IT978737B - Sistema telefonico perfezionato - Google Patents
Sistema telefonico perfezionatoInfo
- Publication number
- IT978737B IT978737B IT1994473A IT1994473A IT978737B IT 978737 B IT978737 B IT 978737B IT 1994473 A IT1994473 A IT 1994473A IT 1994473 A IT1994473 A IT 1994473A IT 978737 B IT978737 B IT 978737B
- Authority
- IT
- Italy
- Prior art keywords
- perfected
- telephone system
- telephone
- perfected telephone
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
- H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
- H04Q3/625—Arrangements in the private branch exchange
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Telephonic Communication Services (AREA)
- Exchange Systems With Centralized Control (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7204896A FR2171676A5 (de) | 1972-02-08 | 1972-02-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT978737B true IT978737B (it) | 1974-09-20 |
Family
ID=9093461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT1994473A IT978737B (it) | 1972-02-08 | 1973-02-02 | Sistema telefonico perfezionato |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS4893206A (de) |
BE (1) | BE795147A (de) |
CA (1) | CA992184A (de) |
DE (1) | DE2304925C3 (de) |
FR (1) | FR2171676A5 (de) |
GB (1) | GB1408713A (de) |
IT (1) | IT978737B (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2830282C3 (de) * | 1978-07-10 | 1981-10-15 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung für Fernmeldevermittlungsanlagen, insbesondere Fernsprechvermittlungsanlagen mit Einrichtungen zur Berechtigungsbewertung |
DE2830281C3 (de) * | 1978-07-10 | 1981-06-25 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung für Fernmeldevermittlungsanlagen, insbesondere Fernsprechvermittlungsanlagen, mit Einrichtungen zur Berechtigungsbewertung |
DE2929514C2 (de) * | 1979-07-20 | 1985-04-18 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zum Abfragen von Teilnehmerberechtigungen in einer zentral gesteuerten Fernsprechnebenstellenanlage |
DE3432144A1 (de) * | 1984-08-31 | 1986-03-13 | Siemens AG, 1000 Berlin und 8000 München | Verfahren fuer eine mit einem betriebstechnischen terminal ausgeruestete waehlnebenstellenanlage |
DE3433660A1 (de) * | 1984-09-13 | 1986-03-20 | Siemens AG, 1000 Berlin und 8000 München | Verfahren fuer eine waehlnebenstellenanlage, die mit einem betriebstechnischen terminal ausgeruestet ist |
DE3725061A1 (de) * | 1987-07-29 | 1989-02-09 | Telefonbau & Normalzeit Gmbh | Anordnung zur ueberwachung mehrstelliger rufmummern fuer fernmelde-, insbesondere fernsprechvermittlungsanlagen |
DE3932689A1 (de) * | 1989-09-29 | 1991-04-11 | Siemens Ag | Verfahren zur aktivierung einer nachtschaltung in einer nebenstellenkommunikationsanlage |
DE4412562A1 (de) * | 1994-04-12 | 1995-10-19 | Siemens Ag | Kommunikationssystem mit konfigurierten Gruppen von ISDN-B-Kanälen |
-
0
- BE BE795147D patent/BE795147A/xx not_active IP Right Cessation
-
1972
- 1972-02-08 FR FR7204896A patent/FR2171676A5/fr not_active Expired
-
1973
- 1973-01-19 JP JP799373A patent/JPS4893206A/ja active Pending
- 1973-01-31 GB GB486473A patent/GB1408713A/en not_active Expired
- 1973-01-31 CA CA163,175A patent/CA992184A/en not_active Expired
- 1973-02-01 DE DE19732304925 patent/DE2304925C3/de not_active Expired
- 1973-02-02 IT IT1994473A patent/IT978737B/it active
Also Published As
Publication number | Publication date |
---|---|
JPS4893206A (de) | 1973-12-03 |
BE795147A (fr) | 1973-05-29 |
FR2171676A5 (de) | 1973-09-21 |
CA992184A (en) | 1976-06-29 |
GB1408713A (en) | 1975-10-01 |
DE2304925B2 (de) | 1975-07-10 |
DE2304925A1 (de) | 1973-08-16 |
DE2304925C3 (de) | 1980-09-11 |
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