 |
| 5187733 |
Verification of subscriber lines prior to cutover to a new switching system |
Feb. 16, 1993 |
| 5065422 |
Subscriber call simulator capable of testing new services of a telephone switching system |
Nov. 12, 1991 |
| 4975938 |
Communications link testing |
Dec. 4, 1990 |
| 4852144 |
Traffic generator analog |
Jul. 25, 1989 |
| 4680784 |
Traffic simulator for testing exchanges taking the subscriber-system interaction into account |
Jul. 14, 1987 |
| 4552997 |
Arrangement for loop analysis testing for a digital switching system |
Nov. 12, 1985 |
| 4255624 |
Call processing monitor system |
Mar. 10, 1981 |
| 4201885 |
Routinable clock circuit |
May. 6, 1980 |
| 4129756 |
Telephone exchange signalling unit |
Dec. 12, 1978 |
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