GB1119734A - Improvements in or relating to telecommunications exchange systems - Google Patents
Improvements in or relating to telecommunications exchange systemsInfo
- Publication number
- GB1119734A GB1119734A GB435567A GB435567A GB1119734A GB 1119734 A GB1119734 A GB 1119734A GB 435567 A GB435567 A GB 435567A GB 435567 A GB435567 A GB 435567A GB 1119734 A GB1119734 A GB 1119734A
- Authority
- GB
- United Kingdom
- Prior art keywords
- exchange systems
- relating
- telecommunications exchange
- jan
- fault
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/08—Indicating faults in circuits or apparatus
- H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
- H04M15/38—Charging, billing or metering by apparatus other than mechanical step-by-step counter type
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1966S0101728 DE1277940B (de) | 1966-01-31 | 1966-01-31 | Verfahren zur Fehlererkennung in durch zentrale Einrichtungen gesteuerten Fernmelde-,insbesondere Fernsprechvermittlungsanlagen |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1119734A true GB1119734A (en) | 1968-07-10 |
Family
ID=7523958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB435567A Expired GB1119734A (en) | 1966-01-31 | 1967-01-30 | Improvements in or relating to telecommunications exchange systems |
Country Status (7)
Country | Link |
---|---|
AT (1) | AT274053B (nl) |
BE (1) | BE693404A (nl) |
CH (1) | CH445576A (nl) |
DE (1) | DE1277940B (nl) |
ES (1) | ES336017A1 (nl) |
GB (1) | GB1119734A (nl) |
NL (1) | NL6615364A (nl) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1118274B (de) * | 1959-11-06 | 1961-11-30 | Siemens Ag | Verfahren und Schaltungsanordnung zur automatischen Ermittlung des Ortes von Fehlern, die in einem nachrichtenverarbeitenden System, insbesondere in einem Fernsprechvermittlungssystem, auftreten |
-
1966
- 1966-01-31 DE DE1966S0101728 patent/DE1277940B/de not_active Withdrawn
- 1966-10-31 NL NL6615364A patent/NL6615364A/xx unknown
-
1967
- 1967-01-24 ES ES0336017A patent/ES336017A1/es not_active Expired
- 1967-01-27 CH CH127867A patent/CH445576A/de unknown
- 1967-01-30 GB GB435567A patent/GB1119734A/en not_active Expired
- 1967-01-30 AT AT87067A patent/AT274053B/de active
- 1967-01-31 BE BE693404D patent/BE693404A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
AT274053B (de) | 1969-09-10 |
BE693404A (nl) | 1967-07-31 |
DE1277940B (de) | 1968-09-19 |
NL6615364A (nl) | 1967-08-01 |
CH445576A (de) | 1967-10-31 |
ES336017A1 (es) | 1967-12-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1053349A (nl) | ||
GB1067210A (en) | Telephone hold program system | |
GB1068977A (en) | Improvements in or relating to switching networks for use in telecommunications exchange systems | |
SE327219B (nl) | ||
GB1119734A (en) | Improvements in or relating to telecommunications exchange systems | |
GB1456250A (en) | Matrix control circuit | |
GB1034301A (en) | Supervisory and remote control systems | |
GB1342922A (en) | Telephone switching system | |
JPS5360506A (en) | Circuit control system | |
GB1103494A (en) | Improvements in or relating to automatic telephone exchange systems | |
GB1112573A (en) | Improvements in or relating to polarised relay circuits and to electrical traffic analysers using such circuits | |
GB992884A (nl) | ||
CA623754A (en) | Marker circuit for telephone switching systems | |
GB1074038A (en) | Improvements in or relating to telecommunications exchange systems | |
GB822319A (en) | Improvements in or relating to telephone systems | |
GB734911A (en) | Improvements in or relating to telephone systems | |
CA636580A (en) | Automatic telecommunication switching systems | |
GB1246509A (en) | Electric source and control circuits of a telephone apparatus | |
ES237473A1 (es) | Disposicion selectora con conexion de ensayo o prueba | |
GB1275727A (en) | Improvements in and relating to switching units | |
CA661795A (en) | Automatic telecommunication switching systems | |
CA657626A (en) | Automatic telecommunication switching systems | |
CA671368A (en) | Automatic telegraph switching system | |
GB964865A (en) | Improvements in or relating to automatic telephone systems | |
AU259330B2 (en) | Improvements relating to automatic telecommunication switching systems |