GB1573019A - Automatic test system for an automatic switching exchange - Google Patents
Automatic test system for an automatic switching exchange Download PDFInfo
- Publication number
- GB1573019A GB1573019A GB53812/76A GB5381276A GB1573019A GB 1573019 A GB1573019 A GB 1573019A GB 53812/76 A GB53812/76 A GB 53812/76A GB 5381276 A GB5381276 A GB 5381276A GB 1573019 A GB1573019 A GB 1573019A
- Authority
- GB
- United Kingdom
- Prior art keywords
- test
- call
- test call
- exchange
- trunk
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/20—Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles
- H04Q1/22—Automatic arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7600380A FR2337976A1 (fr) | 1976-01-08 | 1976-01-08 | Systeme d'essais automatiques |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1573019A true GB1573019A (en) | 1980-08-13 |
Family
ID=9167720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB53812/76A Expired GB1573019A (en) | 1976-01-08 | 1976-12-23 | Automatic test system for an automatic switching exchange |
Country Status (11)
Country | Link |
---|---|
BE (1) | BE849886A (fr) |
CH (1) | CH619576A5 (fr) |
DE (1) | DE2700277A1 (fr) |
FR (1) | FR2337976A1 (fr) |
GB (1) | GB1573019A (fr) |
IE (1) | IE44651B1 (fr) |
IT (1) | IT1084001B (fr) |
NL (1) | NL7700110A (fr) |
OA (1) | OA05527A (fr) |
SE (1) | SE412501B (fr) |
ZA (1) | ZA7774B (fr) |
-
1976
- 1976-01-08 FR FR7600380A patent/FR2337976A1/fr active Granted
- 1976-12-23 GB GB53812/76A patent/GB1573019A/en not_active Expired
- 1976-12-28 CH CH1638276A patent/CH619576A5/fr not_active IP Right Cessation
- 1976-12-28 BE BE1007850A patent/BE849886A/fr unknown
- 1976-12-29 OA OA56029A patent/OA05527A/fr unknown
-
1977
- 1977-01-03 SE SE7700028A patent/SE412501B/sv unknown
- 1977-01-04 IT IT19011/77A patent/IT1084001B/it active
- 1977-01-05 DE DE19772700277 patent/DE2700277A1/de not_active Withdrawn
- 1977-01-06 ZA ZA770074A patent/ZA7774B/xx unknown
- 1977-01-07 IE IE29/77A patent/IE44651B1/en unknown
- 1977-01-07 NL NL7700110A patent/NL7700110A/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
IE44651B1 (en) | 1982-02-10 |
FR2337976A1 (fr) | 1977-08-05 |
SE7700028L (sv) | 1977-07-09 |
CH619576A5 (en) | 1980-09-30 |
OA05527A (fr) | 1981-04-30 |
FR2337976B1 (fr) | 1981-01-30 |
BE849886A (fr) | 1977-06-28 |
IT1084001B (it) | 1985-05-25 |
DE2700277A1 (de) | 1977-08-25 |
ZA7774B (en) | 1977-11-30 |
SE412501B (sv) | 1980-03-03 |
IE44651L (en) | 1977-07-08 |
NL7700110A (nl) | 1977-07-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3339029A (en) | Pbx group hunting for communication switching systems | |
US3729594A (en) | Line and link sensing technique for pabx telephone system | |
US1691410A (en) | Automatic telephone system | |
US3721769A (en) | Call metering for pabx telephone system | |
GB1573019A (en) | Automatic test system for an automatic switching exchange | |
US3725599A (en) | Call pickup service for pabx telephone system | |
US2299212A (en) | Telephone system | |
US2834835A (en) | Dial telephone system employing senders with card translators | |
GB920072A (en) | Communication switching system | |
US3062918A (en) | Automatic call recording system | |
US3337692A (en) | Line lockout in a cross point switching system | |
US2598098A (en) | Telephone call distributing system | |
US3413421A (en) | Apparatus to select and identify one of a possible plurality of terminals calling for service in a communication switching system | |
US4224477A (en) | Arrangement for translating telephone station equipment numbers into directory numbers | |
US2097165A (en) | Telephone system | |
US3522385A (en) | Calling subscriber identification circuit | |
US3500442A (en) | Telephone switching network with all auxiliary equipment connected to line side | |
US2533342A (en) | Tandem switching system | |
US1901940A (en) | Telephone exchange system | |
US3673333A (en) | Accounting system for telephonic exchanges | |
US1901177A (en) | Multioffice telephone system | |
US3681537A (en) | Marker for communication switching system | |
US3462556A (en) | Calling line terminal identifier | |
US1542977A (en) | Telephone-exchange system | |
US3427405A (en) | Seizure and hold circuits for a communication switching network |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |