FR2493647B1 - Dispositif de conference multiple pour central telephonique - Google Patents
Dispositif de conference multiple pour central telephoniqueInfo
- Publication number
- FR2493647B1 FR2493647B1 FR8023462A FR8023462A FR2493647B1 FR 2493647 B1 FR2493647 B1 FR 2493647B1 FR 8023462 A FR8023462 A FR 8023462A FR 8023462 A FR8023462 A FR 8023462A FR 2493647 B1 FR2493647 B1 FR 2493647B1
- Authority
- FR
- France
- Prior art keywords
- conference device
- telephone central
- multiple conference
- telephone
- central
- 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
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
- H04M3/561—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities by multiplexing
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8023462A FR2493647B1 (fr) | 1980-11-03 | 1980-11-03 | Dispositif de conference multiple pour central telephonique |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8023462A FR2493647B1 (fr) | 1980-11-03 | 1980-11-03 | Dispositif de conference multiple pour central telephonique |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2493647A1 FR2493647A1 (fr) | 1982-05-07 |
FR2493647B1 true FR2493647B1 (fr) | 1987-10-02 |
Family
ID=9247619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8023462A Expired FR2493647B1 (fr) | 1980-11-03 | 1980-11-03 | Dispositif de conference multiple pour central telephonique |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2493647B1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2533784B1 (fr) * | 1982-09-28 | 1989-06-30 | Thomson Csf Mat Tel | Dispositif de conferences multiples pour autocommutateur temporel mic avec reseau de connexion |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1455405A (en) * | 1975-05-31 | 1976-11-10 | Post Office | Conference units |
-
1980
- 1980-11-03 FR FR8023462A patent/FR2493647B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2493647A1 (fr) | 1982-05-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |